Method and apparatus for processing multi-band signals, storage medium, and electronic device

Abstract

The present application discloses a method and apparatus for processing multi-band signals, a storage medium, and an electronic device. Among them, the method includes: when it is detected that the reception opportunity of the signal in the target band among multiple bands arrives, controlling the target filtering device corresponding to the target band to filter the initial signal to obtain an intermediate signal; controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal to obtain a target signal; controlling the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station; when it is detected that the target authenticity is higher than or equal to the authenticity threshold, controlling the detection device to send the target signal to the target terminal. By adopting the above technical solution, the problem of low reception efficiency of multi-band signals is solved, and the technical effect of improving the reception efficiency of multi-band signals is achieved.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular, to a method and apparatus for processing multi-band signals, a storage medium, and an electronic device. Background Art

[0002] Currently, corresponding receiving links are used to receive and process signals of different frequency bands. Multiple different frequency bands require multiple different signal receiving links, and multiple sets of combinations of filters and power amplifiers are needed, wasting component resources. Moreover, the current receiving schemes for signals of different frequency bands only perform simple filtering and fixed power amplification on the received signals, ignoring the possibility that the received signals are interfered by false base stations and harmonics of other frequency bands in space. Coupled with the mutual crosstalk between multiple frequency band signals received in the same time period, the quality of the received signals is not good, and the efficiency of receiving multi-band signals is not high.

[0003] In view of the problems such as low receiving efficiency of multi-band signals in the related art, no effective solution has been proposed yet. Summary of the Invention

[0004] Embodiments of the present application provide a method and apparatus for processing multi-band signals, a storage medium, and an electronic device, so as to at least solve the problems such as low receiving efficiency of multi-band signals in the related art.

[0005] According to an embodiment of the embodiments of the present application, a method for processing multi-band signals is provided. The multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and a plurality of filtering devices. The output end of the signal receiving device is connected to the input ends of the plurality of filtering devices. The output ends of the plurality of filtering devices are connected to the input end of the power adjustment device. The output end of the power adjustment device is connected to the input end of the detection device. The output end of the detection device is used to transmit the processed signal to a target terminal. The control device is connected to the plurality of filtering devices, the power adjustment device, and the detection device. The signal receiving device is used to receive an initial signal of a signal having multiple frequency bands. The plurality of filtering devices correspond to the plurality of frequency bands one by one. The method is applied to the control device, and the method includes:

[0006] When it is detected that the receiving opportunity of the signal of the target frequency band in the plurality of frequency bands arrives, controlling the target filtering device corresponding to the target frequency band to filter the initial signal to obtain an intermediate signal, where the plurality of filtering devices include the target filtering device;

[0007] Control the power adjustment device to adjust the power of the intermediate signal according to the signal power information of the intermediate signal and a power threshold to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal;

[0008] Control the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station, where the target signal feature information is used to indicate the signal feature attributes of the target signal, the target base station feature information is used to indicate the signal feature attributes of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station;

[0009] When it is detected that the target authenticity is higher than or equal to an authenticity threshold, control the detection device to send the target signal to the target terminal.

[0010] Optionally, the power adjustment device includes a gain regulator and a power amplifier;

[0011] The controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information of the intermediate signal and a power threshold includes:

[0012] Calculate first power information according to the signal power information and the signal amplification parameter of the power amplifier, where the first power information is used to indicate the power magnitude of the signal after the intermediate signal is power-amplified by the power amplifier;

[0013] When it is detected that the first power information is greater than a first power threshold, control the gain regulator to reduce the power of the intermediate signal, where the power threshold includes the first power threshold;

[0014] When it is detected that the first power information is less than a second power threshold, control the gain regulator to increase the power of the intermediate signal, where the power threshold includes the second power threshold, and the second power threshold is less than the first power threshold.

[0015] Optionally, the control device includes a signal coupling line, a signal detector, an analog-to-digital converter, and a first controller. The input end of the signal coupling line is deployed within the coupling range of the output end of the target filtering device. The output end of the signal coupling line is connected to the input end of the signal detector. The output end of the signal detector is connected to the input end of the analog-to-digital converter. The output end of the analog-to-digital converter is connected to the input end of the controller;

[0016] Controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal includes:

[0017] The signal coupling line collects a reference signal of the intermediate signal, where the reference signal corresponds one-to-one with the intermediate signal, and the second power information of the reference signal corresponds one-to-one with the signal power information, and the second power information is used to indicate the signal power magnitude of the reference signal;

[0018] The signal detector extracts a reference power signal from the reference signal, where the reference power signal is used to indicate the signal power change condition of the reference signal;

[0019] The analog-to-digital converter converts the reference power signal into a digital power signal;

[0020] The first controller detects the second power information from the digital power signal;

[0021] The first controller looks up the target gain parameter corresponding to the second power information from the power information and gain parameters with a corresponding relationship, where the target gain parameter is used to indicate the signal power change condition of the signal after being power-adjusted by the power adjustment device;

[0022] The first controller controls the power adjustment device to adjust the power of the intermediate signal according to the target gain parameter.

[0023] Optionally, the output end of the first controller is further used to connect to the target terminal;

[0024] After the analog-to-digital converter converts the reference power signal into a digital power signal, the method further includes:

[0025] The first controller detects a fluctuation parameter of the digital power signal, where the fluctuation parameter is used to indicate the signal power magnitude fluctuation condition of the signal in the target frequency band;

[0026] When the first controller detects that the fluctuation parameter is greater than or equal to a fluctuation threshold, it generates signal fluctuation information;

[0027] The first controller sends the signal fluctuation information to the target terminal, where the signal fluctuation information is used to prompt on the target terminal that the stability of the signal in the target frequency band does not meet the stability requirement.

[0028] Optionally, controlling the detection device to detect the target authenticity of the target signal according to the target signal feature information and target base station feature information of the target signal includes:

[0029] Control the detection device to detect the similarity between the signal frame structure of the target signal and the target frame structure of the target base station, where the similarity is used to indicate the degree of similarity between the signal frame structure and the target frame structure, the target signal feature information includes the signal frame structure, and the target base station feature information includes the target frame structure;

[0030] When it is detected that the similarity is higher than or equal to the similarity threshold, it is determined that the detected target authenticity is higher than or equal to the authenticity threshold;

[0031] When it is detected that the similarity is lower than the similarity threshold, it is determined that the detected target authenticity is lower than the authenticity threshold.

[0032] Optionally, controlling the target filtering device corresponding to the target frequency band to filter the initial signal includes:

[0033] Control the filtering link where the target filtering device is located to conduct and control the filtering links where the other filtering devices among the multiple filtering devices are located to disconnect, where the other filtering devices are the filtering devices other than the target filtering device among the multiple filtering devices.

[0034] Optionally, the control device includes a second controller, a first switch, and a second switch;

[0035] The control of the filtering link where the target filtering device is located to conduct and the control of the filtering links where the other filtering devices among the multiple filtering devices are located to disconnect includes:

[0036] The second controller controls the first switch to connect to the input end of the target filtering device and controls the second switch to connect to the output end of the target filtering device.

[0037] According to another embodiment of the embodiments of the present application, there is also provided a processing device for multi-band signals. The multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and multiple filtering devices. The output end of the signal receiving device is connected to the input ends of the multiple filtering devices, the output ends of the multiple filtering devices are connected to the input end of the power adjustment device, the output end of the power adjustment device is connected to the input end of the detection device, the output end of the detection device is used to transmit the processed signal to the target terminal, the control device is connected to the multiple filtering devices, the power adjustment device, and the detection device. The signal receiving device is used to receive the initial signal of the signal with multiple frequency bands, the multiple filtering devices correspond to the multiple frequency bands one by one, the device is applied to the control device, and the device includes:

[0038] A filtering module, configured to, when it is detected that the reception opportunity of the signal in the target frequency band among the multiple frequency bands arrives, control a target filtering device corresponding to the target frequency band to filter the initial signal to obtain an intermediate signal, where the multiple filtering devices include the target filtering device;

[0039] An adjustment module, configured to control the power adjustment device to adjust the power of the intermediate signal according to the signal power information and the power threshold of the intermediate signal to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal;

[0040] A detection module, configured to control the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station, where the target signal feature information is used to indicate the signal feature attribute of the target signal, the target base station feature information is used to indicate the signal feature attribute of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station;

[0041] A sending module, configured to, when it is detected that the target authenticity is higher than or equal to the authenticity threshold, control the detection device to send the target signal to the target terminal.

[0042] According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, where the computer program is configured to execute the above multi-band signal processing method when running.

[0043] According to another aspect of the embodiments of the present application, there is also provided an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the above processor executes the above multi-band signal processing method through the computer program.

[0044] Through this application, since the multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and multiple filtering devices, the output end of the signal receiving device is connected to the input ends of the multiple filtering devices, the output ends of the multiple filtering devices are connected to the input end of the power adjustment device, the output end of the power adjustment device is connected to the input end of the detection device, the output end of the detection device is used to transmit the processed signal to the target terminal, the control device is connected to the multiple filtering devices, the power adjustment device, and the detection device, the signal receiving device is used to receive the initial signal of the signal with multiple frequency bands, the multiple filtering devices correspond to the multiple frequency bands one by one, by controlling the target filtering device among the multiple filtering devices corresponding to the target frequency band to filter the initial signal when the receiving opportunity of the signal of the target frequency band among the multiple frequency bands is detected, obtaining an intermediate signal, controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information for indicating the signal power of the intermediate signal and the power threshold to obtain a target signal, controlling the detection device to detect the target authenticity for indicating the probability that the target signal comes from the target base station according to the target signal feature information for indicating the signal feature attributes of the target signal and the target base station feature information for indicating the signal feature attributes of the signal sent by the target base station, and controlling the detection device to send the target signal to the target terminal when the detected target authenticity is higher than or equal to the authenticity threshold. By adopting the above technical solution, filtering the multi-band signal with the corresponding filtering device at the corresponding opportunity, different signal frequency bands correspond to different filters, then it is no longer necessary to complete the reception of the multi-band signal with multiple sets of device combinations, and the signals of different frequency bands are collected at different times, avoiding the mutual crosstalk between the signals of different frequency bands. Coupled with adjusting the power of the signal in combination with the power information and power threshold of the signal after filtering the signal, it avoids the damage and influence of the abnormal power performance of the received signal caused by the interference of the pseudo base station signal and the harmonic signals of other frequency bands on the devices of the multi-band receiving system. Finally, by comparing the target signal feature and the base station signal feature, the probability that the received signal comes from the target base station is detected, further reducing the influence of the pseudo base station signal on the actually received signal and improving the reception efficiency of the multi-band signal. Therefore, the problem of low reception efficiency of the multi-band signal in the related technology is solved, and the technical effect of improving the reception efficiency of the multi-band signal is achieved. Brief Description of the Drawings

[0045] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing the embodiments consistent with this application, and are used together with the specification to explain the principles of this application.

[0046] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0047] Figure 1 is a schematic diagram of the hardware environment of a method for processing multi-band signals according to an embodiment of the present application;

[0048] Figure 2 is a flowchart of a method for processing multi-band signals according to an embodiment of the present application;

[0049] Figure 3 is a schematic diagram of a multi-band receiving system according to an embodiment of the present application Figure 1 ;

[0050] Figure 4 is a schematic diagram of a multi-band receiving system according to an embodiment of the present application Figure 2 ;

[0051] Figure 5 is a structural block diagram of a device for processing multi-band signals according to an embodiment of the present application. Detailed implementation manners

[0052] In order to enable those skilled in the art of this technology to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0054] The method embodiments provided in the embodiments of the present application can be executed in a computer terminal, a device terminal, or a similar computing device. Taking running on a computer terminal as an example, Figure 1 is a schematic diagram of the hardware environment of a method for processing multi-band signals according to an embodiment of the present application. As Figure 1 shown, the computer terminal may include one or more ( Figure 1 only one is shown in the figure) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data. In an exemplary embodiment, the above computer terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown is only schematic and does not limit the structure of the above computer terminal. For example, the computer terminal may further include more or fewer components than Figure 1 shown in the figure, or have an equivalent function to Figure 1 shown in the figure or different configurations with more functions than Figure 1 shown in the figure.

[0055] The memory 104 can be used to store computer programs. For example, software programs and modules of application software, such as the computer program corresponding to the message push sending method in the embodiments of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, implements the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some instances, the memory 104 may further include a memory remotely set relative to the processor 102, and these remote memories can be connected to the computer terminal through a network. Examples of the above network include, but are not limited to, the Internet, an enterprise intranet, a local area network, a mobile communication network, and their combinations.

[0056] The transmission device 106 is used to receive or send data via a network. Specific examples of the above network may include a wireless network provided by a communication provider of the computer terminal. In one instance, the transmission device 106 includes a network adapter (abbreviated as NIC), which can be connected to other network devices through a base station and thus communicate with the Internet. In one instance, the transmission device 106 may be a radio frequency (abbreviated as RF) module, which is used to communicate with the Internet wirelessly.

[0057] In this embodiment, a method for processing multi-band signals is provided. The multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and a plurality of filtering devices. The output end of the signal receiving device is connected to the input ends of the plurality of filtering devices. The output ends of the plurality of filtering devices are connected to the input end of the power adjustment device. The output end of the power adjustment device is connected to the input end of the detection device. The output end of the detection device is used to transmit the processed signal to the target terminal. The control device is connected to the plurality of filtering devices, the power adjustment device, and the detection device. The signal receiving device is used to receive the initial signal of the signal with multiple frequency bands. The plurality of filtering devices correspond to the plurality of frequency bands one by one. The method is applied to the control device, and the method can also be applied to the above computer terminal. Figure 2 is a flowchart of a method for processing multi-band signals according to an embodiment of the present application, as Figure 2 shown. The process includes the following steps:

[0058] Step S202: When it is detected that the reception opportunity of the signal in the target frequency band among the plurality of frequency bands arrives, control the target filtering device corresponding to the target frequency band to filter the initial signal to obtain an intermediate signal, where the plurality of filtering devices include the target filtering device;

[0059] Step S204: Control the power adjustment device to adjust the power of the intermediate signal according to the signal power information and the power threshold of the intermediate signal to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal;

[0060] Step S206: Control the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station, where the target signal feature information is used to indicate the signal feature attribute of the target signal, the target base station feature information is used to indicate the signal feature attribute of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station;

[0061] Step S208: When it is detected that the target authenticity is higher than or equal to the authenticity threshold, control the detection device to send the target signal to the target terminal.

[0062] Through the above steps, since the multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and multiple filtering devices, the output end of the signal receiving device is connected to the input ends of the multiple filtering devices, the output ends of the multiple filtering devices are connected to the input end of the power adjustment device, the output end of the power adjustment device is connected to the input end of the detection device, the output end of the detection device is used to transmit the processed signal to the target terminal, the control device is connected to the multiple filtering devices, the power adjustment device, and the detection device, the signal receiving device is used to receive the initial signal of the signal with multiple bands, the multiple filtering devices correspond one by one to the multiple bands, by controlling the target filtering device among the multiple filtering devices corresponding to the target band to filter the initial signal when the receiving opportunity of the signal of the target band in the multiple bands is detected, an intermediate signal is obtained, the power adjustment device is controlled to adjust the power of the intermediate signal according to the signal power information for indicating the signal power of the intermediate signal and the power threshold, a target signal is obtained, the detection device is controlled to detect the target authenticity for indicating the probability that the target signal comes from the target base station according to the target signal feature information for indicating the signal feature attribute of the target signal and the target base station feature information for indicating the signal feature attribute of the signal sent by the target base station, and when the detected target authenticity is higher than or equal to the authenticity threshold, the detection device is controlled to send the target signal to the target terminal. By adopting the above technical solution, the multi-band signal is filtered by the corresponding filtering device at the corresponding opportunity, different signal bands correspond to different filters, then it is no longer necessary to complete the reception of the multi-band signal with multiple sets of device combinations, and signals of different bands are collected at different times, avoiding the mutual crosstalk between signals of different bands. In addition, after filtering the signal, the power of the signal is adjusted by combining the power information of the signal and the power threshold, avoiding the damage and influence of the abnormal power performance of the received signal caused by the interference of the pseudo base station signal and the harmonic signals of other bands on the devices of the multi-band receiving system. Finally, the probability that the received signal comes from the target base station is detected by comparing the target signal feature and the base station signal feature, further reducing the influence of the pseudo base station signal on the signal actually to be received and improving the reception efficiency of the multi-band signal. Therefore, the problem of low reception efficiency of multi-band signals in the related art is solved, and the technical effect of improving the reception efficiency of multi-band signals is achieved.

[0063] Optionally, in the embodiments of the present application, the multi-band receiving system includes, but is not limited to, receiving an initial signal with multiple frequency bands, where different frequency bands of the initial signal include, but are not limited to, carrying different information. By combining signals of different frequency bands, they can be transmitted on the same channel without interfering with each other. In order to completely receive all information sent by the base station, including, but not limited to, setting a target number of signal reception opportunities within one cycle according to the signal transmission cycle of the base station and the target number of frequency bands included in the initial signal, and each signal reception opportunity corresponds to signals of different frequency bands in the initial signal.

[0064] Optionally, in the embodiments of the present application, Figure 3 is a schematic diagram of a multi-band receiving system according to an embodiment of the present application Figure 1 , as Figure 3 shown, the multi-band receiving system includes a signal receiving device, a power adjustment device, a detection device, a control device, and multiple filtering devices. The output end of the signal receiving device is connected to the input ends of multiple filtering devices (including filtering device 1 - filtering device m), the output ends of the multiple filtering devices are connected to the input end of the power adjustment device, the output end of the power adjustment device is connected to the input end of the detection device, the control device is connected to the multiple filtering devices, the power adjustment device, and the detection device. The signal receiving device is used to receive an initial signal with multiple frequency bands, and the multiple filtering devices correspond one by one to the multiple frequency bands of the received signal.

[0065] Optionally, in the embodiments of the present application, the signal receiving device includes, but is not limited to, a full-band receiving antenna, or a multi-band receiving antenna that can receive signals of the required frequency bands.

[0066] In the embodiment provided in step S202, by filtering the initial signal with a target filtering device corresponding to the target frequency band, signals of other frequency bands in the initial signal can be filtered out, and the obtained intermediate signal is a signal of the target frequency band.

[0067] In the embodiment provided in step S204, the power threshold includes, but is not limited to, being determined according to the maximum signal power that each component in the multi-band receiving system can withstand and the signal power requirements for each component to work properly. By setting the power threshold and requiring the signal power to meet the power threshold, it can ensure that the received signal does not damage the receiving system devices while having good signal-to-noise ratio and integrity, which is beneficial for the terminal that finally receives the signal to process the signal.

[0068] Optionally, in the embodiments of the present application, controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal includes, but is not limited to, reducing the power of the intermediate signal when the signal power information is greater than or equal to the power threshold.

[0069] In the embodiment provided in step S206, the target signal feature information includes, but is not limited to, the frame structure of the target signal, and the target base station feature information includes, but is not limited to, the frame structure that the signal sent by the base station should have. By comparing the frame structure of the target signal with the frame structure that the signal sent by the base station should have, it can be determined whether the target signal is a signal from the target base station, reducing the influence of signals from fake base stations on the reception of the desired received signal.

[0070] Optionally, in the embodiment of the present application, the target signal feature information includes, but is not limited to, multiple items. At the same time, the target base station feature information includes, but is not limited to, the corresponding multiple items. In such a case, controlling the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station includes, but is not limited to, that multiple target signal feature information and multiple target base station feature information have multiple importance levels, and different importance levels correspond to different weight values. Comparing the similarity degrees of multiple target signal feature information and the corresponding target base station feature information to obtain multiple similarity values, calculating a target similarity value according to the multiple weight values corresponding to the importance levels of the multiple target signal feature information and the multiple target base station feature information and the multiple similarity values, and determining the target authenticity of the target signal according to the magnitude relationship between the target similarity value and the similarity threshold.

[0071] In the embodiment provided in step S208, when it is detected that the target authenticity is lower than the authenticity threshold, it includes, but is not limited to, sending the target signal to other signal processing devices, and the other signal processing devices will further analyze and process the signal that is greatly affected by the fake base station signal received.

[0072] Optionally, in the embodiment of the present application, Figure 4 is a schematic diagram of a multi-band receiving system according to an embodiment of the present application Figure 2 , such as Figure 4As shown, the full-band receiving antenna (i.e., the signal receiving device) receives signals in the full band. The RF switch module (corresponding to the control device) performs time-division switch reception processing on the received signals. Filters 1 - Filters n (i.e., multiple filtering devices) perform frequency-band filtering on the received signals. Coupling lines 1 - Coupling lines n couple the filtered signals to obtain the in-network signals after coupling with a corresponding relationship. The signal detection module (corresponding to the control device) judges and detects the in-network signals. The ADC module (corresponding to the control device) performs analog-to-digital conversion on the signals detected by the signal detection module. The gain adjustment module (corresponding to the power adjustment device) performs real-time gain adjustment on the in-network signals with different signal strengths. The power amplification module (corresponding to the power adjustment device) amplifies the in-network signals to ensure the recognizability of the received signals. The control unit (corresponding to the control device) performs intelligent monitoring and adjustment on the RF switch, signal detection, and gain adjustment. The hardware interface receives the in-network signals received to ensure the subsequent signal processing interface. The signal frame comparison module (i.e., the detection device) compares the frame structures of the received signals. In summary, the design of the RF switch module circuit ensures that all frequency-band signals can be received with only a single receiving antenna, reducing the antenna cost and the difficulty of installation. At the same time, the gain link after the switch module after the filter can be reused, greatly reducing the hardware design cost. The time-division transmission signal mode of the switch avoids the mutual crosstalk between different frequency bands caused by the traditional simultaneous reception of multiple frequency bands, prevents signal distortion caused by signal link mutual oscillation, makes the received signals more complete, and makes the reception of in-network signals more in line with the actual in-network situation.

[0073] As an optional implementation manner, the power adjustment device includes a gain regulator and a power amplifier;

[0074] Controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal includes:

[0075] Calculating first power information according to the signal power information and the signal amplification parameter of the power amplifier, where the first power information is used to indicate the power magnitude of the signal after the intermediate signal is power-amplified by the power amplifier;

[0076] When it is detected that the first power information is greater than the first power threshold, controlling the gain regulator to reduce the power of the intermediate signal, where the power threshold includes the first power threshold;

[0077] When it is detected that the first power information is less than the second power threshold, controlling the gain regulator to increase the power of the intermediate signal, where the power threshold includes the second power threshold, and the second power threshold is less than the first power threshold.

[0078] Optionally, in the embodiments of the present application, including but not limited to adding a control unit (i.e., a control device) and a gain adjustment module (i.e., a gain adjuster) in the receiving link, and cooperating with the power amplifier to process the power of the signal. Including but not limited to performing power detection and monitoring of signals in different frequency bands of the existing network through the algorithm of the control unit, performing link gain adjustment for signals in different frequency bands in a time-sharing manner, and performing gain attenuation through the gain adjustment module when the control unit receives a large signal (the signal power is greater than the second power threshold) to prevent the problem of compression of the received signal due to excessive gain of the gain device when receiving a large signal, and increasing the gain of the gain adjustment module when the existing network signal is small (the signal power is less than the second power threshold) so that the small signal in the space can be amplified by a larger multiple, so that the received signal has a good signal-to-noise ratio.

[0079] As an optional implementation, the control device includes a signal coupling line, a signal detector, an analog-to-digital converter and a first controller, the input end of the signal coupling line is disposed within the coupling range of the output end of the target filter device, the output end of the signal coupling line is connected to the input end of the signal detector, the output end of the signal detector is connected to the input end of the analog-to-digital converter, and the output end of the analog-to-digital converter is connected to the input end of the controller;

[0080] The controlling the power regulating device to regulate the power of the intermediate signal according to the signal power information and the power threshold of the intermediate signal comprises:

[0081] The signal coupling line collects a reference signal of the intermediate signal, wherein the reference signal corresponds to the intermediate signal one-to-one, the second power information of the reference signal corresponds to the signal power information one-to-one, and the second power information is used to indicate the signal power of the reference signal;

[0082] The signal detector extracts a reference power signal from the reference signal, wherein the reference power signal is used to indicate a change in signal power of the reference signal;

[0083] The analog-to-digital converter converts the reference power signal into a digital power signal;

[0084] The first controller detects the second power information from the digital power signal;

[0085] The first controller searches for a target gain parameter corresponding to the second power information from power information and gain parameters having a corresponding relationship, wherein the target gain parameter is used to indicate a power change of a signal after power regulation by the power regulation device;

[0086] The first controller controls the power adjustment device to adjust the power of the intermediate signal according to the target gain parameter.

[0087] Optionally, in the embodiments of the present application, the signal coupling line includes but is not limited to a coupled microstrip line, and a reference signal of the intermediate signal is collected through signal coupling by the microstrip line.

[0088] Optionally, in the embodiments of the present application, in view of the situation of multiple existing network signal frequency bands and complex existing network communication signals, a signal detection circuit (i.e., a multi-band receiving system) is designed, and a coupled microstrip line (i.e., a signal coupling line) is designed on the received signal link. The signal is coupled through the microstrip line, and after coupling, the signal is preprocessed, that is, the coupled signal is sampled and converted into a digital power by an ADC (Analog-to-Digital Converter) module (i.e., an analog-to-digital converter) and output to a control unit (i.e., the first controller) to monitor and detect the magnitude (i.e., power) of the existing network signal in real time. Then, the control unit generates a linear formula relationship between the magnitude of the signal detected by the signal detection module (i.e., the signal detector) and the gain of the gain adjustment module (i.e., the power adjustment device), so as to achieve the function of automatically adjusting the gain according to the magnitude of the existing network signal; ensure the accuracy of the received signal, and at the same time ensure that the received signal has a good signal-to-noise ratio and integrity when there are fluctuations in the existing network signal, which is beneficial to subsequent signal processing by more modules.

[0089] As an optional implementation manner, the output end of the first controller is further used to connect to the target terminal;

[0090] After the analog-to-digital converter converts the reference power signal into a digital power signal, the method further includes:

[0091] The first controller detects a fluctuation parameter of the digital power signal, where the fluctuation parameter is used to indicate the power magnitude fluctuation condition of the signal in the target frequency band;

[0092] When the first controller detects that the fluctuation parameter is greater than or equal to a fluctuation threshold, the first controller generates signal fluctuation information;

[0093] The first controller sends the signal fluctuation information to the target terminal, where the signal fluctuation information is used to prompt on the target terminal that the stability of the signal in the target frequency band does not meet the stability requirement.

[0094] Optionally, in the embodiments of the present application, after obtaining the coupled signal through the microstrip line, sampling the coupled signal and converting it into digital power and outputting it to the control unit, it is possible to monitor and detect the real-time signal magnitude of the existing network, and determine whether there are fluctuations and whether there is interference in the existing network signal in this area. When there are fluctuations in the signal in this area, the signal coupled through the microstrip line will have large power fluctuations. After ADC sampling, the sampling curve shows an upward and downward fluctuation trend. By analyzing the ADC sampling curve by the control unit, it can be determined that there are signal fluctuations in this area during the relevant time period, which is convenient for network operators or equipment operators to judge and analyze the signal stability and anti-interference ability in this area.

[0095] As an optional implementation manner, the controlling the detection device to detect the target authenticity of the target signal according to the target signal feature information and the target base station feature information of the target signal includes:

[0096] Controlling the detection device to detect the similarity between the signal frame structure of the target signal and the target frame structure of the target base station, where the similarity is used to indicate the similarity degree between the signal frame structure and the target frame structure, the target signal feature information includes the signal frame structure, and the target base station feature information includes the target frame structure;

[0097] In the case where the detected similarity is higher than or equal to the similarity threshold, it is determined that the detected target authenticity is higher than or equal to the authenticity threshold;

[0098] In the case where the detected similarity is lower than the similarity threshold, it is determined that the detected target authenticity is lower than the authenticity threshold.

[0099] Optionally, in the embodiments of the present application, the frame structure of the signal sent by the target base station and the frame structure of the signal sent by the fake base station will be different. By comparing the frame structure of the actually received signal with the known expected received base station signal frame structure, it can be determined whether the received signal is actually the signal sent by the target base station.

[0100] Optionally, in the embodiments of the present application, the subsequent signal frame comparison module (i.e., the detection device) of the hardware interface analyzes and processes the frame structures of signals in different frequency bands, and by comparing with the actual existing network frame structure, it can be determined whether there are fake signals and pseudo signals in the existing network signal.

[0101] As an optional implementation manner, the controlling the target filtering device corresponding to the target frequency band to filter the initial signal includes:

[0102] The filter link where the target filter device is located is controlled to be turned on and the filter links where other filter devices among the multiple filter devices are located are controlled to be turned off, wherein the other filter devices are filter devices among the multiple filter devices except the target filter device.

[0103] As an optional implementation, the control device includes a second controller, a first switch and a second switch;

[0104] The controlling the filter link where the target filter device is located to be turned on and controlling the filter links where other filter devices among the multiple filter devices are located to be turned off includes:

[0105] The second controller controls the first switch to connect to the input end of the target filter device and controls the second switch to connect to the output end of the target filter device.

[0106] Optionally, in an embodiment of the present application, a single full-band receiving antenna (i.e., a signal receiving device) is used, and a radio frequency signal switch (i.e., a first switch and a second switch) is used behind the receiving antenna. This ensures that all received frequency bands are processed and analyzed in a time-sharing manner with a single receiving antenna. The signal collection of each frequency band is achieved through high-speed switch switching control by the control unit (i.e., the second controller). At the same time, the link design of the signal switch solves the problems of high engineering design difficulty and high antenna cost for installing multiple antennas. At the same time, time-sharing reception does not affect the analysis of existing network signals, and time-sharing reception avoids the situation where signals generated by receiving signals of different frequency bands at the same time are coupled with each other, resulting in signal distortion. After the signal passes through the switch, it is filtered and selected for different frequency bands. After filtering, it is combined through the radio frequency signal switch, and then power amplification is performed. The reused power amplification module and gain adjustment module make the design more reusable, and the design difficulty and cost are greatly reduced. At the same time, the circuit design scheme ensures that a single hardware interface can realize signal reception and analysis of multiple frequency bands in the existing network, greatly reducing the hardware development cost of the back end.

[0107] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software and a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods of each embodiment of the present application.

[0108] Figure 5 It is a structural block diagram of a multi - band signal processing device according to an embodiment of the present application. The multi - band receiving system includes a signal receiving device, a power regulating device, a control device, a detecting device, and a plurality of filtering devices. The output end of the signal receiving device is connected to the input ends of the plurality of filtering devices. The output ends of the plurality of filtering devices are connected to the input end of the power regulating device. The output end of the power regulating device is connected to the input end of the detecting device. The output end of the detecting device is used to transmit the processed signal to the target terminal. The control device is connected to the plurality of filtering devices, the power regulating device, and the detecting device. The signal receiving device is used to receive the initial signal of the signal with multiple bands. The plurality of filtering devices correspond one - to - one with the plurality of bands. The device is applied to the control device, as Figure 5 shown, the device includes:

[0109] A filtering module 502, configured to control a target filtering device corresponding to the target band to filter the initial signal to obtain an intermediate signal when it is detected that the receiving opportunity of the signal in the target band among the plurality of bands arrives. Among them, the plurality of filtering devices include the target filtering device;

[0110] An adjusting module 504, configured to control the power regulating device to adjust the power of the intermediate signal according to the signal power information and the power threshold of the intermediate signal to obtain a target signal. Among them, the signal power information is used to indicate the signal power of the intermediate signal;

[0111] A detecting module 506, configured to control the detecting device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station. Among them, the target signal feature information is used to indicate the signal feature attribute of the target signal, the target base station feature information is used to indicate the signal feature attribute of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station;

[0112] A sending module 508, configured to control the detecting device to send the target signal to the target terminal when it is detected that the target authenticity is higher than or equal to the authenticity threshold.

[0113] Through the above embodiments, since the multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and multiple filtering devices, the output end of the signal receiving device is connected to the input ends of the multiple filtering devices, the output ends of the multiple filtering devices are connected to the input end of the power adjustment device, the output end of the power adjustment device is connected to the input end of the detection device, the output end of the detection device is used to transmit the processed signal to the target terminal, the control device is connected to the multiple filtering devices, the power adjustment device, and the detection device, the signal receiving device is used to receive the initial signal of the signal with multiple frequency bands, the multiple filtering devices correspond to the multiple frequency bands one by one, by controlling the target filtering device among the multiple filtering devices corresponding to the target frequency band to filter the initial signal when the receiving opportunity of the signal in the target frequency band among the multiple frequency bands is detected, an intermediate signal is obtained, the power adjustment device is controlled to adjust the power of the intermediate signal according to the signal power information for indicating the signal power of the intermediate signal and the power threshold to obtain a target signal, the detection device is controlled to detect the target authenticity for indicating the probability that the target signal comes from the target base station according to the target signal feature information for indicating the signal feature attribute of the target signal and the target base station feature information for indicating the signal feature attribute of the signal sent by the target base station, when the detected target authenticity is higher than or equal to the authenticity threshold, the detection device is controlled to send the target signal to the target terminal. By adopting the above technical solution, the multi-band signal is filtered by the corresponding filtering device at the corresponding opportunity, and different signal frequency bands correspond to different filters, so that it is no longer necessary to complete the reception of the multi-band signal by multiple sets of device combinations, and the signals of different frequency bands are collected at different times, avoiding the mutual crosstalk between the signals of different frequency bands. In addition, after filtering the signal, the power of the signal is adjusted by combining the power information of the signal and the power threshold, avoiding the damage and influence of the abnormal power performance of the received signal caused by the interference of the pseudo base station signal and the harmonic signals of other frequency bands on the devices of the multi-band receiving system. Finally, the probability that the received signal comes from the target base station is detected by comparing the target signal feature and the base station signal feature, further reducing the influence of the pseudo base station signal on the actually received signal and improving the reception efficiency of the multi-band signal. Therefore, the problem of low reception efficiency of multi-band signals in the related art is solved, and the technical effect of improving the reception efficiency of multi-band signals is achieved.

[0114] As an alternative embodiment, the power adjustment device includes a gain regulator and a power amplifier, and the adjustment module includes:

[0115] A calculation unit, configured to calculate first power information according to the signal power information and the signal amplification parameter of the power amplifier, where the first power information is used to indicate the power magnitude of the signal after the intermediate signal is power-amplified by the power amplifier;

[0116] A first control unit, configured to control the gain regulator to reduce the power of the intermediate signal when it is detected that the first power information is greater than a first power threshold, wherein the power threshold includes the first power threshold;

[0117] A second control unit, configured to control the gain regulator to increase the power of the intermediate signal when it is detected that the first power information is less than a second power threshold, wherein the power threshold includes the second power threshold, and the second power threshold is less than the first power threshold.

[0118] As an optional implementation manner, the control device includes a signal coupling line, a signal detector, an analog-to-digital converter, and a first controller. The input end of the signal coupling line is deployed within the coupling range of the output end of the target filtering device. The output end of the signal coupling line is connected to the input end of the signal detector. The output end of the signal detector is connected to the input end of the analog-to-digital converter. The output end of the analog-to-digital converter is connected to the input end of the controller;

[0119] The adjustment module further includes:

[0120] An acquisition unit, configured to acquire a reference signal of the intermediate signal through the signal coupling line, wherein the reference signal corresponds to the intermediate signal one by one, the second power information of the reference signal corresponds to the signal power information one by one, and the second power information is used to indicate the signal power magnitude of the reference signal;

[0121] An extraction unit, configured to extract a reference power signal from the reference signal through the signal detector, wherein the reference power signal is used to indicate the signal power change condition of the reference signal;

[0122] A conversion unit, configured to convert the reference power signal into a digital power signal through the analog-to-digital converter;

[0123] A first detection unit, configured to detect the second power information from the digital power signal through the first controller;

[0124] A search unit, configured to search for a target gain parameter corresponding to the second power information from the power information and gain parameters with a corresponding relationship through the first controller, wherein the target gain parameter is used to indicate the signal power change condition of the signal after being power-adjusted by the power adjustment device;

[0125] A third control unit, configured to control the power adjustment device to adjust the power of the intermediate signal according to the target gain parameter through the first controller.

[0126] As an alternative implementation, the output terminal of the first controller is further used to connect to the target terminal; the adjustment module further includes:

[0127] A second detection unit, configured to detect the fluctuation parameter of the digital power signal through the first controller, where the fluctuation parameter is used to indicate the power magnitude fluctuation condition of the signal in the target frequency band;

[0128] A generation unit, configured to generate signal fluctuation information through the first controller when it is detected that the fluctuation parameter is greater than or equal to a fluctuation threshold;

[0129] A sending unit, configured to send the signal fluctuation information to the target terminal through the first controller, where the signal fluctuation information is used to prompt on the target terminal that the stability of the signal in the target frequency band does not meet the stability requirement.

[0130] As an alternative implementation, the detection module includes:

[0131] A third detection unit, configured to control the detection device to detect the similarity between the signal frame structure of the target signal and the target frame structure of the target base station, where the similarity is used to indicate the similarity degree between the signal frame structure and the target frame structure, the target signal feature information includes the signal frame structure, and the target base station feature information includes the target frame structure;

[0132] A first determination unit, configured to determine that the detected target authenticity is higher than or equal to an authenticity threshold when it is detected that the similarity is higher than or equal to a similarity threshold;

[0133] A second determination unit, configured to determine that the detected target authenticity is lower than the authenticity threshold when it is detected that the similarity is lower than the similarity threshold.

[0134] As an alternative implementation, the filtering module includes:

[0135] A fourth control unit, configured to control the filtering link where the target filtering device is located to be turned on and control the filtering links where the other filtering devices among the multiple filtering devices are located to be turned off, where the other filtering devices are the filtering devices other than the target filtering device among the multiple filtering devices.

[0136] As an alternative implementation, the control device includes a second controller, a first switch, and a second switch; the fourth control unit is further configured to:

[0137] The second controller is used to control the first switch to connect to the input end of the target filtering device and control the second switch to connect to the output end of the target filtering device.

[0138] An embodiment of the present application further provides a storage medium, which includes a stored program. When the above program runs, it executes the adjustment method of any one of the above repeater operating parameters.

[0139] Optionally, in this embodiment, the above storage medium can be set to store program codes for performing the following steps: When it is detected that the reception opportunity of the signal in the target frequency band among the multiple frequency bands arrives, control the target filtering device corresponding to the target frequency band to filter the initial signal to obtain an intermediate signal, where the multiple filtering devices include the target filtering device;

[0140] Control the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal;

[0141] Control the detection device to detect the target authenticity of the target signal according to the target signal characteristic information of the target signal and the target base station characteristic information of the target base station, where the target signal characteristic information is used to indicate the signal characteristic attributes of the target signal, the target base station characteristic information is used to indicate the signal characteristic attributes of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station;

[0142] When it is detected that the target authenticity is higher than or equal to the authenticity threshold, control the detection device to send the target signal to the target terminal.

[0143] An embodiment of the present application further provides an electronic device, including a memory and a processor. A computer program is stored in the memory, and the processor is set to run the computer program to execute the steps in any one of the above embodiments of the multi-band signal processing method.

[0144] Optionally, the above electronic device may further include a transmission device and an input / output device, where the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0145] Optionally, in this embodiment, the above processor can be set to execute the following steps through a computer program: When it is detected that the reception opportunity of the signal in the target frequency band among the multiple frequency bands arrives, control the target filtering device corresponding to the target frequency band to filter the initial signal to obtain an intermediate signal, where the multiple filtering devices include the target filtering device;

[0146] Control the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal, so as to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal;

[0147] Control the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station, where the target signal feature information is used to indicate the signal feature attributes of the target signal, the target base station feature information is used to indicate the signal feature attributes of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station;

[0148] When it is detected that the target authenticity is higher than or equal to the authenticity threshold, control the detection device to send the target signal to the target terminal.

[0149] Optionally, in this embodiment, the above storage medium may include, but is not limited to: various media such as USB flash drives, read-only memories (ROM), random access memories (RAM), mobile hard disks, magnetic disks, or optical discs that can store program codes.

[0150] Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and will not be repeated here.

[0151] Obviously, those skilled in the art should understand that the above-mentioned modules or steps of the present application can be implemented by a general-purpose computing device. They can be concentrated on a single computing device or distributed on a network composed of multiple computing devices. Optionally, they can be implemented by program codes executable by the computing device, so that they can be stored in a storage device and executed by the computing device. And in some cases, the steps shown or described can be executed in a different order than here, or they can be separately made into individual integrated circuit modules, or multiple modules or steps among them can be made into a single integrated circuit module to implement. In this way, the present application is not limited to any specific combination of hardware and software.

[0152] The above is only the preferred embodiment of the present application. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present application, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present application.

Claims

1. A method for processing multi-band signals, characterized in that: The multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and a plurality of filtering devices. The output end of the signal receiving device is connected to the input ends of the plurality of filtering devices. The output ends of the plurality of filtering devices are connected to the input end of the power adjustment device. The output end of the power adjustment device is connected to the input end of the detection device. The output end of the detection device is used to transmit the processed signal to the target terminal. The control device is connected to the plurality of filtering devices, the power adjustment device, and the detection device. The signal receiving device is used to receive the initial signal of the signal with multiple bands. The plurality of filtering devices correspond to the plurality of bands one by one. The method is applied to the control device, and the method includes: When it is detected that the receiving opportunity of the signal in the target band among the plurality of bands arrives, controlling the target filtering device corresponding to the target band to filter the initial signal to obtain an intermediate signal, where the plurality of filtering devices include the target filtering device; Controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal; Controlling the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station, where the target signal feature information is used to indicate the signal feature attribute of the target signal, the target base station feature information is used to indicate the signal feature attribute of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station; When it is detected that the target authenticity is higher than or equal to the authenticity threshold, controlling the detection device to send the target signal to the target terminal.

2. The method according to claim 1, characterized in that: The power adjustment device includes a gain regulator and a power amplifier; The controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal includes: Calculating first power information according to the signal power information and the signal amplification parameter of the power amplifier, where the first power information is used to indicate the power size of the signal after the intermediate signal is power-amplified by the power amplifier; When it is detected that the first power information is greater than the first power threshold, controlling the gain regulator to reduce the power of the intermediate signal, where the power threshold includes the first power threshold; When it is detected that the first power information is less than the second power threshold, controlling the gain regulator to increase the power of the intermediate signal, where the power threshold includes the second power threshold, and the second power threshold is less than the first power threshold.

3. The method according to claim 1, characterized in that: The control device includes a signal coupling line, a signal detector, an analog-to-digital converter, and a first controller. The input end of the signal coupling line is deployed within the coupling range of the output end of the target filtering device. The output end of the signal coupling line is connected to the input end of the signal detector. The output end of the signal detector is connected to the input end of the analog-to-digital converter. The output end of the analog-to-digital converter is connected to the input end of the controller; Controlling the power adjustment device to adjust the power of the intermediate signal according to the signal power information and power threshold of the intermediate signal includes: The signal coupling line collects a reference signal of the intermediate signal, where the reference signal corresponds to the intermediate signal one by one, and the second power information of the reference signal corresponds to the signal power information one by one, and the second power information is used to indicate the signal power magnitude of the reference signal; The signal detector extracts a reference power signal from the reference signal, where the reference power signal is used to indicate the signal power change condition of the reference signal; The analog-to-digital converter converts the reference power signal into a digital power signal; The first controller detects the second power information from the digital power signal; The first controller looks up the target gain parameter corresponding to the second power information from the power information and gain parameters with a corresponding relationship, where the target gain parameter is used to indicate the power change condition of the signal after power adjustment by the power adjustment device; The first controller controls the power adjustment device to adjust the power of the intermediate signal according to the target gain parameter.

4. The method according to claim 3, wherein, The output end of the first controller is further used to connect to the target terminal; After the analog-to-digital converter converts the reference power signal into a digital power signal, the method further includes: The first controller detects a fluctuation parameter of the digital power signal, where the fluctuation parameter is used to indicate the power magnitude fluctuation condition of the signal in the target frequency band; The first controller generates signal fluctuation information when detecting that the fluctuation parameter is greater than or equal to a fluctuation threshold; The first controller sends the signal fluctuation information to the target terminal, where the signal fluctuation information is used to prompt on the target terminal that the stability of the signal in the target frequency band does not meet the stability requirement.

5. The method according to claim 1, wherein, Controlling the detection device to detect the target authenticity of the target signal according to the target signal feature information and target base station feature information of the target signal includes: Controlling the detection device to detect the similarity between the signal frame structure of the target signal and the target frame structure of the target base station, where the similarity is used to indicate the similarity degree between the signal frame structure and the target frame structure, the target signal feature information includes the signal frame structure, and the target base station feature information includes the target frame structure; In the case where it is detected that the similarity is higher than or equal to the similarity threshold, it is determined that the detected target authenticity is higher than or equal to the authenticity threshold; In the case where it is detected that the similarity is lower than the similarity threshold, it is determined that the detected target authenticity is lower than the authenticity threshold.

6. The method according to claim 1, wherein controlling the target filtering device corresponding to the target frequency band to filter the initial signal includes: controlling the filtering link where the target filtering device is located to be turned on and controlling the filtering links where the other filtering devices among the multiple filtering devices are located to be turned off, where the other filtering devices are the filtering devices other than the target filtering device among the multiple filtering devices.

7. The method according to claim 6, wherein the control device includes a second controller, a first switch, and a second switch; controlling the filtering link where the target filtering device is located to be turned on and controlling the filtering links where the other filtering devices among the multiple filtering devices are located to be turned off includes: the second controller controls the first switch to connect to the input end of the target filtering device and controls the second switch to connect to the output end of the target filtering device.

8. A processing device for multi-band signals, wherein the multi-band receiving system includes a signal receiving device, a power adjustment device, a control device, a detection device, and multiple filtering devices. The output end of the signal receiving device is connected to the input ends of the multiple filtering devices. The output ends of the multiple filtering devices are connected to the input end of the power adjustment device. The output end of the power adjustment device is connected to the input end of the detection device. The output end of the detection device is used to transmit the processed signal to the target terminal. The control device is connected to the multiple filtering devices, the power adjustment device, and the detection device. The signal receiving device is used to receive the initial signal of the signal with multiple frequency bands. The multiple filtering devices correspond to the multiple frequency bands one by one. The device is applied to the control device. The device includes: a filtering module, configured to, in the case where it is detected that the reception opportunity of the signal of the target frequency band among the multiple frequency bands arrives, control the target filtering device corresponding to the target frequency band to filter the initial signal to obtain an intermediate signal, where the multiple filtering devices include the target filtering device; an adjustment module, configured to control the power adjustment device to adjust the power of the intermediate signal according to the signal power information and the power threshold of the intermediate signal to obtain a target signal, where the signal power information is used to indicate the signal power of the intermediate signal; a detection module, configured to control the detection device to detect the target authenticity of the target signal according to the target signal feature information of the target signal and the target base station feature information of the target base station, where the target signal feature information is used to indicate the signal feature attribute of the target signal, the target base station feature information is used to indicate the signal feature attribute of the signal sent by the target base station, and the target authenticity is used to indicate the probability that the target signal comes from the target base station; A sending module, configured to control the detection device to send the target signal to the target terminal when it is detected that the authenticity of the target is higher than or equal to an authenticity threshold.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein the program, when running, executes the method according to any one of claims 1 to 7.

10. An electronic device, comprising a memory and a processor, characterized in that, A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 7 through the computer program.

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