Antenna transceiving channel assembly and signal processing method, device and equipment thereof and medium

Abstract

The application belongs to the technical field of microwave radio frequency components, and provides an antenna transceiving channel component, a signal processing method and device thereof, equipment and a medium, which are used for improving channel resource utilization and reducing hardware cost at the same time. According to a user-determined working mode, a target reference channel is determined, and the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array are calibrated based on the user-determined working mode and the target reference channel. In this way, the antenna transceiving channel component can multiplex the transmitting channel and the receiving channel according to different working modes, complete the up-conversion and down-conversion functions and the channel calibration function, so as to improve the resource utilization of the frequency conversion channel and reduce the hardware cost.

Description

Technical Field

[0001] This invention relates to the field of microwave radio frequency components technology, and more specifically, to an antenna transceiver channel component and its signal processing method, apparatus, device, and medium. Background Technology

[0002] The phased array antenna transceiver channel component is the connection hub between the phased array antenna and the processing terminal.

[0003] However, in the existing architecture of antenna transceiver channel components, each function has its own dedicated channel. Furthermore, due to time-division multiplexing among the various antenna functions, a large number of channels in the transceiver channel components remain idle, resulting in low channel resource utilization. Moreover, the existing architecture of antenna transceiver channel components requires the design of additional calibration networks and dedicated high-frequency calibration sources to calibrate the channels, further increasing hardware costs. Summary of the Invention

[0004] The present invention aims to provide an antenna transceiver channel component and its signal processing method, apparatus, device and medium to solve the problems of low channel resource utilization and high cost in the existing architecture of antenna transceiver channel components.

[0005] In a first aspect, this application provides an antenna transceiver channel component, including a frequency source, an up-conversion channel, a multiplexing network, multiple down-conversion channels, and corresponding multiple radio frequency AGC units and multiple intermediate frequency AGC units; The output of the frequency source is electrically connected to the local oscillator port of the mixer for the up-conversion channel and multiple down-conversion channels. The upconversion channel is electrically connected to the output terminal of the corresponding intermediate frequency AGC unit and the input terminal of the radio frequency AGC unit; Multiple downconversion channels are electrically connected to the input terminals of the corresponding intermediate frequency AGC units and the output terminals of the radio frequency AGC units; The multiplexing network is electrically connected to multiple radio frequency AGC units and multiple intermediate frequency AGC units respectively.

[0006] In one possible implementation, the frequency source is used to provide a stable local oscillator signal and a calibration intermediate frequency signal; the upconversion channel is used to perform upconversion operation; and the downconversion channel is used to perform downconversion operation. The multiplexing network is used to switch the switch according to the user-defined working mode to achieve channel calibration function; The RF AGC unit is used to adjust the RF channel gain; the IF AGC unit is used to adjust the IF channel gain.

[0007] In one possible implementation, the frequency source includes a calibration unit, a switching matrix unit, and a control unit; wherein, the control unit controls the corresponding unit to output the corresponding signal based on the user-defined operating mode, the calibration unit is used to output a calibration intermediate frequency signal, and the switching matrix unit is used to output a stable local oscillator signal.

[0008] One possible implementation is that both the upconversion channel and the downconversion channel adopt a superheterodyne double-conversion structure, which can realize upconversion from L-band to K-band.

[0009] Secondly, this application provides a signal processing method applied to an antenna transceiver channel component as described in the first aspect, the method comprising: In response to the user-defined operating mode, a target reference channel is determined; wherein the operating mode is either normal transmit / receive mode or calibration mode, and the calibration mode includes any one of calibration receive mode, calibration transmit mode and channel self-calibration mode; the normal transmit / receive mode is used to receive and transmit signals normally, and the target reference channel is used to provide a reference signal for calibration error; Based on the aforementioned operating mode and target reference channel, the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array are calibrated.

[0010] One possible implementation involves determining a target reference channel in response to a user-defined operating mode, including: determining the target reference channel as a first preset downconversion channel in response to the operating mode being a calibration receiving mode; When the operating mode is calibration transmit mode, the target reference channel is determined to be the upconversion channel; When the operating mode is channel self-calibration mode, the target reference channel is determined to be the up-conversion channel.

[0011] One possible implementation involves calibrating the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array based on the operating mode and the target reference channel, including: When the operating mode is calibration receiving mode and the target reference channel is a preset down-conversion channel, the calibration intermediate frequency signal generated by the frequency source is up-converted into an RF calibration signal by multiplexing the up-conversion channel, which is used as the calibration transmitting channel. The amplitude and phase characteristics of the upconversion channel in the phased array antenna are calibrated based on the radio frequency calibration signal and the signal of the target reference channel. When the operating mode is calibration transmission mode and the target reference channel is an up-conversion channel, the radio frequency calibration signal entering the multiplexing network is down-converted into an intermediate frequency calibration signal by multiplexing the second preset down-conversion channel, which is used as the calibration receiving channel. The intermediate frequency calibration signal is output to the back-end processing unit to calibrate the amplitude and phase characteristics of each down-conversion channel in the phased array antenna array. When the operating mode is channel self-calibration mode and the target reference channel is an up-conversion channel, the radio frequency calibration signal of the multiplexed network is down-converted to the corresponding intermediate frequency calibration signal by multiplexing all down-conversion channels of the calibration receiving channel. All intermediate frequency calibration signals are output to the back-end processing unit, so that the back-end processing unit can adjust the circuit parameters of the AGC unit corresponding to each channel based on the preset number of intermediate frequency calibration signals, so as to realize the self-calibration of the up-conversion channel and each down-conversion channel.

[0012] Thirdly, this application provides a signal processing apparatus, comprising: The acquisition module is used to determine the target reference channel in response to the operating mode determined by the user; wherein the operating mode includes any one of calibration receive mode, calibration transmit mode and channel self-calibration mode, and the target reference channel is used to provide a reference signal for calibration error; The processing module is used to calibrate the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array based on the operating mode and the target reference channel.

[0013] Fourthly, this application provides an electronic device comprising: a processor and a memory; the memory storing processor-executable instructions; when the processor is configured to execute the instructions, causing the electronic device to implement the method of the second aspect described above.

[0014] Fifthly, this application provides a computer-readable storage medium comprising: computer software instructions; which, when executed in a computer, cause the computer to implement the method described in the second aspect.

[0015] The technical solution provided in this application offers at least the following advantages: By determining the target reference channel through a user-defined operating mode, and based on the user-defined operating mode and target reference channel, the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna are calibrated. Thus, this embodiment of the application, by enabling the antenna transceiver channel components to operate according to different operating modes, can reuse the transmit and receive channels to complete up-conversion, down-conversion, and channel calibration functions, expanding the functionality of the frequency conversion channels and thereby improving the resource utilization of the frequency conversion channels. Furthermore, it achieves channel calibration without using additional calibration hardware, thereby reducing hardware costs. Attached Figure Description

[0016] Figure 1 A schematic diagram of the architecture of an antenna transceiver channel component provided in an embodiment of this application; Figure 2 This is a schematic diagram of a secondary frequency conversion structure provided in an embodiment of this application; Figure 3A functional schematic diagram of a frequency source provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of an antenna transceiver channel component provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of a downconversion channel provided in an embodiment of this application; Figure 6 A schematic flowchart of a signal processing method provided in an embodiment of this application; Figure 7 This is a schematic diagram of the composition of a signal processing device provided in an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0017] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0018] To facilitate a clear description of the technical solutions of the embodiments of this application, the terms "first" and "second" are used in the embodiments of this application to distinguish the same or similar items with essentially the same function and effect. Those skilled in the art can understand that the terms "first" and "second" are not intended to limit the quantity or execution order.

[0019] Furthermore, the terms "comprising" and "having," and any variations thereof, used in the description of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include other steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0020] In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0021] Phased array antennas are widely used in satellite, mobile, and airborne communications. The phased array antenna transceiver channel component is the connection hub between the phased array antenna and the processing terminal.

[0022] Generally speaking, the main function of the phased array antenna transceiver channel component in the field of communication is to complete the up-conversion and down-conversion between the terminal and the phased array antenna. That is, the phased array antenna transmitting channel up-converts the baseband signal to radio frequency and forwards it to the phased array antenna; while the receiving channel is responsible for receiving the echo signal from the phased array antenna, completing the radio frequency down-conversion of the signal and forwarding it to the baseband.

[0023] To improve the target sensing capability of phased array antennas, the phased array antenna channel employs multi-channel transceiver, generally divided into sum and receive channels and differential receive channels. The sum receive channel is used to obtain the target's range, while the two differential receive channels are used to obtain the target's azimuth and elevation information, respectively, thereby determining the spatial location of the target and fulfilling the communication sensing function of the phased array antenna. Simultaneously, to enhance the adaptability of phased array antennas to complex environments, they often employ internal calibration. This requires adding calibration transmit and receive channels within the phased array antenna transceiver channel assembly. By calibrating the transceiver channels, the amplitude and phase of the phased array antenna surface can be kept consistent under different environments and the influence of different radomes, achieving better beamforming effects; this also enables the detection of the phased array antenna's operating status. Furthermore, the phased array antenna transceiver channel assembly additionally needs to possess functions such as power control, fast frequency switching, digital AGC, and dynamic adjustment to improve the communication quality and performance of the phased array antenna.

[0024] However, in the existing architecture of antenna transceiver channel components, the channels in the antenna transceiver channel components typically only have a single up / down conversion function and do not support calibration functions between the conversion channel itself and the antenna. That is, each function has its own dedicated channel, resulting in a large number of channels; in addition, the various functions of the antenna are time-division multiplexed, leaving a large number of channels in the transceiver channel component in an idle state, which causes a great waste of channel component resources, and also results in complex hardware and low reliability.

[0025] Furthermore, in the traditional channel component architecture, additional calibration networks and dedicated high-frequency calibration sources are required, which further increases the complexity and cost of hardware construction, greatly wastes valuable equipment structure space, makes it difficult to miniaturize, and makes it difficult to meet the application requirements of integration and miniaturization.

[0026] Figure 1 This is a schematic diagram of the architecture of an antenna transceiver channel component provided in an embodiment of this application. Figure 2 This is a schematic diagram of a secondary frequency conversion structure provided in an embodiment of this application. Figure 3 This is a functional diagram of a frequency source provided in an embodiment of this application. Figure 4 This is a schematic diagram of the structure of an antenna transceiver channel component provided in an embodiment of this application. Figure 5 This is a schematic diagram of a downconversion channel provided in an embodiment of this application. (Combined with...) Figures 1 to 5 As shown, in view of the above-mentioned technical problems, an antenna transceiver channel component provided in the embodiments of this application will be described: like Figure 1As shown in the embodiment of this application, an antenna transceiver channel component includes a frequency source 1, an upconversion channel 2, a multiplexing network 6, multiple downconversion channels 3 (i.e., N downconversion channels, where N is an integer and N>2), multiple radio frequency AGC (Automatic Gain Control) units 4 (i.e., N+1 radio frequency AGCs 4), and multiple intermediate frequency AGC units 5 (i.e., N+1 intermediate frequency AGC units 5).

[0027] The output of frequency source 1 is electrically connected to the local oscillator port of the mixer of upconversion channel 2 and multiple downconversion channels 3; upconversion channel 2 is electrically connected to the output of the corresponding intermediate frequency AGC unit 5 and the input of the radio frequency AGC unit 4; multiple downconversion channels 3 are electrically connected to the input of the corresponding intermediate frequency AGC unit 5 and the output of the radio frequency AGC unit 4; and multiplexing network 6 is electrically connected to multiple radio frequency AGC units and multiple intermediate frequency AGC units 5 of unit 4.

[0028] In one possible implementation, frequency source 1 is used to provide a stable local oscillator signal and a calibrated intermediate frequency signal.

[0029] In one possible implementation, the upconversion channel 2 is used to perform upconversion operation; the downconversion channel 3 is used to perform downconversion operation.

[0030] For example, such as Figure 2 As shown, both the upconversion channel and the downconversion channel adopt a superheterodyne double-conversion structure, which can realize upconversion from L-band to K-band, thereby effectively suppressing spurious signals. The suppression of out-of-band clutter can reach -60dBm, and the output power is adjustable.

[0031] In one possible implementation, the multiplexing network 6 is used to switch the switch according to the operating mode determined by the user to realize the channel calibration function.

[0032] In one possible implementation, the RF AGC unit 4 is used to adjust the RF channel gain; the IF AGC unit 5 is used to adjust the IF channel gain.

[0033] In one possible implementation, the frequency source 1 includes a calibration unit, a switching matrix unit, and a control unit; wherein, the control unit controls the corresponding unit to output the corresponding signal based on the user-defined operating mode, the calibration unit is used to output a calibration intermediate frequency signal, and the switching matrix unit is used to output a stable local oscillator signal.

[0034] For example, such as Figure 3 As shown, frequency source 1 includes a reference processing unit, a frequency synthesizer unit, a control unit, a switch matrix unit, and a calibration unit. The reference processing unit is electrically connected to the frequency synthesizer unit, the control unit, the switch matrix unit, and the calibration unit.

[0035] In this system, frequency source 1 needs to output a stable frequency signal and meet spurious suppression requirements. The reference signal enters the reference processing unit for amplification and filtering, and then the power is distributed to the other units. The frequency synthesizer unit receives the processed reference signal and internally generates stable high and low local oscillator signals, which are output externally through the switching matrix unit. At the same time, the lock signal is sent back to the control unit. The control unit converts the externally input control signal, sends instructions to the frequency synthesizer module or calibration module to complete the configuration, and sends a control code to the switching matrix unit to complete the working mode switching. When the calibration unit is working in calibration mode, it outputs an intermediate frequency calibration signal. Based on this typical implementation, the frequency switching time of frequency source 1 is ≤25ns, the local oscillator signal output power is greater than 15dBm, and the spurious suppression is ≥70dBc.

[0036] In summary, the high and low local oscillator outputs of frequency source 1 are connected to the mixer local oscillator ports of upconversion channel 2 and N downconversion channels 3, outputting local oscillator signals for upconversion and downconversion, while simultaneously providing a reference intermediate frequency signal, which is output externally through multiplexing network 6. The upconversion channel 2 is connected to the output of intermediate frequency AGC unit 5 and the input of radio frequency AGC unit 4, upconverting the transmitted intermediate frequency signal to the transmitted radio frequency signal. The N downconversion channels 3 are connected to the input of intermediate frequency AGC unit 5 and the output of radio frequency AGC unit 4, downconverting the received radio frequency signal to the received intermediate frequency signal. The N+1 radio frequency AGC units 4 and N+1 intermediate frequency AGC units 5 are connected to multiplexing network 6 and the upconversion and downconversion channels for adjusting channel gain. The multiplexing network 6 is connected to the input / output of intermediate frequency AGC unit 5 and the output / input of radio frequency AGC unit 4, and can switch the network according to different operating modes to complete upconversion, downconversion, channel calibration, and other functions.

[0037] Thus, by controlling the on / off state of the switches in the multiplexing network 6, the antenna transceiver channel components can multiplex the transmit and receive channels according to different operating modes, and complete up / down conversion and channel calibration functions, thereby improving the resource utilization of the frequency conversion channel and realizing the channel calibration function without using additional calibration hardware, thereby reducing hardware costs.

[0038] Taking a four-channel transceiver channel assembly as an example, the antenna transceiver channel assembly provided in this application embodiment can save more than 30% of equipment design space, greatly reducing costs.

[0039] In one possible implementation, such as Figure 4As shown, the antenna transceiver channel assembly adopts a two-sided layout, with hollowed-out metal cavities on both sides. A multi-layer PCB board is located on the top of the metal cavity; the frequency conversion channel is located at the bottom of the metal cavity, and microstrip sheets and several RF chips are bonded inside the channel. The chips and microstrip sheets are bonded together with gold wires and interconnected by insulators. Its advantage lies in avoiding crosstalk between low-frequency and RF signals.

[0040] In one possible implementation, such as Figure 5 As shown, the N-channel downconversion channels are divided into sum and difference receiving channels, with identical structures. In this application example, there are three receiving channels: sum, difference, and difference. The receiving channel integrates an amplifier, mixer, filter, and temperature-compensated attenuator. The amplitude and phase consistency of the channel directly affects the measurement accuracy of the phased array antenna. Ensuring amplitude and phase consistency mainly involves three aspects: components, assembly process, and debugging. Therefore, the number, type, channel layout, and trace length of the components in the receiving channel are kept consistent. At the same time, during assembly, components from the same batch are selected as much as possible and processed according to the given process flow to avoid channel inconsistencies caused by differences in the components themselves. Simulation software is used extensively in the early design to optimize the circuit and minimize the debugging work in the later stages. High and low temperatures also affect the consistency of the channel. The gain of the amplifier will change at different temperatures, so a temperature compensation chip needs to be added to the channel to ensure that the channel gain remains consistent at different temperatures.

[0041] The following description, in conjunction with the accompanying drawings, details a signal processing method provided in an embodiment of this application.

[0042] Figure 6 This is a schematic flowchart illustrating a signal processing method provided in an embodiment of this application. (In conjunction with...) Figure 6 The signal processing method provided in the embodiments of this application will be described below: S101. In response to the user-defined operating mode, determine the target reference channel.

[0043] The operating mode is either normal transmit / receive mode or calibration mode. The calibration mode includes any one of calibration receive mode, calibration transmit mode, and channel self-calibration mode. The normal transmit / receive mode is used to receive and transmit signals normally, and the target reference channel is used to provide a reference signal for calibration error.

[0044] In one possible implementation, in response to the operating mode being calibration receive mode, the target reference channel is determined to be a first preset downconversion channel; in response to the operating mode being calibration transmit mode, the target reference channel is determined to be an upconversion channel; in response to the operating mode being channel self-calibration mode, the target reference channel is determined to be an upconversion channel.

[0045] In one possible implementation, in response to the transmit mode in the normal transmit / receive mode, the generated transmit intermediate frequency signal is adjusted in gain by the intermediate frequency AGC unit, and then the upconversion channel uses the local oscillator signal of the frequency source for secondary upconversion to convert it into a transmit radio frequency signal. The power is then adjusted by the radio frequency AGC unit, and the power-adjusted transmit radio frequency signal is output to the phased array antenna through the multiplexing network.

[0046] In one possible implementation, in response to the receiving mode in the normal transceiver mode, the received RF signal is adjusted in gain by the RF AGC unit, and then the N downconversion channels use the local oscillator signal of the frequency source for secondary downconversion to convert it into a received intermediate frequency signal. The gain is then adjusted by the intermediate frequency AGC unit, and the power-adjusted received intermediate frequency signal is output to the baseband system through the multiplexing network for extracting target information.

[0047] S102. Based on the operating mode and target reference channel, calibrate the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array.

[0048] In one possible implementation, in response to the operating mode being calibration receive mode and the target reference channel being a preset downconversion channel, the calibration intermediate frequency signal generated by the frequency source is upconverted into an radio frequency calibration signal by multiplexing the upconversion channel, which is used as the calibration transmit channel.

[0049] Furthermore, based on the RF calibration signal and the signal of the target reference channel, the amplitude and phase characteristics of the upconversion channel in the phased array antenna are calibrated.

[0050] In one possible implementation, in response to the operating mode being calibration transmit mode and the target reference channel being an upconversion channel, the radio frequency calibration signal entering the multiplexing network is downconverted into an intermediate frequency calibration signal by multiplexing a second preset downconversion channel, which is then used as a calibration receive channel.

[0051] Furthermore, the intermediate frequency calibration signal is output to the back-end processing unit to calibrate the amplitude and phase characteristics of each down-conversion channel in the phased array antenna array.

[0052] In one possible implementation, in response to the operating mode being channel self-calibration mode and the target reference channel being an up-conversion channel, the radio frequency calibration signal of the multiplexed network is down-converted to the corresponding intermediate frequency calibration signal by multiplexing all down-conversion channels of the calibration receiving channel.

[0053] Furthermore, all intermediate frequency calibration signals are output to the back-end processing unit so that the back-end processing unit can adjust the AGC circuit parameters corresponding to each channel based on a preset number of intermediate frequency calibration signals, such as three channels, in order to achieve self-calibration of the up-conversion channel and each down-conversion channel.

[0054] In this embodiment, the calibration channel is reused for both receiving and transmitting channels. By selecting the corresponding channel to receive or transmit calibration signals to the phased array antenna, the amplitude and phase characteristics of each frequency conversion channel on the array are calibrated to ensure normal antenna operation. This effectively utilizes the layout space, thereby improving resource utilization, reducing the number of channels and module size, and lowering costs. Furthermore, it enhances module integration, optimizes the assembly process, and facilitates later debugging.

[0055] In some embodiments, this application also provides a signal processing apparatus. The signal processing apparatus may include one or more functional modules for implementing the signal processing methods of the above method embodiments.

[0056] For example, Figure 7 This is a schematic diagram illustrating the composition of a signal processing device provided in an embodiment of this application. Figure 7 As shown, the signal processing device includes an acquisition module 201 and a processing module 202.

[0057] The acquisition module 201, in response to the operating mode determined by the user, determines the target reference channel; wherein the operating mode includes any one of calibration receive mode, calibration transmit mode and channel self-calibration mode, and the target reference channel is used to provide a reference signal for calibration error.

[0058] The processing module 202 is used to calibrate the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array based on the operating mode and the target reference channel.

[0059] In some embodiments, the processing module 202 is specifically configured to determine the target reference channel as a first preset downconversion channel in response to the operating mode being calibration receiving mode; When the operating mode is calibration transmit mode, the target reference channel is determined to be the upconversion channel; When the operating mode is channel self-calibration mode, the target reference channel is determined to be the up-conversion channel.

[0060] In some embodiments, the processing module 202 is specifically used to, in response to the working mode being calibration receiving mode and the target reference channel being a preset downconversion channel, upconvert the calibration intermediate frequency signal generated by the frequency source into a radio frequency calibration signal by multiplexing the upconversion channel which is used as the calibration transmitting channel; The amplitude and phase characteristics of the upconversion channel in the phased array antenna are calibrated based on the radio frequency calibration signal and the signal of the target reference channel. When the operating mode is calibration transmission mode and the target reference channel is an up-conversion channel, the radio frequency calibration signal entering the multiplexing network is down-converted into an intermediate frequency calibration signal by multiplexing the second preset down-conversion channel, which is used as the calibration receiving channel. The intermediate frequency calibration signal is output to the back-end processing unit to calibrate the amplitude and phase characteristics of each down-conversion channel in the phased array antenna array. When the operating mode is channel self-calibration mode and the target reference channel is an up-conversion channel, the radio frequency calibration signal of the multiplexed network is down-converted to the corresponding intermediate frequency calibration signal by multiplexing all down-conversion channels of the calibration receiving channel. All the intermediate frequency calibration signals are output to the back-end processing unit, so that the back-end processing unit adjusts the AGC circuit parameters corresponding to each channel based on a preset number of intermediate frequency calibration signals, so as to realize self-calibration of the up-conversion channel and each down-conversion channel.

[0061] Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device includes: a processor 302, a communication interface 303, and a bus 304. Optionally, the electronic device may also include a memory 301.

[0062] Processor 302 may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 302 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the disclosure of this application. Processor 302 may also be a combination of functions implementing computing capabilities, such as a combination including CPU0 and CPU1, a DSP, and a microprocessor.

[0063] The communication interface 303 includes a receiving unit and a transmitting unit, and is used to connect with other devices via a communication network. This communication network can be Ethernet, a wireless access network, a wireless local area network (WLAN), etc.

[0064] The memory 301 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and instructions, random access memory (RAM) or other type of dynamic storage device capable of storing information and instructions, or electrically erasable programmable read-only memory (EEPROM), disk storage medium or other magnetic storage device, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and accessible by a computer, but is not limited thereto.

[0065] As one possible implementation, the memory 301 can exist independently of the processor 302. The memory 301 can be connected to the processor 302 via a bus 304 and is used to store instructions or program code. When the processor 302 calls the instructions or program code stored in 301, it can implement the signal processing method provided in this embodiment of the invention.

[0066] In another possible implementation, the memory 301 can also be integrated with the processor 302.

[0067] Bus 304 can be an extended industry standard architecture (EISA) bus, etc. Bus 304 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0068] Through the above description of the implementation methods, those skilled in the art can clearly understand that, for the sake of convenience and brevity, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the service calling device can be divided into different functional modules to complete all or part of the functions described above.

[0069] This application also provides a computer-readable storage medium. All or part of the processes in the above method embodiments can be executed by computer instructions instructing related hardware. The program can be stored in the aforementioned computer-readable storage medium, and when executed, it can include the processes of the above method embodiments. The computer-readable storage medium can be any of the foregoing embodiments or memory. The aforementioned computer-readable storage medium can also be an external storage device of the aforementioned service invocation device, such as a plug-in hard drive, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the aforementioned service invocation device. Further, the aforementioned computer-readable storage medium can include both internal storage units of the aforementioned service invocation device and external storage devices. The aforementioned computer-readable storage medium is used to store the aforementioned computer program and other programs and data required by the aforementioned service invocation device. The aforementioned computer-readable storage medium can also be used to temporarily store data that has been output or will be output.

[0070] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An antenna transceiver channel assembly, characterized in that, include: Frequency source, upconversion channel, multiplexing network, multiple downconversion channels, and corresponding multiple RF AGC units and multiple IF AGC units; The output terminal of the frequency source is electrically connected to the local oscillator port of the mixer of the up-conversion channel and the plurality of down-conversion channels; The upconversion channel is electrically connected to the output terminal of the corresponding intermediate frequency AGC unit and the input terminal of the radio frequency AGC unit; The plurality of downconversion channels are electrically connected to the input terminal of the corresponding intermediate frequency AGC unit and the output terminal of the radio frequency AGC unit; The multiplexing network is electrically connected to the plurality of radio frequency AGC units and the plurality of intermediate frequency AGC units, respectively.

2. The antenna transceiver channel assembly according to claim 1, characterized in that, The frequency source is used to provide a stable local oscillator signal and a calibrated intermediate frequency signal; The upconversion channel is used for upconversion operation; the downconversion channel is used for downconversion operation. The multiplexing network is used to switch the switch according to the working mode determined by the user to realize the channel calibration function; The radio frequency AGC unit is used to adjust the radio frequency channel gain; the intermediate frequency AGC unit is used to adjust the intermediate frequency channel gain.

3. The antenna transceiver channel assembly according to claim 2, characterized in that, The frequency source includes a calibration unit, a switching matrix unit, and a control unit; The control unit controls the corresponding unit to output the corresponding signal based on the working mode determined by the user. The calibration unit is used to output the calibration intermediate frequency signal, and the switching matrix unit is used to output the stable local oscillator signal.

4. The antenna transceiver channel assembly according to claim 1, characterized in that, Both the up-conversion channel and the down-conversion channel adopt a superheterodyne double-conversion structure, which can realize up-conversion from L-band to K-band.

5. A signal processing method, characterized in that, Applied to an antenna transceiver channel assembly according to any one of claims 1 to 4, the method includes: In response to the user-defined operating mode, a target reference channel is determined; wherein, the operating mode is a normal transmit / receive mode or a calibration mode, the calibration mode includes any one of a calibration receive mode, a calibration transmit mode, and a channel self-calibration mode, the normal transmit / receive mode is used for normal signal reception and transmission, and the target reference channel is used to provide a reference signal for calibration error; Based on the operating mode and the target reference channel, the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna are calibrated.

6. The signal processing method according to claim 5, characterized in that, The process of determining the target reference channel in response to a user-defined operating mode includes: When the operating mode is calibration receiving mode, the target reference channel is determined to be the first preset downconversion channel; When the operating mode is calibration transmission mode, the target reference channel is determined to be an upconversion channel; When the operating mode is channel self-calibration mode, the target reference channel is determined to be the up-conversion channel.

7. The signal processing method according to claim 6, characterized in that, The calibration of the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array based on the operating mode and the target reference channel includes: When the operating mode is calibration receiving mode and the target reference channel is a preset down-conversion channel, the calibration intermediate frequency signal generated by the frequency source is up-converted into an radio frequency calibration signal by multiplexing the up-conversion channel, which is used as the calibration transmitting channel. Based on the radio frequency calibration signal and the signal of the target reference channel, the amplitude and phase characteristics of the upconversion channel in the phased array antenna array are calibrated. In response to the operating mode being calibration transmission mode and the target reference channel being an up-conversion channel, the radio frequency calibration signal entering the multiplexing network is down-converted into an intermediate frequency calibration signal by multiplexing a second preset down-conversion channel, which is then used as a calibration receiving channel. The intermediate frequency calibration signal is output to the back-end processing unit to calibrate the amplitude and phase characteristics of each down-conversion channel in the phased array antenna array. In response to the operating mode being channel self-calibration mode and the target reference channel being the up-conversion channel, the radio frequency calibration signal of the multiplexed network is down-converted to the corresponding intermediate frequency calibration signal by multiplexing all down-conversion channels of the calibration receiving channel. All the intermediate frequency calibration signals are output to the back-end processing unit, so that the back-end processing unit adjusts the circuit parameters of the AGC unit corresponding to each channel based on a preset number of intermediate frequency calibration signals, so as to realize self-calibration of the up-conversion channel and each down-conversion channel.

8. A signal processing apparatus, characterized in that, include: The acquisition module is used to determine a target reference channel in response to a user-defined operating mode; wherein the operating mode includes any one of a calibration receive mode, a calibration transmit mode, and a channel self-calibration mode, and the target reference channel is used to provide a reference signal for calibration error; The processing module is used to calibrate the amplitude and phase characteristics of each frequency conversion channel in the phased array antenna array based on the operating mode and the target reference channel.

9. An electronic device, characterized in that, It includes a processor and a memory, the processor being coupled to the memory; the memory is used to store computer instructions, which are loaded and executed by the processor to enable the computer device to perform the method as described in any one of claims 5 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes computer-executable instructions that, when executed on a computer, cause the computer to perform the method of any one of claims 5 to 7.

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