Multi-channel Synchronous Receiving Device and System

Abstract

The present disclosure relates to a multi-channel synchronous receiving device and system. The device includes a control module, a transmitting antenna, a first test module, and N second test modules. The control module is configured to control the transmitting antenna to emit a test signal for testing M antennas. The first test module is electrically connected to the control module and is configured to receive the test signal and obtain the amplitude and phase of the test signal. The i-th second test module is electrically connected to the control module and the first test module and is configured to: receive the antenna signals of k antennas among the M antennas and the amplitude and phase of the test signal; and respectively determine the amplitude and phase of the antenna signals of the k antennas relative to the test signal according to the amplitude and phase of the test signal. The multi-channel synchronous receiving device proposed in the embodiments of the present disclosure has the characteristic of being scalable, can test multiple antennas, and for a large-scale multi-beam array antenna system, multiple second test modules can be set to adapt to the change in the number of antennas to be tested.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technology, and in particular to a multi-channel synchronous receiving device and system. Background Art

[0002] With the maturity of beamforming technology and the development of 5G applications, more and more communication and radar systems are adopting multi-beam antenna technology. Multi-beam antenna technology can form multiple independent transmit or receive beams simultaneously or in time through a phased array, achieving flexible control of beam shape and rapid switching of beam pointing. Modern multi-beam antenna systems are even deployed with hundreds of antennas, modulating their respective beams for dozens of target receivers, and transmitting dozens of signals simultaneously on the same frequency resource through spatial signal isolation. This full exploitation of spatial resources can effectively utilize precious and scarce frequency band resources and increase network capacity by dozens of times.

[0003] A huge challenge for multi-beam array antenna systems is that they have high requirements for the phase and amplitude consistency of multiple antennas in the system. Phase and amplitude errors will directly affect the performance of the entire system. Therefore, they must be measured with high precision and then calibrated to ensure the system's transmission and reception performance. Summary of the invention

[0004] In view of this, the present disclosure proposes a multi-channel synchronous receiving device, the device comprising a control module, a transmitting antenna, a first test module, and N second test modules, where N is an integer greater than or equal to 1, wherein:

[0005] The control module is used to control the transmitting antenna to send a test signal to test M antennas, where M is an integer greater than 1;

[0006] The first test module is electrically connected to the control module, and is used to receive the test signal and obtain the amplitude and phase of the test signal;

[0007] The i-th second test module is electrically connected to the control module and the first test module, and is used for:

[0008] Receiving antenna signals of k antennas among the M antennas and the amplitude and phase of the test signal, wherein i≤N is an integer, and k≤M is an integer;

[0009] According to the amplitude and phase of the test signal, the amplitudes and phases of the antenna signals of the k antennas relative to the test signal are respectively determined.

[0010] In a possible implementation manner, the first test module includes a first frequency conversion unit and a first processing unit, wherein:

[0011] The first frequency conversion unit is configured to multiply the test signal by a local oscillator signal and filter the multiplication result to obtain a first intermediate frequency signal;

[0012] The first processing unit is configured to obtain the amplitude and phase of the test signal according to the first intermediate frequency signal.

[0013] In a possible implementation manner, each second test module includes a second frequency conversion unit and a second processing unit, where:

[0014] The second frequency conversion unit is configured to multiply the antenna signal by a local oscillator signal and filter the multiplication result to obtain a second intermediate frequency signal;

[0015] The second processing unit is configured to obtain the amplitude and phase of the antenna signal relative to the test signal according to the second intermediate frequency signal and the amplitude and phase of the test signal.

[0016] In a possible implementation manner, the device further includes:

[0017] A position control unit, configured to control the positions of M antennas placed on the position control unit to implement the test of the M antennas at different positions.

[0018] In a possible implementation manner, the device further includes:

[0019] A distribution unit, electrically connected to the control module, the first test module, and the N second test modules, and configured to transmit the local oscillator signal to the first test module and the N second test modules.

[0020] In a possible implementation manner, the distribution unit is further configured to:

[0021] Transmit the amplitude and phase of the test signal to the i-th second test module.

[0022] In a possible implementation manner, the control module is further configured to:

[0023] Control the first test module and the N second test modules to perform self-checking and monitor the states of the first test module and the N second test modules to obtain status information.

[0024] In a possible implementation manner, the control module is further configured to:

[0025] Control the device to enter a calibration mode for calibration to obtain calibration information.

[0026] According to another aspect of the present disclosure, a multi-channel synchronous receiving system is provided, and the system includes:

[0027] One or more of the multi-channel synchronous receiving devices;

[0028] A host computer, electrically connected to the multi-channel synchronous receiving device, for controlling the multi-channel synchronous receiving device and receiving the test results output by the multi-channel synchronous receiving device.

[0029] In a possible implementation, the controlling the multi-channel synchronous receiving device includes:

[0030] Outputting target frequency information and target beam information to control the multi-channel synchronous receiving device to perform tests.

[0031] The multi-channel synchronous receiving device proposed by the embodiments of the present disclosure has the characteristic of being scalable, can test multiple antennas. For a large-scale multi-beam array antenna system, multiple second test modules can be set to adapt to the change in the number of antennas to be tested. Moreover, in the embodiments of the present disclosure, by setting the first test module to obtain the amplitude and phase of the test signal as a reference, the amplitude and phase of the antenna signal of each antenna relative to the test signal can be obtained. Compared with directly obtaining the amplitude and phase of the antenna signal from the antenna signal, the interference caused by the non-ideal transmitter when the control module transmits the test signal through the transmitting antenna can be reduced, thereby improving the accuracy of the test.

[0032] According to the following detailed description of the exemplary embodiments with reference to the accompanying drawings, other features and aspects of the present disclosure will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings included in the specification and constituting a part of the specification, together with the specification, illustrate the exemplary embodiments, features, and aspects of the present disclosure and are used to explain the principles of the present disclosure.

[0034] Figure 1 Shows a schematic diagram of a multi-channel synchronous receiving device according to an embodiment of the present disclosure.

[0035] Figure 2 Shows a schematic diagram of a multi-channel synchronous receiving device according to an embodiment of the present disclosure.

[0036] Figure 3 Shows a schematic diagram of a multi-channel synchronous receiving system according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0037] The following will detail various exemplary embodiments, features, and aspects of the present disclosure with reference to the accompanying drawings. The same reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings do not have to be drawn to scale unless otherwise specified.

[0038] As used herein, the term "exemplary" means "serving as an example, embodiment, or illustration". Any embodiment described as "exemplary" herein need not be construed as superior to or better than other embodiments.

[0039] In addition, for a better illustration of the present disclosure, numerous specific details are given in the following detailed description. Those skilled in the art should understand that the present disclosure can be implemented without some specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail so as to highlight the gist of the present disclosure.

[0040] Under the existing electronic technology conditions, as the number of antennas in the system is increasing (some even including hundreds of antennas), the testing work of large-scale multi-beam array antenna systems is very cumbersome and the workload is huge. And the measurement devices of related technologies generally have only 2 channels or 4 channels, which are difficult to meet the testing of large-scale multi-beam array antenna systems. Moreover, the testing devices of related technologies are expensive and the testing costs are relatively high.

[0041] To solve this problem, the present invention proposes a scalable multi-channel synchronous receiving device for the testing of large-scale multi-beam array antenna systems, which can reduce the testing time of large-scale multi-beam array antenna systems by dozens of times, simplify the testing process, and ensure the efficiency and correctness of testing while improving the testing efficiency.

[0042] Please refer to Figure 1 , Figure 1 which shows a schematic diagram of a multi-channel synchronous receiving device according to an embodiment of the present disclosure.

[0043] As Figure 1 shown, the device may include a control module 10, a transmitting antenna 20, a first test module 30, and N second test modules 40, where N is an integer greater than or equal to 1. Among them,

[0044] The control module 10 is configured to control the transmitting antenna 20 to send a test signal to test M antennas, where M is an integer greater than 1;

[0045] The first test module 30 is electrically connected to the control module 10 and is configured to receive the test signal and obtain the amplitude and phase of the test signal;

[0046] The i-th second test module 40 is electrically connected to the control module 10 and the first test module 30 and is configured to:

[0047] receive the antenna signals of k antennas among the M antennas and the amplitude and phase of the test signal, where i ≤ N and is an integer, and k ≤ M and is an integer;

[0048] According to the amplitude and phase of the test signal, determine the amplitude and phase of the antenna signals of the k antennas relative to the test signal, respectively.

[0049] The multi-channel synchronous receiving device proposed in the embodiments of the present disclosure has the characteristics of being scalable and can test multiple antennas. For a large-scale multi-beam array antenna system, multiple second test modules can be set to adapt to the change in the number of antennas to be tested. Moreover, in the embodiments of the present disclosure, by setting a first test module to obtain the amplitude and phase of the test signal as a reference, the amplitude and phase of the antenna signal of each antenna relative to the test signal can be obtained. Compared with directly obtaining the amplitude and phase of the antenna signal from the antenna signal, the interference caused by the non-ideal transmitter when the control module transmits the test signal through the transmitting antenna can be reduced, thereby improving the accuracy of the test.

[0050] The multi-channel synchronous receiving device provided in the embodiments of the present disclosure can test the antenna system of a 5G (5th generation) communication system, and can also test the antenna systems of 4G and 3G communication systems, and can also test the antenna system of a satellite communication system, and can also test the antenna systems of various subsequent evolved communication systems, such as 6G, 7G, etc.

[0051] The embodiments of the present disclosure are also applicable to different network architectures, including but not limited to a relay network architecture, a dual-link architecture, and a Vehicle-to-Everything architecture.

[0052] 5G described in the embodiments of the present disclosure can also be referred to as a new core network (new core), or 5G NewCore, or a next-generation core network (next generation core, NGC), etc. 5G is set independently of the existing core network, such as an evolved packet core (EPC).

[0053] In a possible implementation manner, the control module 10 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components, or can also be implemented by a dedicated circuit. The present disclosure does not limit the circuit for implementing the control function.

[0054] In a possible implementation, the control module 10 may further include a signal transmitter. During the test, the control module 10 can be set to the frequency and beam of the test signal as needed, and the present disclosure does not limit this. In one example, the control module 10 can receive the frequency information and beam information from the host computer and set the frequency of the test signal to be transmitted by the signal transmitter through a Vector Network Analyzer (VNA).

[0055] The following provides an exemplary description of possible implementation manners of each module of the multi-channel synchronous receiving device.

[0056] Please refer to Figure 2 , Figure 2 which shows a schematic diagram of a multi-channel synchronous receiving device according to an embodiment of the present disclosure.

[0057] In a possible implementation, as Figure 2 shown, the first test module 30 may include a first frequency conversion unit 310 and a first processing unit 320, where:

[0058] The first frequency conversion unit 310 can be used to multiply the test signal by the local oscillator signal and filter the multiplication result to obtain a first intermediate frequency signal;

[0059] The first processing unit 320 can be used to obtain the amplitude and phase of the test signal based on the first intermediate frequency signal.

[0060] In a possible implementation, the test signal obtained by the first test module 30 can be the test signal controlled by the control module 10 to be sent by the transmitting antenna 20, or a bypass signal of the signal sent by the transmitter of the control module 10. The present disclosure does not limit this.

[0061] The first frequency conversion unit 310 can multiply the test signal by the local oscillator signal and filter the multiplication result to obtain the first intermediate frequency signal of the test signal. When the first intermediate frequency signal is transmitted to the first processing unit 320, the first processing unit 320 can analyze and calculate the first intermediate frequency signal to obtain the amplitude and phase of the test signal.

[0062] It should be noted that the present disclosure does not limit the specific implementation manners of the first frequency conversion unit 310 and the first processing unit 320.

[0063] In one example, the first frequency conversion unit 310 may include a multiplication circuit, a filtering circuit, etc. Through the multiplication circuit, the multiplication operation of the test signal and the local oscillator signal can be realized to obtain the multiplication result; through the filtering circuit, the multiplication result can be filtered to obtain the first intermediate frequency signal.

[0064] In one example, the first processing unit 320 may include an analog-to-digital converter (ADC), a digital signal processor (DSP) (or a programmable gate array (FPGA), etc.). The first intermediate frequency signal can be converted by the ADC to obtain a digital signal, and the digital signal output by the ADC can be analyzed and processed by the DSP to obtain the amplitude and phase of the test signal.

[0065] Of course, the above description is exemplary. The first frequency conversion unit and the first processing unit may also be implemented in other ways, and the present disclosure does not limit this.

[0066] Through the above device, the embodiments of the present disclosure can quickly and accurately obtain the amplitude and phase of the test signal, and the implementation of the first test module is simple and the cost is low.

[0067] In a possible implementation manner, as Figure 2 shown, each second test module 40 may include a second frequency conversion unit 410 and a second processing unit 420, where:

[0068] The second frequency conversion unit 410 can be used to multiply the antenna signal by the local oscillator signal and filter the multiplication result to obtain a second intermediate frequency signal;

[0069] The second processing unit 420 can be used to obtain the amplitude and phase of the antenna signal relative to the test signal according to the second intermediate frequency signal and the amplitude and phase of the test signal.

[0070] When the second frequency conversion unit 410 obtains the antenna signal, it can multiply the antenna signal by the local oscillator signal and filter the multiplication result to obtain the second intermediate frequency signal of the antenna signal. When the second intermediate frequency signal is transmitted to the second processing unit 420, the second processing unit 420 can analyze and calculate the second intermediate frequency signal and the amplitude and phase of the test signal to obtain the amplitude and phase of the antenna signal relative to the test signal.

[0071] It should be noted that the present disclosure does not limit the specific implementation manners of the second frequency conversion unit 410 and the second processing unit 420.

[0072] In one example, the second frequency conversion unit 410 may include a multiplication circuit, a filtering circuit, etc. Through the multiplication circuit, the multiplication operation of the antenna signal and the local oscillator signal can be implemented to obtain the multiplication result; through the filtering circuit, the multiplication result can be filtered to obtain the second intermediate frequency signal.

[0073] In one example, the second processing unit 420 may include an analog-to-digital converter ADC, a digital signal processor DSP (or a programmable gate array FPGA, etc.). The second intermediate-frequency signal can be converted by the analog-to-digital converter ADC to obtain a digital signal. The digital signal output by the ADC and the amplitude and phase of the test signal can be analyzed and processed by the digital signal processor to obtain the amplitude and phase of the antenna signal relative to the test signal.

[0074] The present disclosure does not limit the specific number of the second test modules 40. Those skilled in the art can set it according to specific test scenarios and requirements. The present disclosure does not limit the number of antenna signals that the second test module can process, that is, it does not limit the number of channels of the second test signal. Those skilled in the art can set it according to needs.

[0075] In one example, each second test module may include 16 channels, that is, 16 antenna signals can be processed synchronously or asynchronously at the same time to obtain the amplitude and phase of each antenna signal. In this example, the second test module may include 16 pairs of second frequency conversion units 410 and second processing units 420.

[0076] In one example, assuming that a second test module 40 can process 16 paths of antenna signals at the same time, the second processing unit 420 may include multiple analog-to-digital converters. For example, for a 4-channel analog-to-digital converter ADC, since the second test module 40 needs to receive 16 paths of antenna signals and 1 path of test signal, 5 analog-to-digital converters ADC can be set; for an 8-channel ADC, since the second test module 40 needs to receive 16 paths of antenna signals and 1 path of test signal, 3 analog-to-digital converters ADC can be set.

[0077] Of course, the above description is exemplary. The second frequency conversion unit and the second processing unit may also be implemented in other ways, and the present disclosure does not limit this.

[0078] Through the above device, the embodiments of the present disclosure can quickly and accurately obtain the amplitude and phase of the antenna signals of multiple antennas, and the implementation method of the second test module is simple and the cost is low.

[0079] In a possible implementation manner, when testing M antennas, the M antennas can be tested at different positions and directions.

[0080] In a possible implementation manner, the device may further include a position control unit (not shown). The position control unit can be used to control the positions of the M antennas placed on the position control unit to implement the test of the M antennas at different positions.

[0081] In one example, the position control unit may be a turntable, and M antennas (such as a large-scale multi-beam array antenna system) may be placed on the turntable. By receiving the position control signal, the turntable can be controlled to rotate and move, so that the M antennas reach the preset positions.

[0082] Of course, in other embodiments, a fixture may also be provided on the turntable for clamping the M antennas.

[0083] It should be noted that the position control unit can be controlled by the position control signal to change the direction and position. However, the present disclosure does not limit the specific implementation manners of how to implement the position control unit and how to control the position control unit. Those skilled in the art can determine according to actual needs.

[0084] In a possible implementation manner, the device further includes a distribution unit (not shown), and the distribution unit is electrically connected to the control module, the first test module, and the N second test modules, and can be used to transmit the local oscillator signal to the first test module and the N second test modules.

[0085] In one example, the local oscillator signal may be a local oscillator signal generated by a local oscillator in the device or an externally input local oscillator signal. The present disclosure does not limit this.

[0086] In one example, the distribution unit may include a plurality of interfaces, and each interface can output the same local oscillator signal.

[0087] In one example, the embodiments of the present disclosure can cascade a plurality of distribution units to meet the expansion requirements. For example, assuming that a distribution unit includes 12 interfaces for outputting the local oscillator signal, after cascading two distribution units, the distribution of the local oscillator signal can be expanded to 24 channels. When t distribution units are cascaded, the distribution of the local oscillator signal can be expanded to 12 * t channels, thus greatly improving the utilization rate of the current local oscillator signal, where t ≥ and is an integer.

[0088] In a possible implementation manner, the distribution unit can also be used to transmit the amplitude and phase of the test signal to the i-th second test module.

[0089] In one example, the distribution unit may include a plurality of interfaces for transmitting the amplitude and phase of the test signal. After cascading a plurality of distribution units, the amplitude and phase of the test signal can be transmitted to more second test modules.

[0090] Of course, the distribution unit can also be used to distribute reference clocks, calibration sources, etc. The present disclosure does not limit this.

[0091] The present disclosure does not limit the specific implementation manner of the distribution unit, and those skilled in the art can determine the implementation manner of the distribution unit according to needs.

[0092] Before starting to test M antennas with the multi-channel synchronous receiving device, self-checking, calibration and other processes can be performed on each component of the multi-channel synchronous receiving device. The following is an exemplary introduction to the self-checking and calibration processes of the antenna detection device.

[0093] In a possible implementation manner, the control module 10 can also be used to control the first test module and the N second test modules to perform self-checking, and monitor the states of the first test module and the N second test modules to obtain status information.

[0094] By controlling the first test module and the N second test modules to perform self-checking, it can be determined whether there are problems with the first test module and each second test module. After the first test module and the N second test modules complete their respective self-checking, the self-checking results can be sent to the control module 10 as status information.

[0095] Of course, the control module 10 can also monitor the states of the first test module and the N second test modules in real time to obtain the status information of the first detection module and the N second test modules. In this way, the control module can determine whether there are problems with the first test module and each second test module through the status information, and when there are problems, the error information can be reported.

[0096] Of course, the above is an exemplary introduction to the self-checking of the first test module and the second test module. It should be noted that the present disclosure is not limited thereto. In other implementation manners, the control module can also control other modules to perform self-checking, and the control module can also control itself to perform self-checking. In this regard, the present disclosure does not make a limitation.

[0097] It should be noted that the present disclosure does not limit the specific implementation manner of the self-checking of the first test module and the second test module, and those skilled in the art can determine the items and specific implementation manners of the self-checking of the first test module and the second test module according to needs.

[0098] In a possible implementation manner, the control module can also be used for:

[0099] Control the device to enter the calibration mode for calibration to obtain calibration information.

[0100] In one example, the control device may issue a calibration enable signal to enable the device to enter the calibration mode. After entering the calibration mode, the transmitter in the control module may transmit a calibration signal through the transmitting antenna. After receiving the antenna signal, the M antennas transmit the antenna signal to the second test module. After the second test module processes the antenna signals obtained by each antenna respectively, calibration measurement values for each antenna can be obtained.

[0101] In one example, in the antenna test, embodiments of the present disclosure may perform an operation (such as addition) on the amplitude and phase of the antenna signal obtained by the second test module relative to the test signal and the calibration measurement values (including amplitude calibration measurement values and phase calibration measurement values), so as to obtain a final result.

[0102] By calibrating the device, the difference values between the channels in the second test module can be determined, so that the difference values can be used for compensation during actual testing. In this way, the errors caused by the differences between the channels in the second test module can be weakened or even eliminated.

[0103] Wherein, a channel may refer to the path through which the second test module analyzes and processes each antenna signal. For example, assuming that a second test module can process 16 antenna signals simultaneously, then the second test module can be regarded as including 16 channels.

[0104] Please refer to Figure 3 , Figure 3 which shows a schematic diagram of a multi-channel synchronous receiving system according to an embodiment of the present disclosure.

[0105] As Figure 3 shown, the system may include:

[0106] One or more multi-channel synchronous receiving devices 80;

[0107] A host computer 60, electrically connected to the one or more multi-channel synchronous receiving devices 80, for controlling the one or more multi-channel synchronous receiving devices 80 and receiving the test results output by the one or more multi-channel synchronous receiving devices 80.

[0108] It should be noted that the multi-channel synchronous receiving device 80 is the aforementioned multi-channel synchronous receiving device, and its specific introduction can be referred to the previous introduction, which will not be elaborated here.

[0109] It should be noted that the multi-channel synchronous receiving system may include one or more multi-channel synchronous receiving devices 80. The present disclosure does not limit the specific number of multi-channel synchronous receiving devices in the multi-channel synchronous receiving system. Those skilled in the art can set it according to needs. Through the above system, embodiments of the present disclosure can meet the needs of multi-antenna test scenarios, thereby increasing environmental adaptability and flexibility.

[0110] In one example, the control of the multi-channel synchronous receiving device may include:

[0111] Output target frequency information and target beam information to control the multi-channel synchronous receiving device to perform a test.

[0112] In one example, the multi-channel synchronous receiving system may further include a vector network analyzer (not shown). The multi-channel synchronous receiving system may control the frequency and beam of the test signal transmitted by the multi-channel synchronous receiving device through the vector network analyzer.

[0113] Of course, in other embodiments, the multi-channel synchronous receiving system may also control the frequency and beam of the test signal transmitted by the multi-channel synchronous receiving device in other ways. The present disclosure does not limit this.

[0114] In one example, the multi-channel synchronous receiving system may include a communication component (not shown). The communication component may be configured to facilitate communication between the host computer and the multi-channel synchronous receiving device in a wired or wireless manner. The multi-channel synchronous receiving system may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component further includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module may be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

[0115] Compared with the antenna test solutions in the related art, the embodiments of the present disclosure propose a scalable antenna test solution for testing a large-scale multi-beam array antenna surface, which can reduce the test time of the large-scale array antenna system by dozens of times, simplify the test process, and ensure the efficiency and correctness of the test while improving the test efficiency.

[0116] The embodiments of the present disclosure have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technologies in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A multi-channel synchronous receiving device, characterized in that, The device includes a control module, a transmitting antenna, a first test module, and N second test modules, where N is an integer greater than or equal to 1. Among them, the control module is used to control the transmitting antenna to emit a test signal for testing M antennas, where M is an integer greater than 1; the first test module, electrically connected to the control module, is used to receive the test signal and obtain the amplitude and phase of the test signal; the i-th second test module, electrically connected to the control module and the first test module, is used for: receiving the antenna signals of k antennas among the M antennas and the amplitude and phase of the test signal, where i ≤ N and is an integer, and k ≤ M and is an integer; respectively determining the amplitude and phase of the antenna signals of the k antennas relative to the test signal according to the amplitude and phase of the test signal; a position control unit, used to control the positions of the M antennas placed on the position control unit to achieve testing of the M antennas at different positions; a distribution unit, electrically connected to the control module, the first test module, and the N second test modules, is used to transmit the local oscillator signal to the first test module and the N second test modules.

2. The device according to claim 1, wherein The first test module includes a first frequency conversion unit and a first processing unit, where: the first frequency conversion unit is used to multiply the test signal by the local oscillator signal and perform filtering processing on the multiplication result to obtain a first intermediate frequency signal; the first processing unit is used to obtain the amplitude and phase of the test signal according to the first intermediate frequency signal.

3. The device according to claim 1, characterized in that, Each second test module includes a second frequency conversion unit and a second processing unit, where: the second frequency conversion unit is used to multiply the antenna signal by the local oscillator signal and perform filtering processing on the multiplication result to obtain a second intermediate frequency signal; the second processing unit is used to obtain the amplitude and phase of the antenna signal relative to the test signal according to the second intermediate frequency signal and the amplitude and phase of the test signal.

4. The device according to claim 1, characterized in that, The distribution unit is further used for: transmitting the amplitude and phase of the test signal to the i-th second test module.

5. The device according to claim 1, wherein The control module is further used for: controlling the first test module and the N second test modules to perform self-checks and monitoring the states of the first test module and the N second test modules to obtain status information.

6. The device according to claim 1, characterized in that, The control module is further used for: controlling the device to enter a calibration mode for calibration to obtain calibration information.

7. A multi-channel synchronous receiving system, characterized in that, The system includes: one or more multi-channel synchronous receiving devices as described in any one of claims 1 to 6; a host computer, electrically connected to the multi-channel synchronous receiving device, is used to control the multi-channel synchronous receiving device and receive the test results output by the multi-channel synchronous receiving device.

8. The system according to claim 7, characterized in that, The controlling the multi-channel synchronous receiving device includes: outputting target frequency information and target beam information to control the multi-channel synchronous receiving device to perform testing.

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