CN115060986A - Digital phased array antenna test method, system, equipment and storage medium - Google Patents
Digital phased array antenna test method, system, equipment and storage medium Download PDFInfo
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Abstract
The invention discloses a digital phased array antenna test method, which comprises the following steps: the scanning module moves to a test position and sends out a corresponding confirmation signal; the processing module receives the confirmation signal, generates a front surface state control code based on the test position and sends the front surface state control code to an antenna front surface, so that the antenna front surface forms a beam to be tested; the monitoring module acquires a signal to be detected corresponding to the beam to be detected and transmits the signal to be detected and a preset reference signal to the recording module; the recording module records the signal to be detected and the preset reference signal. The invention also discloses a digital phased array antenna test system, equipment and a storage medium. The invention utilizes the fixed test position to enable the digital phased array antenna to construct the corresponding beam to be tested, tests the microwave signal of the beam to be tested and obtains the corresponding directional diagram, thereby achieving the purpose of testing the digital phased array antenna.
Description
Technical Field
The invention relates to the field of digital phased array antenna testing, in particular to a digital phased array antenna testing method, a digital phased array antenna testing system, digital phased array antenna testing equipment and a storage medium.
Background
With the rapid development of electronic technology, the digital phased array antenna is becoming a new development direction of the phased array radar due to its advantages of high search rate, high doppler resolution, angular resolution, high anti-interference capability, multiple functions and the like.
The performance of the phased array antenna is mainly reflected by a directional diagram, and the directional diagram of a common analog phased array antenna is usually tested in a microwave darkroom through a vector network analyzer. Because the microwave excitation source of the uplink is not input from the outside any more, but is derived from the DDS of the digital array antenna, the output of the downlink is not the signal output under the microwave frequency band any more, but is the optical signal sampled by the intermediate frequency, so that the emission directional diagram test of the digital array antenna loses the same-frequency reference standard, and the receiving directional diagram test vector network analyzer has no use and needs a brand-new test method to test the digital array antenna.
Disclosure of Invention
The invention mainly aims to provide a digital phased array antenna testing method, and aims to solve the technical problem that a directional diagram of a digital phased array antenna cannot be obtained so as to test the performance of the digital phased array antenna.
In order to achieve the above object, the present invention provides a digital phased array antenna testing method, which is applied to a digital phased array antenna testing system, wherein the digital phased array antenna testing system includes a scanning module, a processing module, a monitoring module, and a recording module, and the digital phased array antenna testing method includes the following steps:
the scanning module moves to a test position and sends out a corresponding confirmation signal;
the processing module receives the confirmation signal, generates a front surface state control code based on the test position and sends the front surface state control code to an antenna front surface, so that the antenna front surface forms a beam to be tested;
the monitoring module acquires a signal to be detected corresponding to the beam to be detected and transmits the signal to be detected and a preset reference signal to the recording module;
the recording module records the signal to be detected and the preset reference signal.
Preferably, the step of receiving the confirmation signal by the processing module, generating a wavefront state control code based on the test position, and sending the wavefront state control code to the antenna wavefront, so that the antenna wavefront forms a beam to be tested includes:
receiving the confirmation signal, and determining corresponding frequency point information and beam pointing information by the processing module based on the test position;
the processing module generates the array surface state control code based on the frequency point information and the beam pointing information;
the processing module sends the wavefront state control code to the antenna wavefront, so that the antenna wavefront forms the beam to be measured based on the wavefront state control code.
Preferably, the step of acquiring, by the monitoring module, a signal to be detected corresponding to the beam to be detected, and transmitting the signal to be detected and a preset reference signal to the recording module includes:
the monitoring module acquires a radio frequency signal corresponding to the beam to be detected, and performs frequency conversion and AD sampling on the radio frequency signal to obtain the signal to be detected;
and the monitoring module transmits the signal to be detected and the preset reference signal to the recording module.
Preferably, after the step of recording the signal to be detected and the preset reference signal by the recording module, the method further includes:
the processing module acquires the signal to be detected and the preset reference signal recorded by the recording module;
and the processing module performs data processing on the signal to be detected and the preset reference signal to acquire amplitude information and phase information corresponding to the signal to be detected.
Preferably, after the step of performing data processing on the signal to be detected and the preset reference signal by the processing module to obtain the amplitude information and the phase information corresponding to the signal to be detected, the processing module further includes:
and the processing module is used for storing the amplitude information and the phase information in a correlation mode and generating a corresponding directional diagram based on the amplitude information and the phase information.
Preferably, before the step of acquiring, by the monitoring module, a signal to be detected corresponding to the beam to be detected and transmitting the signal to be detected and a preset reference signal to the recording module, the method further includes:
the scanning module collects radio frequency signals corresponding to the beams to be detected and sends the radio frequency signals to the monitoring module.
Preferably, after the step of storing the amplitude information and the phase information in association and generating a corresponding directional diagram based on the amplitude information and the phase information, the processing module further includes:
and updating the test position, and returning to execute the steps that the scanning module moves to the test position and sends out a corresponding confirmation signal.
In addition, to achieve the above object, the present invention provides a digital phased array antenna test system, including:
the scanning module is used for moving to a test position and sending out a corresponding confirmation signal;
the processing module is used for receiving the confirmation signal, generating a front surface state control code based on the test position and sending the front surface state control code to an antenna front surface so as to enable the antenna front surface to form a beam to be tested;
the monitoring module is used for acquiring a signal to be detected corresponding to the beam to be detected and transmitting the signal to be detected and a preset reference signal to the recording module;
and the recording module is used for recording the signal to be detected and the preset reference signal.
In addition, to achieve the above object, the present invention also provides a digital phased array antenna test apparatus, including: a memory, a processor, and a digital phased array antenna test program stored on the memory and executable on the processor, the digital phased array antenna test program when executed by the processor implementing the steps of the digital phased array antenna test method previously described.
In addition, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a digital phased array antenna test program, which when executed by a processor, implements the steps of the aforementioned digital phased array antenna test method.
The digital phased array antenna test method provided by the invention moves to a test position through a scanning module and sends out a corresponding confirmation signal; the processing module receives the confirmation signal, generates a front surface state control code based on the test position and sends the front surface state control code to an antenna front surface, so that the antenna front surface forms a beam to be tested; the monitoring module acquires a signal to be detected corresponding to the beam to be detected and transmits the signal to be detected and a preset reference signal to the recording module; the recording module records the signal to be detected and the preset reference signal. And by utilizing the fixed test position, the digital phased array antenna constructs a corresponding beam to be tested, tests the microwave signal of the beam to be tested and acquires a corresponding directional diagram, thereby achieving the purpose of testing the digital phased array antenna.
Drawings
Fig. 1 is a schematic structural diagram of a digital phased array antenna test apparatus in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a digital phased array antenna testing method according to a first embodiment of the present invention;
fig. 3 is a functional block diagram of an embodiment of a digital phased array antenna system of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a digital phased array antenna test apparatus in a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be a PC, and can also be a terminal device with a display function, such as a smart phone, a tablet computer, a portable computer and the like.
As shown in fig. 1, the digital phased array antenna test apparatus may include: a processor 1001, e.g. a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Optionally, the digital phased array antenna test device may further include a camera, a Radio Frequency (RF) circuit, a sensor, an audio circuit, a WiFi module, and the like. Such as light sensors, motion sensors, and other sensors, will not be described in detail herein.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 does not constitute a limitation of the digital phased array antenna test apparatus and may include more or fewer components than shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a digital phased array antenna test program.
In the digital phased array antenna test apparatus shown in fig. 1, the network interface 1004 is mainly used for connecting to a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be used to invoke the digital phased array antenna test program stored in the memory 1005.
In this embodiment, the digital phased array antenna test apparatus includes: the test system comprises a memory 1005, a processor 1001 and a digital phased array antenna test program which is stored on the memory 1005 and can run on the processor 1001, wherein when the processor 1001 calls the digital phased array antenna test program stored in the memory 1005, the steps of the digital phased array antenna test method in each of the following embodiments are executed.
The invention also provides a digital phased array antenna testing method, and referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the digital phased array antenna testing method of the invention.
In this embodiment, the digital phased array antenna testing method is applied to a digital phased array antenna testing system, where the digital phased array antenna testing system includes a scanning module, a processing module, a monitoring module, and a recording module, and the method includes the following steps:
step S101, the scanning module moves to a test position and sends out a corresponding confirmation signal;
in this embodiment, the digital phased array antenna forms a beam to be tested according to the test position, and the beam to be tested can be subsequently tested, first, the scanning module moves to the test position and sends out a corresponding confirmation signal, for example, the test probe is a scanning probe, the test position is a preset position on the front surface of the antenna, when the scanning probe moves to the position, the scanning probe is static and sends out the confirmation signal, after the processing module receives the confirmation signal, the beam to be tested can be subsequently formed according to the test position, and the scanning probe can scan the beam to be tested, so that the digital phased array antenna is tested.
In another embodiment, there may be more than one test position, and there may be a plurality of test positions, and the test probe may be controlled to sequentially reach each test position to test the beam to be tested formed by the antenna array.
Step S102, the processing module receives the confirmation signal, generates a front surface state control code based on the test position and sends the front surface state control code to an antenna front surface, so that the antenna front surface forms a beam to be tested;
in this embodiment, when the processing module receives the confirmation signal sent by the scanning module, the processing module generates a corresponding wavefront state control code according to the test position, and sends the signal to the antenna array surface of the digital phased array antenna, so that the antenna array surface forms a beam to be measured according to the array surface state control code, for example, the scanning module is a scanning probe, the processing module is a terminal device, when the scanning probe is moved to the testing position and is static, and sends a confirmation signal, after the terminal equipment receives the confirmation signal, calculating corresponding frequency point and beam pointing information according to the test position, then calculating a state control code of a front surface corresponding to the antenna front surface, wherein a control component exists in the antenna front surface of the digital phased array antenna, the terminal equipment sends the state control code to the control component of the antenna front surface, the antenna array surface is controlled to form a corresponding state through the control assembly, so that a beam to be tested corresponding to the test position is formed.
Step S103, the monitoring module acquires a signal to be detected corresponding to the beam to be detected and transmits the signal to be detected and a preset reference signal to the recording module.
In this embodiment, when a beam to be detected is formed, a scanning module collects a radio frequency signal corresponding to the beam to be detected and transmits the radio frequency signal to a receiving channel corresponding to a monitoring module, the monitoring module converts the radio frequency signal into a signal to be detected through a preset operation and finally transmits the signal to be detected and a preset reference signal to a recording module, for example, the scanning module is a scanning probe, when the beam to be detected is formed on a planar array, the scanning probe scans and collects a corresponding radio frequency signal and inputs the radio frequency signal into the receiving channel of the monitoring module, the monitoring module receives the radio frequency signal and then performs a frequency conversion operation on the radio frequency signal to change the radio frequency signal into an intermediate frequency signal, the intermediate frequency signal is then AD-sampled to change the intermediate frequency signal into an IQ digital signal, the IQ digital signal is used as the signal to be detected corresponding to the beam to be detected, and the monitoring module further includes the preset reference signal, after the signal to be detected is obtained, the monitoring module transmits the signal to be detected and the preset reference signal to the recording module so that the recording module can record and store the signal.
Step S104, the recording module records the signal to be detected and the preset reference signal;
in this embodiment, after obtaining the signal to be detected and the preset reference signal transmitted by the monitoring module, the recording module records the signal to be detected and the preset reference signal, for example, the monitoring module performs frequency conversion and AD sampling on the acquired radio frequency signal to obtain an IQ digital signal, the IQ digital signal is used as the signal to be detected, and the signal to be detected and the preset reference signal are transmitted to the recording module, and the recording module records and stores the signal to be detected and the preset reference signal, so that the subsequent processing module performs data processing.
In the digital phased array antenna testing method provided by the embodiment, the scanning module moves to the testing position and sends out the corresponding confirmation signal; the processing module receives the confirmation signal, generates a front surface state control code based on the test position and sends the front surface state control code to an antenna front surface, so that the antenna front surface forms a beam to be tested; the monitoring module acquires a signal to be detected corresponding to the beam to be detected and transmits the signal to be detected and a preset reference signal to the recording module; the recording module records the signal to be detected and the preset reference signal. And by utilizing the fixed test position, the digital phased array antenna constructs a corresponding beam to be tested, tests the microwave signal of the beam to be tested and acquires a corresponding directional diagram, thereby achieving the purpose of testing the digital phased array antenna.
Based on the first embodiment, a second embodiment of the digital phased array antenna testing method of the present invention is provided, in this embodiment, step S102 includes:
step S201, receiving the confirmation signal, the processing module determining corresponding frequency point information and beam pointing information based on the test position;
step S202, the processing module generates the array surface state control code based on the frequency point information and the beam pointing information;
step S203, the processing module sends the wavefront state control code to the antenna wavefront, so that the antenna wavefront forms the beam to be measured based on the wavefront state control code.
In this embodiment, after receiving the confirmation signal sent by the scanning module, the processing module determines corresponding frequency point information and beam pointing information according to the test position, and then the processing module generates a corresponding array surface state control code according to the frequency point information and the beam pointing information, and sends the array surface state control code to the antenna array surface, and controls the antenna array surface to form a beam to be tested according to the array surface state control code.
In the digital phased array antenna testing method provided by this embodiment, by receiving the confirmation signal, the processing module determines corresponding frequency point information and beam pointing information based on the test position; the processing module generates the array surface state control code based on the frequency point information and the beam pointing information; the processing module sends the array surface state control code to the antenna array surface, so that the antenna array surface forms the beam to be measured based on the array surface state control code. And a corresponding beam to be tested is formed according to the actual test position and is tested, so that the test accuracy is improved, and a corresponding directional diagram and a test result can be generated according to the beam to be tested subsequently, thereby achieving the purpose of testing the digital phased array antenna.
Based on the first embodiment, a third embodiment of the digital phased array antenna testing method of the present invention is provided, in this embodiment, step S103 includes:
step S301, the monitoring module acquires a radio frequency signal corresponding to the beam to be detected, and performs frequency conversion and AD sampling operations on the radio frequency signal to obtain the signal to be detected;
step S302, the monitoring module transmits the signal to be detected and the preset reference signal to the recording module.
In this embodiment, the monitoring module obtains a radio frequency signal corresponding to a beam to be detected, and performs frequency conversion and AD sampling operations on the radio frequency signal to obtain a signal to be detected, and transmits the signal to be detected and a preset reference signal to the recording module for recording, for example, the scanning module obtains the radio frequency signal according to the beam to be detected formed by the antenna array surface, and then the scanning module transmits the radio frequency signal to a receiving channel of the monitoring module through an optical fiber network, the monitoring module performs frequency conversion operation on the radio frequency signal to convert the radio frequency signal into an intermediate frequency signal, and then performs AD sampling on the intermediate frequency signal to obtain an IQ digital signal, which is the signal to be detected, since the preset reference signal is originally stored in the monitoring module, after the signal to be detected is generated, the monitoring module transmits the signal to be detected and the preset reference signal to the recording module through the optical fiber network for recording, for subsequent data processing.
In the digital phased array antenna testing method provided by this embodiment, the monitoring module obtains the radio frequency signal corresponding to the beam to be tested, and performs frequency conversion and AD sampling on the radio frequency signal to obtain the signal to be tested; and the monitoring module transmits the signal to be detected and the preset reference signal to the recording module. The method comprises the steps of carrying out corresponding operation on signals collected from beams to be tested, converting the signals into IQ digital signals, transmitting the IQ digital signals serving as signals to be tested and preset reference signals to a recording module together for data processing, and generating directional diagrams and test results according to the signals to be tested and the preset reference signals subsequently, so that the aim of testing the digital phased array antenna is fulfilled.
Based on the first embodiment, a fourth embodiment of the digital phased array antenna testing method of the present invention is proposed, and in this embodiment, after step S104, the method further includes:
step S401, the processing module acquires the signal to be detected and the preset reference signal recorded by the recording module;
step S402, the processing module performs data processing on the signal to be detected and the preset reference signal to obtain amplitude information and phase information corresponding to the signal to be detected.
In this embodiment, after the monitoring module transmits the signal to be detected and the preset reference signal to the recording module, the recording module detects the signal to be detectedThe signal and the preset reference signal are recorded, the processing module obtains the recorded signal to be detected and the preset reference signal from the recording module and performs data processing, so as to obtain amplitude information and phase information corresponding to the signal to be detected, for example, the recording module is a data recorder, the monitoring module transmits the signal to be detected and the preset reference signal to the data recorder after obtaining the signal to be detected, the processing module is an equipment terminal, the equipment terminal obtains the signal to be detected and the preset reference signal from the data recorder and performs data processing, and according to the amplitude and the phase of the signal to be detected, the amplitude weighting coefficient a corresponding to the signal to be detected is determined i And maximum pointing direction of antenna beam theta B And the amplitude information and the phase information corresponding to the signal to be measured are taken as the amplitude information and the phase information.
In the digital phased array antenna testing method provided by this embodiment, the processing module obtains the signal to be tested and the preset reference signal recorded by the recording module; and the processing module performs data processing on the signal to be detected and the preset reference signal to acquire amplitude information and phase information corresponding to the signal to be detected. The directional diagram can be constructed through the amplitude information and the phase information subsequently, the test result is obtained according to the directional diagram, and the performance of the digital phased array antenna is evaluated, so that the purpose of testing the digital phased array antenna is achieved.
Based on the fourth embodiment, a fifth embodiment of the digital phased array antenna testing method of the present invention is proposed, and in this embodiment, after step S402, the method further includes:
step S501, the processing module stores the amplitude information and the phase information in a correlated manner, and generates a corresponding directional diagram based on the amplitude information and the phase information.
In this embodiment, the processing module performs associated storage on the amplitude information and the phase information corresponding to the signal to be detected, and generates a corresponding directional diagram according to the amplitude information and the phase information, for example, the processing module is a terminal device, the terminal device performs data processing after acquiring the signal to be detected and a preset reference signal from a data recorder, and determines a corresponding amplitude weighting system according to the signal to be detectedNumber a i And maximum pointing direction of antenna beam theta B And weighting the amplitude by a coefficient a i And maximum pointing direction theta of antenna beam B Performing correlation storage, and then obtaining a directional diagram function corresponding to the signal to be measured according to the following formula:
wherein j is an imaginary symbol, a i Is an amplitude weighting coefficient Δ Φ B Is the feed phase difference between adjacent units, i.e. T/R components, also called the intra-array phase shift value, and B =(2π/λ)dsinθ B ，θ B the antenna beam is pointed at its maximum.
According to the directional diagram function, a corresponding directional diagram can be constructed by using software, and similarly, a reference directional diagram can be formed according to a preset reference signal, the preset reference signal corresponds to the array surface state control code, the reference directional diagram is the directional diagram corresponding to the array surface state control code, and then the directional diagram corresponding to the signal to be tested is compared and evaluated with the reference directional diagram by using the software, so that a test result is obtained, and the purpose of testing the digital phased array antenna is achieved.
In the digital phased array antenna testing method provided by this embodiment, the processing module is used to store the amplitude information and the phase information in an associated manner, and a corresponding directional diagram is generated based on the amplitude information and the phase information. And obtaining corresponding amplitude information and phase information according to the signal to be tested and generating a directional diagram, so that a test result can be obtained subsequently according to the directional diagram, and the performance of the digital phased array antenna is evaluated, thereby achieving the purpose of testing the digital phased array antenna.
Based on the first embodiment, a sixth embodiment of the digital phased array antenna testing method of the present invention is proposed, and in this embodiment, before step S103, the method further includes:
step S601, the scanning module collects the radio frequency signal corresponding to the wave beam to be detected and sends the radio frequency signal to the monitoring module.
In this embodiment, the scanning module collects a radio frequency signal corresponding to a beam to be detected at the test position, and sends the radio frequency signal to the receiving channel of the monitoring module, so that the subsequent monitoring module can process the radio frequency signal, for example, the scanning module is a scanning probe, the scanning probe collects the beam to be detected formed by the antenna array surface at the test position, acquires the corresponding radio frequency signal, and sends the radio frequency signal to the receiving channel of the monitoring module, so that the subsequent monitoring module can perform frequency conversion and AD sampling operations on the radio frequency signal, and obtain the signal to be detected.
In the digital phased array antenna testing method provided by this embodiment, the scanning module collects the radio frequency signal corresponding to the beam to be tested, and sends the radio frequency signal to the monitoring module. The accuracy of the digital phased array antenna test is improved, so that a signal to be tested can be obtained subsequently according to the radio frequency signal, corresponding amplitude information and phase information are obtained according to the signal to be tested, and a directional diagram is constructed, so that the purpose of testing the digital phased array antenna is achieved.
Based on the fifth embodiment, a seventh embodiment of the digital phased array antenna testing method of the present invention is provided, in this embodiment, after step S501, the method further includes:
step S701, updating the test position, and returning to execute the step of moving the scanning module to the test position and sending a corresponding confirmation signal.
In this embodiment, after performing a test at a test position and generating a directional pattern corresponding to a signal to be tested, the test position may be updated, and the step of executing the scanning module to move to the test position and send a corresponding confirmation signal is returned, for example, after performing a test at any test position and obtaining a corresponding directional pattern, a second test position may be set, the scanning module is controlled to move to the second test position, and the test steps proposed in the above embodiments are performed again, so as to obtain a directional pattern corresponding to the second test position and evaluate the directional pattern, thereby performing data acquisition and test on the digital phased array antenna for multiple times.
In the digital phased array antenna testing method provided by this embodiment, the testing position is updated, and the step of moving the scanning module to the testing position and sending out the corresponding confirmation signal is returned to. Therefore, the wave beam to be tested can be formed according to the plurality of test positions, and the directional patterns corresponding to the plurality of test positions are constructed, so that the aim of comprehensively testing the digital phased array antenna is fulfilled.
The present invention also provides a digital phased array antenna test system, referring to fig. 3, the digital phased array antenna test system including:
the scanning module 10 is used for moving to a test position and sending out a corresponding confirmation signal;
the processing module 20 is configured to receive the acknowledgement signal, generate a wavefront state control code based on the test position, and send the wavefront state control code to an antenna wavefront, so that the antenna wavefront forms a beam to be tested;
the monitoring module 30 is configured to acquire a signal to be detected corresponding to the beam to be detected, and transmit the signal to be detected and a preset reference signal to the recording module;
and the recording module 40 is configured to record the signal to be detected and the preset reference signal.
In addition, an embodiment of the present invention further provides a digital phased array antenna testing apparatus, where the digital phased array antenna testing apparatus includes: a memory, a processor and a digital phased array antenna test program stored on the memory and executable on the processor, the digital phased array antenna test program when executed by the processor implementing the steps of the digital phased array antenna test method as described above.
Furthermore, the present invention also provides a computer readable storage medium, preferably a computer readable storage medium, having stored thereon a digital phased array antenna test program, which when executed by a processor implements the steps of the digital phased array antenna test method as described above.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention or the portions contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The digital phased array antenna testing method is characterized by being applied to a digital phased array antenna testing system, wherein the digital phased array antenna testing system comprises a scanning module, a processing module, a monitoring module and a recording module, and the digital phased array antenna testing method comprises the following steps:
the scanning module moves to a test position and sends out a corresponding confirmation signal;
the processing module receives the confirmation signal, generates a front surface state control code based on the test position and sends the front surface state control code to an antenna front surface, so that the antenna front surface forms a beam to be tested;
the monitoring module acquires a signal to be detected corresponding to the beam to be detected and transmits the signal to be detected and a preset reference signal to the recording module;
the recording module records the signal to be detected and the preset reference signal.
2. The method of claim 1, wherein the step of the processing module receiving the confirmation signal, generating a wavefront state control code based on the test position and transmitting to the antenna wavefront, such that the antenna wavefront forms a beam to be tested, comprises:
receiving the confirmation signal, and determining corresponding frequency point information and beam pointing information by the processing module based on the test position;
the processing module generates the array surface state control code based on the frequency point information and the beam pointing information;
the processing module sends the wavefront state control code to the antenna wavefront, so that the antenna wavefront forms the beam to be measured based on the wavefront state control code.
3. The method for testing the digital phased array antenna according to claim 1, wherein the step of the monitoring module acquiring a signal to be tested corresponding to the beam to be tested and transmitting the signal to be tested and a preset reference signal to the recording module comprises:
the monitoring module acquires a radio frequency signal corresponding to the beam to be detected, and performs frequency conversion and AD sampling on the radio frequency signal to obtain the signal to be detected;
and the monitoring module transmits the signal to be detected and the preset reference signal to the recording module.
4. The method for testing a digital phased array antenna as claimed in claim 1, wherein said step of recording said signal under test and said predetermined reference signal by said recording module further comprises:
the processing module acquires the signal to be detected and the preset reference signal recorded by the recording module;
and the processing module performs data processing on the signal to be detected and the preset reference signal to acquire amplitude information and phase information corresponding to the signal to be detected.
5. The method for testing the digital phased array antenna according to claim 4, wherein the step of the processing module performing data processing on the signal to be tested and the predetermined reference signal to obtain the amplitude information and the phase information corresponding to the signal to be tested further comprises:
and the processing module is used for storing the amplitude information and the phase information in a correlation mode and generating a corresponding directional diagram based on the amplitude information and the phase information.
6. The method for testing a digital phased array antenna according to claim 1, wherein before the step of the monitoring module acquiring the signal to be tested corresponding to the beam to be tested and transmitting the signal to be tested and a predetermined reference signal to the recording module, the method further comprises:
the scanning module collects radio frequency signals corresponding to the beams to be detected and sends the radio frequency signals to the monitoring module.
7. The digital phased array antenna testing method of claim 5, wherein said processing module, after the step of storing said amplitude information and said phase information in association and generating a corresponding pattern based on said amplitude information and said phase information, further comprises:
and updating the test position, and returning to execute the steps that the scanning module moves to the test position and sends a corresponding confirmation signal.
8. A digital phased array antenna test system, the digital phased array antenna test system comprising:
the scanning module is used for moving to a test position and sending out a corresponding confirmation signal;
the processing module is used for receiving the confirmation signal, generating a front surface state control code based on the test position and sending the front surface state control code to an antenna front surface so that the antenna front surface forms a beam to be tested;
the monitoring module is used for acquiring a signal to be detected corresponding to the beam to be detected and transmitting the signal to be detected and a preset reference signal to the recording module;
and the recording module is used for recording the signal to be detected and the preset reference signal.
9. A digital phased array antenna test apparatus, characterized in that the digital phased array antenna test apparatus comprises: memory, a processor and a digital phased array antenna test program stored on the memory and executable on the processor, the digital phased array antenna test program when executed by the processor implementing the steps of the digital phased array antenna test method of any of claims 1 to 7.
10. A computer readable storage medium having stored thereon a digital phased array antenna test program which, when executed by a processor, implements the steps of the digital phased array antenna test method of any of claims 1 to 7.
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