CN114720781A - Antenna consistency testing platform system convenient to maintain - Google Patents
Antenna consistency testing platform system convenient to maintain Download PDFInfo
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- CN114720781A CN114720781A CN202210358106.3A CN202210358106A CN114720781A CN 114720781 A CN114720781 A CN 114720781A CN 202210358106 A CN202210358106 A CN 202210358106A CN 114720781 A CN114720781 A CN 114720781A
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Abstract
The invention discloses an antenna consistency detection platform system convenient for maintenance, which comprises: the building module is used for building a virtual test environment according to the array antenna to be tested and a preset transmitting antenna; the generating module is used for generating a test signal and uploading the test signal to the preset transmitting antenna so as to transmit the test signal to a receiving channel of the array antenna to be tested; the acquisition module is used for acquiring phase radiation direction data of the array antenna to be detected according to a signal feedback result of the array antenna to be detected; and the evaluation module is used for evaluating the synchronization consistency of each antenna unit in the array antenna to be tested and the amplitude-phase consistency of the receiving channel of the antenna unit according to the phase radiation direction data of the array antenna to be tested. Multifunctional detection can be realized, so that stable operation of each antenna unit is ensured, and the working efficiency and the practicability are improved.
Description
Technical Field
The invention relates to the technical field of communication, in particular to an antenna consistency detection platform system convenient to maintain.
Background
With the continuous development of satellite navigation and measurement technologies, satellite positioning systems are also increasingly widely used. Currently, several countries in the world have built their own satellite positioning systems, such as the beidou satellite navigation system in china, the global positioning system in the united states, the russian global satellite navigation system, and the Galileo satellite positioning navigation system in europe. The satellite signal of a satellite navigation system represented by a GPS is very weak and is easily interfered by external radio frequency, so the requirement on the anti-interference performance of an antenna of a receiving device for the satellite signal is high, and if the anti-interference performance of the antenna of the receiving device is not sufficient, the receiving device may not work normally under severe conditions, and at present, the anti-interference performance of the antenna is basically realized by adopting an array type adaptive antenna technology, but because the structure is complex, the stability of the antenna needs to be ensured, and therefore, the antenna needs to be detected regularly for consistency, the existing detection method is to confirm whether the antenna receives the signal by sending the signal to the antenna, and if the signal is received, the consistency of antenna units in the array antenna is confirmed to be the same, but the method has the following problems: because the received signal is received by the whole array antenna, the signal receiving function of the antenna unit can only be ensured to be consistent according to the signal receiving result, other functions can not be confirmed to be consistent, and the practicability is reduced.
Disclosure of Invention
In view of the above-mentioned problems, the present invention provides a maintenance-friendly antenna consistency detection platform system to solve the problem mentioned in the background art that since the received signal is received by the whole array antenna, only the signal receiving function of the antenna unit can be ensured to be consistent according to the signal receiving result, and the consistency of other functions cannot be confirmed, thereby reducing the practicability.
An antenna consistency detection platform system that facilitates maintenance, the system comprising:
the building module is used for building a virtual test environment according to the array antenna to be tested and a preset transmitting antenna;
the generating module is used for generating a test signal and uploading the test signal to the preset transmitting antenna so as to transmit the test signal to a receiving channel of the array antenna to be tested;
the acquisition module is used for acquiring phase radiation direction data of the array antenna to be detected according to a signal feedback result of the array antenna to be detected;
and the evaluation module is used for evaluating the synchronization consistency of each antenna unit in the array antenna to be tested and the amplitude-phase consistency of the receiving channel of the antenna unit according to the phase radiation direction data of the array antenna to be tested.
Preferably, the building block includes:
the first obtaining submodule is used for obtaining respective arrangement modes of the array antenna to be detected and the transmitting antenna;
the scanning submodule is used for selecting a target scanning item based on the arrangement mode, scanning the array antenna to be detected and the transmitting antenna by using the target scanning item, and acquiring a scanning array, wherein the target scanning item comprises: one-dimensional scanning or two-dimensional scanning;
the second acquisition submodule is used for respectively acquiring standard working parameters corresponding to the array antenna to be tested and the transmitting antenna, and calculating the environment parameters of the virtual test environment according to the standard working parameters;
and the construction submodule is used for constructing a virtual test environment according to the scanning array and the environment parameters.
Preferably, the generating module includes:
the first determining submodule is used for determining the standard receiving signal frequency range of the array antenna to be detected;
the first generation submodule is used for generating a test signal of a target frequency according to the standard receiving signal frequency range of the array antenna to be tested and by combining the working signal frequency interval of the transmitting antenna;
the leading-in submodule is used for leading the test signal of the target frequency into a preset transmitting channel of a transmitting antenna;
and the control submodule is used for controlling the transmitting antenna to transmit the test signal of the target frequency to the receiving channel of the array antenna to be tested through the preset transmitting channel.
Preferably, the generating module further includes:
a second determining submodule, configured to determine a frequency domain variation range of the test signal;
the calculation submodule is used for calculating a frequency domain estimation value of a preset sending channel according to the frequency domain variation range;
the third determining submodule is used for determining a frequency domain calibration coefficient of the test signal according to the frequency domain estimated value and the frequency domain variation range of the test signal;
and the calibration submodule is used for calibrating the target frequency of the test signal according to the frequency domain calibration coefficient, acquiring a calibration result and uploading the calibration result to the import submodule.
Preferably, the system further comprises:
the test module is used for carrying out transmission test on a receiving channel of the array antenna to be tested by using a preset signal to obtain a test result;
the determining module is used for determining the quality of the received signal of the receiving channel of the array antenna to be tested according to the test result;
the computing module is used for computing the signal attenuation rate of the receiving channel of the array antenna to be tested according to the quality of the receiving signal and the initial signal quality of a preset signal;
and the enhancement module is used for enhancing the test signal based on the signal attenuation rate to obtain the enhanced test signal.
Preferably, the obtaining module includes:
the fourth determining submodule is used for determining a plurality of state responses of the array antenna to be tested to the test signals according to the signal feedback result of the array antenna to be tested;
the second generation submodule is used for generating a response equation set of the array antenna to be tested relative to the test signal according to the plurality of state responses;
the solving submodule is used for solving the response equation set by taking the radiation range of the array antenna signal to be detected as an independent variable to obtain a solving result;
and the third acquisition submodule is used for acquiring the phase radiation direction data of the array antenna to be detected according to the solving result.
Preferably, the evaluation module includes:
a fifth determining submodule, configured to determine a distribution situation of each antenna unit on the array antenna to be tested;
a sixth determining submodule, configured to determine, according to a distribution situation of each antenna unit on the array antenna to be detected, a signal radiation angle range of the antenna unit;
the antenna unit is also used for determining sub-phase radiation direction data of each antenna unit according to the signal radiation angle range of each antenna unit and the phase radiation direction data of the array antenna to be detected;
and the evaluation submodule is used for evaluating the synchronization consistency of the antenna units and the amplitude consistency of the receiving channel according to the sub-phase radiation direction data of each antenna unit.
Preferably, the evaluation sub-module includes:
the acquisition unit is used for acquiring the maximum value in the signal radiation angle range of each antenna unit according to the sub-phase radiation direction data of the antenna unit;
a determining unit for determining a signal reception gain of each antenna element;
the computing unit is used for computing the gain deviation of each antenna unit according to the signal receiving gain of each antenna unit and the maximum value in the signal radiation angle range combined with the antenna unit;
and the evaluation unit is used for evaluating the synchronous consistency among all the antenna units in the array antenna to be tested and the amplitude-phase consistency of the receiving channel according to the gain deviation of each antenna unit.
Preferably, the step of determining, by the determining module, the received signal quality of the receiving channel of the array antenna to be tested according to the test result includes:
acquiring a receiving signal of the array antenna to be tested according to the test result;
carrying out self-adaptive processing on the received signals, and constructing a received signal matrix according to a processing result;
carrying out eigenvalue decomposition on the received signal matrix, and determining a main signal frequency spectrum and a noise signal frequency spectrum of the received signal frequency spectrum according to a decomposition result;
and determining the fluctuation condition of the received signal according to the main signal frequency spectrum, and determining the quality of the received signal of the receiving channel of the array antenna to be tested based on the fluctuation condition.
Preferably, the step of calculating, by the calculation module, the signal attenuation rate of the receiving channel of the array antenna to be measured according to the quality of the received signal and the initial signal quality of the preset signal includes:
evaluating the signal impulse response of the receiving channel according to the difference between the quality of the receiving signal and a preset signal and the gain parameter of the receiving channel;
constructing a variance matrix of signal impulse response of a receiving channel;
determining the convergence of a receiving channel according to the relation between the variance matrix and the parameter vector of the receiving channel;
determining a current scattering beam pattern of the array antenna to be detected when a preset signal is received according to the convergence;
constructing a standard scattering beam pattern of the array antenna to be detected when a preset signal is received by using the planar frequency control array of each antenna unit in the array antenna to be detected;
determining energy weight distribution corresponding to the current scattering beam pattern and the standard scattering beam pattern according to a preset energy distribution rule;
constructing respective energy weight matrixes of the current scattering beam pattern and the standard scattering beam pattern according to the respective corresponding energy weight distribution of the current scattering beam pattern and the standard scattering beam pattern;
comparing matrix factors at the same position between the two matrixes to obtain a comparison result;
determining the change condition of each matrix factor in the energy weight matrix of the standard scattering beam pattern according to the comparison result;
determining the change condition of the characteristic quantity between the received signal and the preset signal according to the change condition of each matrix factor;
determining attenuation characteristics of the changed characteristic quantity according to the change condition of the characteristic quantity;
and determining the signal attenuation rate of the receiving channel of the array antenna to be tested according to the attenuation characteristic of the change characteristic quantity and the initial characteristic quantity of the preset signal.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
FIG. 1 is a schematic structural diagram of an antenna consistency testing platform system for easy maintenance according to the present invention;
FIG. 2 is a schematic structural diagram of a building block in an antenna consistency detection platform system convenient for maintenance according to the present invention;
FIG. 3 is a schematic structural diagram of a generation module in an antenna consistency detection platform system provided by the present invention, which is convenient for maintenance;
fig. 4 is another schematic structural diagram of an antenna consistency testing platform system convenient for maintenance according to the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
With the continuous development of satellite navigation and measurement technology, satellite positioning systems are also increasingly widely used. Currently, there are several countries around the world that have built their own satellite positioning systems, such as the beidou satellite navigation system in china, the global positioning system in the united states, the russian global satellite navigation system, and the european Galileo satellite positioning navigation system. The satellite signal of a satellite navigation system represented by a GPS is very weak and is easily interfered by external radio frequency, so the requirement on the anti-interference performance of an antenna of a receiving device for the satellite signal is high, and if the anti-interference performance of the antenna of the receiving device is not sufficient, the receiving device may not work normally under severe conditions, and at present, the anti-interference performance of the antenna is basically realized by adopting an array type adaptive antenna technology, but because the structure is complex, the stability of the antenna needs to be ensured, and therefore, the antenna needs to be detected regularly for consistency, the existing detection method is to confirm whether the antenna receives the signal by sending the signal to the antenna, and if the signal is received, the consistency of antenna units in the array antenna is confirmed to be the same, but the method has the following problems: because the received signal is received by the whole array antenna, the signal receiving function of the antenna unit can only be ensured to be consistent according to the signal receiving result, other functions can not be confirmed to be consistent, and the practicability is reduced. In order to solve the above problem, the present embodiment discloses an antenna consistency detection platform system convenient for maintenance.
An antenna consistency testing platform system for easy maintenance, as shown in fig. 1, the system comprising:
the building module 101 is configured to build a virtual test environment according to the array antenna to be tested and a preset transmitting antenna;
the generating module 102 is configured to generate a test signal and upload the test signal to the preset transmitting antenna so that the test signal is transmitted to a receiving channel of the array antenna to be tested;
the obtaining module 103 is configured to obtain phase radiation direction data of the array antenna to be detected according to a signal feedback result of the array antenna to be detected;
and the evaluation module 104 is configured to evaluate the synchronization consistency of each antenna unit in the array antenna to be tested and the amplitude consistency of the receiving channel of the antenna unit according to the phase radiation direction data of the array antenna to be tested.
The working principle of the technical scheme is as follows: the method comprises the steps of firstly establishing a virtual test environment according to an array antenna to be tested and a preset transmitting antenna through a construction module, then generating a test signal through a generation module, uploading the test signal to the preset transmitting antenna to enable the test signal to be transmitted to a receiving channel of the array antenna to be tested, then acquiring phase radiation direction data of the array antenna to be tested through an acquisition module according to a signal feedback result of the array antenna to be tested, and finally evaluating the synchronization consistency of each antenna unit in the array antenna to be tested and the amplitude consistency of the receiving channel of the antenna unit through an evaluation module according to the phase radiation direction data of the array antenna to be tested.
The beneficial effects of the above technical scheme are: the method and the device can ensure the stable running of the test process by constructing a virtual test environment, ensure that the test result is more practical, and improve the objectivity of the test result, and further realize multifunctional detection by evaluating the synchronous consistency of each antenna unit in the array antenna to be tested and the amplitude-phase consistency of a receiving channel of the antenna unit according to the phase radiation direction data of the array antenna to be tested, thereby ensuring the stable running of each antenna unit, improving the working efficiency and the practicability, and solving the problems that in the prior art, because a received signal is received by the whole array antenna, the consistency of the signal receiving function of the antenna unit can only be ensured according to the signal receiving result, other functions can not be confirmed, and the practicability is reduced.
In one embodiment, as shown in fig. 2, the building block includes:
the first obtaining submodule 1011 is used for obtaining respective arrangement modes of the array antenna to be detected and the transmitting antenna;
a scanning sub-module 1012, configured to select a target scanning item based on the arrangement manner, scan the array antenna to be tested and the transmitting antenna by using the target scanning item, and obtain a scanning array, where the target scanning item includes: one-dimensional scanning or two-dimensional scanning;
the second obtaining sub-module 1013 is configured to obtain standard working parameters corresponding to the array antenna to be tested and the transmitting antenna, respectively, and calculate an environmental parameter of the virtual test environment according to the standard working parameters;
and the construction sub-module 1014 is used for constructing a virtual test environment according to the scan array and the environment parameters.
The beneficial effects of the above technical scheme are: the scanning items can be reasonably selected according to the actual appearance parameters of the array antenna by selecting the target scanning items according to the respective arrangement modes of the array antenna to be detected and the transmitting antenna. Therefore, the accuracy and the comprehensiveness of the scanning result are ensured, further, the fault tolerance rate between the constructed virtual testing environment and the array antenna and between the constructed virtual testing environment and the transmitting antenna can be ensured by calculating the standard environment parameters, and the testing stability is further improved.
In one embodiment, as shown in fig. 3, the generating module includes:
a first determining submodule 1021, configured to determine a standard received signal frequency range of the array antenna to be detected;
the first generating submodule 1022 is configured to generate a test signal of a target frequency according to a standard received signal frequency range of the array antenna to be tested in combination with a working signal frequency interval of the transmitting antenna;
an import sub-module 1023, configured to import the test signal of the target frequency into a preset transmission channel of a transmission antenna;
and the control submodule 1024 is configured to control the transmitting antenna to transmit the test signal of the target frequency to the receiving channel of the array antenna to be tested through the preset transmitting channel.
The beneficial effects of the above technical scheme are: the optimal test signal can be reasonably selected by combining the generated test signal of the target frequency with the working parameters of the array antenna, so that the test efficiency and stability are further improved, and further, the test signal can be completely received by the array antenna by transmitting the test signal to the receiving channel through the transmitting channel, so that the test stability and the test efficiency are further improved.
In one embodiment, the generating module further includes:
a second determining submodule, configured to determine a frequency domain variation range of the test signal;
the calculation submodule is used for calculating a frequency domain estimation value of a preset sending channel according to the frequency domain variation range;
the third determining submodule is used for determining a frequency domain calibration coefficient of the test signal according to the frequency domain estimated value and the frequency domain variation range of the test signal;
and the calibration submodule is used for calibrating the target frequency of the test signal according to the frequency domain calibration coefficient, acquiring a calibration result and uploading the calibration result to the import submodule.
The beneficial effects of the above technical scheme are: the target frequency of the test signal is adjusted according to the frequency domain estimation value of the transmitting channel, so that the transmitting channel can transmit the test signal more quickly, completely and stably, and the stability and the working efficiency are further improved.
In one embodiment, as shown in fig. 4, the system further comprises:
the test module 105 is configured to perform transmission test on a receiving channel of the array antenna to be tested by using a preset signal to obtain a test result;
a determining module 106, configured to determine, according to the test result, the received signal quality of the receiving channel of the array antenna to be tested;
a calculating module 107, configured to calculate a signal attenuation rate of a receiving channel of the array antenna to be measured according to the quality of the received signal and an initial signal quality of a preset signal;
and the enhancing module 108 is configured to perform enhancement processing on the test signal based on the signal attenuation rate to obtain an enhanced test signal.
The beneficial effects of the above technical scheme are: the receiving channel is tested to determine the signal attenuation rate of the receiving channel, and then the test signal is enhanced, so that the influence of the receiving channel and external parameters can be considered, the receiving channel can stably receive the test signal to perform subsequent detection work, and the stability and the practicability are further improved.
In one embodiment, the obtaining module includes:
the fourth determining submodule is used for determining a plurality of state responses of the array antenna to be tested to the test signals according to the signal feedback result of the array antenna to be tested;
the second generation submodule is used for generating a response equation set of the array antenna to be tested relative to the test signal according to the plurality of state responses;
the solving submodule is used for solving the response equation set by taking the radiation range of the array antenna signal to be detected as an independent variable to obtain a solving result;
and the third acquisition submodule is used for acquiring the phase radiation direction data of the array antenna to be detected according to the solving result.
The beneficial effects of the above technical scheme are: the accuracy and the invariability of the test data can be ensured by constructing a response equation set to solve to obtain the phase radiation direction data of the array antenna to be tested, the influence of interference data is avoided, and the accuracy of the data is further ensured.
In one embodiment, the evaluation module comprises:
a fifth determining submodule, configured to determine a distribution situation of each antenna unit on the array antenna to be tested;
a sixth determining submodule, configured to determine, according to a distribution situation of each antenna unit on the array antenna to be detected, a signal radiation angle range of the antenna unit;
the antenna unit is also used for determining sub-phase radiation direction data of each antenna unit according to the signal radiation angle range of each antenna unit and the phase radiation direction data of the array antenna to be detected;
and the evaluation submodule is used for evaluating the synchronization consistency of the antenna units and the amplitude consistency of the receiving channel according to the sub-phase radiation direction data of each antenna unit.
The beneficial effects of the above technical scheme are: the consistency evaluation can be carried out on the sub-data corresponding to each antenna unit by respectively obtaining the sub-phase radiation direction data of each antenna unit to carry out the consistency evaluation, so that the rationality and the objectivity of the evaluation result are ensured, and the evaluation precision is improved.
In one embodiment, the evaluation sub-module comprises:
the acquisition unit is used for acquiring the maximum value in the signal radiation angle range of each antenna unit according to the sub-phase radiation direction data of the antenna unit;
a determining unit for determining a signal reception gain of each antenna unit;
the computing unit is used for computing the gain deviation of each antenna unit according to the signal receiving gain of each antenna unit and the maximum value in the signal radiation angle range combined with the antenna unit;
and the evaluation unit is used for evaluating the synchronous consistency among all the antenna units in the array antenna to be tested and the amplitude-phase consistency of the receiving channel according to the gain deviation of each antenna unit.
The beneficial effects of the above technical scheme are: the synchronous consistency and the amplitude-phase consistency of the receiving channels can be accurately evaluated according to the self transmitting and receiving signal gain of each antenna unit by evaluating the synchronous consistency and the amplitude-phase consistency of all the antenna units in the array antenna to be tested according to the gain deviation of each antenna unit, so that the evaluation result is more accurate.
In one embodiment, the step of determining, by the determining module, the received signal quality of the receiving channel of the array antenna under test according to the test result includes:
acquiring a receiving signal of the array antenna to be tested according to the test result;
carrying out self-adaptive processing on the received signals, and constructing a received signal matrix according to a processing result;
carrying out eigenvalue decomposition on the received signal matrix, and determining a main signal frequency spectrum and a noise signal frequency spectrum of the received signal frequency spectrum according to a decomposition result;
and determining the fluctuation condition of the received signal according to the main signal frequency spectrum, and determining the quality of the received signal of the receiving channel of the array antenna to be tested based on the fluctuation condition.
The beneficial effects of the above technical scheme are: the main signal frequency spectrum and the noise signal frequency spectrum of the received signal frequency spectrum are divided, so that the influence of noise signals can be effectively avoided, the evaluation accuracy of the received signal quality of the receiving channel of the array antenna to be tested is ensured, and the precision is improved.
In one embodiment, the step of calculating, by the calculation module, a signal attenuation rate of a receiving channel of the array antenna to be measured according to the received signal quality and an initial signal quality of a preset signal includes:
evaluating the signal impulse response of the receiving channel according to the difference between the quality of the receiving signal and a preset signal and the gain parameter of the receiving channel;
constructing a variance matrix of signal impulse response of a receiving channel;
determining the convergence of a receiving channel according to the relation between the variance matrix and the parameter vector of the receiving channel;
determining a current scattering beam pattern of the array antenna to be detected when a preset signal is received according to the convergence;
constructing a standard scattering beam pattern of the array antenna to be detected when a preset signal is received by using the planar frequency control array of each antenna unit in the array antenna to be detected;
determining energy weight distribution corresponding to the current scattering beam pattern and the standard scattering beam pattern according to a preset energy distribution rule;
constructing respective energy weight matrixes of the current scattering beam pattern and the standard scattering beam pattern according to the respective corresponding energy weight distribution of the current scattering beam pattern and the standard scattering beam pattern;
comparing matrix factors at the same position between the two matrixes to obtain a comparison result;
determining the change condition of each matrix factor in the energy weight matrix of the standard scattering beam pattern according to the comparison result;
determining the change condition of the characteristic quantity between the received signal and the preset signal according to the change condition of each matrix factor;
determining attenuation characteristics of the changed characteristic quantity according to the change condition of the characteristic quantity;
and determining the signal attenuation rate of the receiving channel of the array antenna to be tested according to the attenuation characteristic of the change characteristic quantity and the initial characteristic quantity of the preset signal.
The beneficial effects of the above technical scheme are: the signal attenuation rate of the receiving channel can be accurately evaluated by determining the characteristic quantity with the attenuation characteristic in the preset signal and further evaluating the signal attenuation rate of the receiving channel according to the characteristic quantity change of the preset signal in the process of transmitting the preset signal to the array antenna to be tested through the receiving channel, the influence of the self-set parameters of the receiving channel on the evaluation result is ignored, so that the evaluation result is adaptive to the receiving channel under any condition, and the practicability is further improved.
It will be appreciated by those skilled in the art that the first, second, third and fourth of the present invention refer to different stages of application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. An antenna consistency testing platform system for facilitating maintenance, the system comprising:
the building module is used for building a virtual test environment according to the array antenna to be tested and a preset transmitting antenna;
the generating module is used for generating a test signal and uploading the test signal to the preset transmitting antenna so as to transmit the test signal to a receiving channel of the array antenna to be tested;
the acquisition module is used for acquiring phase radiation direction data of the array antenna to be detected according to a signal feedback result of the array antenna to be detected;
and the evaluation module is used for evaluating the synchronization consistency of each antenna unit in the array antenna to be tested and the amplitude-phase consistency of the receiving channel of the antenna unit according to the phase radiation direction data of the array antenna to be tested.
2. The antenna consistency detection platform system convenient to maintain according to claim 1, wherein the building module comprises:
the first obtaining submodule is used for obtaining respective arrangement modes of the array antenna to be detected and the transmitting antenna;
the scanning submodule is used for selecting a target scanning item based on the arrangement mode, scanning the array antenna to be detected and the transmitting antenna by using the target scanning item, and acquiring a scanning array, wherein the target scanning item comprises: one-dimensional scanning or two-dimensional scanning;
the second acquisition submodule is used for respectively acquiring standard working parameters corresponding to the array antenna to be tested and the transmitting antenna, and calculating the environment parameters of the virtual test environment according to the standard working parameters;
and the construction submodule is used for constructing a virtual test environment according to the scanning array and the environment parameters.
3. The antenna consistency detection platform system convenient to maintain according to claim 1, wherein the generation module comprises:
the first determining submodule is used for determining the standard receiving signal frequency range of the array antenna to be detected;
the first generation submodule is used for generating a test signal of a target frequency according to the standard receiving signal frequency range of the array antenna to be tested and by combining the working signal frequency interval of the transmitting antenna;
the leading-in submodule is used for leading the test signal of the target frequency into a preset transmitting channel of a transmitting antenna;
and the control submodule is used for controlling the transmitting antenna to transmit the test signal of the target frequency to the receiving channel of the array antenna to be tested through the preset transmitting channel.
4. The easy-to-maintain antenna consistency detection platform system according to claim 3, wherein the generation module further comprises:
a second determining submodule, configured to determine a frequency domain variation range of the test signal;
the calculation submodule is used for calculating a frequency domain estimation value of a preset sending channel according to the frequency domain variation range;
the third determining submodule is used for determining a frequency domain calibration coefficient of the test signal according to the frequency domain estimated value and the frequency domain variation range of the test signal;
and the calibration submodule is used for calibrating the target frequency of the test signal according to the frequency domain calibration coefficient, acquiring a calibration result and uploading the calibration result to the import submodule.
5. The easy-to-maintain antenna uniformity inspection platform system of claim 1, further comprising:
the test module is used for carrying out transmission test on a receiving channel of the array antenna to be tested by using a preset signal to obtain a test result;
the determining module is used for determining the quality of the received signal of the receiving channel of the array antenna to be tested according to the test result;
the calculation module is used for calculating the signal attenuation rate of a receiving channel of the array antenna to be detected according to the quality of the receiving signal and the initial signal quality of a preset signal;
and the enhancement module is used for enhancing the test signal based on the signal attenuation rate to obtain the enhanced test signal.
6. The easy-to-maintain antenna consistency detection platform system according to claim 1, wherein the obtaining module comprises:
the fourth determining submodule is used for determining a plurality of state responses of the array antenna to be tested to the test signals according to the signal feedback result of the array antenna to be tested;
the second generation submodule is used for generating a response equation set of the array antenna to be tested relative to the test signal according to the plurality of state responses;
the solving submodule is used for solving the response equation set by taking the radiation range of the array antenna signal to be detected as an independent variable to obtain a solving result;
and the third acquisition submodule is used for acquiring the phase radiation direction data of the array antenna to be detected according to the solving result.
7. The antenna consistency detection platform system convenient to maintain according to claim 1, wherein the evaluation module comprises:
a fifth determining submodule, configured to determine a distribution situation of each antenna unit on the array antenna to be tested;
a sixth determining submodule, configured to determine, according to a distribution situation of each antenna unit on the array antenna to be detected, a signal radiation angle range of the antenna unit;
the antenna unit is also used for determining sub-phase radiation direction data of each antenna unit according to the signal radiation angle range of each antenna unit and the phase radiation direction data of the array antenna to be detected;
and the evaluation submodule is used for evaluating the synchronization consistency of the antenna units and the amplitude consistency of the receiving channel according to the sub-phase radiation direction data of each antenna unit.
8. The antenna consistency detection platform system convenient to maintain according to claim 7, wherein the evaluation sub-module comprises:
the acquisition unit is used for acquiring the maximum value in the signal radiation angle range of each antenna unit according to the sub-phase radiation direction data of the antenna unit;
a determining unit for determining a signal reception gain of each antenna unit;
the computing unit is used for computing the gain deviation of each antenna unit according to the signal receiving gain of each antenna unit and the maximum value in the signal radiation angle range combined with the antenna unit;
and the evaluation unit is used for evaluating the synchronization consistency among all the antenna units in the array antenna to be tested and the amplitude consistency of the receiving channel according to the gain deviation of each antenna unit.
9. The easy-to-maintain antenna consistency testing platform system according to claim 5, wherein the step of determining, by the determining module, the received signal quality of the receiving channel of the array antenna under test according to the test result comprises:
acquiring a receiving signal of the array antenna to be tested according to the test result;
carrying out self-adaptive processing on the received signals, and constructing a received signal matrix according to a processing result;
carrying out eigenvalue decomposition on the received signal matrix, and determining a main signal frequency spectrum and a noise signal frequency spectrum of the received signal frequency spectrum according to a decomposition result;
and determining the fluctuation condition of the received signal according to the main signal frequency spectrum, and determining the quality of the received signal of the receiving channel of the array antenna to be tested based on the fluctuation condition.
10. The easy-to-maintain antenna consistency testing platform system according to claim 5, wherein the step of calculating, by the calculating module, the signal attenuation rate of the receiving channel of the array antenna to be tested according to the received signal quality and the initial signal quality of the preset signal comprises:
evaluating the signal impulse response of the receiving channel according to the difference between the quality of the receiving signal and a preset signal and the gain parameter of the receiving channel;
constructing a variance matrix of signal impulse response of a receiving channel;
determining the convergence of a receiving channel according to the relation between the variance matrix and the parameter vector of the receiving channel;
determining a current scattering beam pattern of the array antenna to be detected when a preset signal is received according to the convergence;
constructing a standard scattering beam pattern of the array antenna to be detected when a preset signal is received by using the planar frequency control array of each antenna unit in the array antenna to be detected;
determining energy weight distribution corresponding to the current scattering beam pattern and the standard scattering beam pattern according to a preset energy distribution rule;
constructing respective energy weight matrixes of the current scattering beam pattern and the standard scattering beam pattern according to the respective corresponding energy weight distribution of the current scattering beam pattern and the standard scattering beam pattern;
comparing matrix factors at the same position between the two matrixes to obtain a comparison result;
determining the change condition of each matrix factor in the energy weight matrix of the standard scattering beam pattern according to the comparison result;
determining the change condition of the characteristic quantity between the received signal and the preset signal according to the change condition of each matrix factor;
determining attenuation characteristics of the changed characteristic quantity according to the change condition of the characteristic quantity;
and determining the signal attenuation rate of the receiving channel of the array antenna to be tested according to the attenuation characteristic of the change characteristic quantity and the initial characteristic quantity of the preset signal.
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