CN113820675B - Radar testing method, device, equipment and storage medium - Google Patents
Radar testing method, device, equipment and storage medium Download PDFInfo
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- CN113820675B CN113820675B CN202111280285.5A CN202111280285A CN113820675B CN 113820675 B CN113820675 B CN 113820675B CN 202111280285 A CN202111280285 A CN 202111280285A CN 113820675 B CN113820675 B CN 113820675B
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- 238000012360 testing method Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 21
- 238000010998 test method Methods 0.000 claims abstract description 14
- 230000008569 process Effects 0.000 claims description 13
- 230000008054 signal transmission Effects 0.000 claims description 13
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
- G01S7/4004—Means for monitoring or calibrating of parts of a radar system
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Abstract
The application discloses a radar test method, a device, equipment and a storage medium, wherein the method comprises the following steps: acquiring first power of a radar signal transmitted by a radar to be detected and second power of a detection signal, wherein the detection signal is obtained after the target antenna detects the radar signal, and the target antenna is fixed at a target position; performing loss analysis based on the first power and the second power to obtain path loss information; the radar to be detected is controlled to locate and identify a target object under the interference signal, target locating information corresponding to the interference signal is obtained, and the interference signal is a signal of target power transmitted by an interference source through a target antenna; performing power calibration on an interference signal received by a radar to be tested based on target power and path loss information to obtain calibration power of the interference signal; and generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information. By utilizing the scheme provided by the application, the objectivity and accuracy of the noise immunity test result can be improved.
Description
Technical Field
The application relates to the technical field of vehicle radars, in particular to a radar testing method, a radar testing device, radar testing equipment and a storage medium.
Background
As the application of vehicle millimeter wave radar in the automatic driving field is increasing, the performance of the vehicle millimeter wave radar in the aspect of noise immunity is widely focused. The existing radar immunity testing method is that various interference signals are generated through an interference source, the radar to be tested in a working state is interfered, target identification conditions of the radar to be tested under the interference signals with different powers are counted, and the transmitting power value displayed by the interference source is used as the interference power value received by the radar to be tested.
However, even if the interference source transmits interference signals with the same frequency, when the angle or distance between the interference source and the radar to be tested is different and the gain of the receiving antenna of the radar to be tested is different, the power of the effective interference signal received by the radar to be tested is also different, so that the interference resistance test results between different test sites and different radars are greatly different, and the objectivity and accuracy of the interference resistance test results are reduced. Thus, there is a need to provide a more accurate radar test method.
Disclosure of Invention
The application provides a radar test method, a device, equipment and a storage medium, which can eliminate signal power attenuation difference in the test process, thereby improving objectivity and accuracy of an immunity test result, and the technical scheme of the application is as follows:
In one aspect, a radar testing method is provided, the method comprising:
Acquiring first power of a radar signal transmitted by a radar to be detected and second power of a detection signal, wherein the detection signal is obtained after a target antenna detects the radar signal, and the target antenna is fixed at a target position;
Performing loss analysis based on the first power and the second power to obtain path loss information;
the radar to be detected is controlled to locate and identify a target object under an interference signal, so as to obtain target locating information corresponding to the interference signal, wherein the interference signal is a signal of target power transmitted by an interference source through the target antenna;
Performing power calibration on an interference signal received by the radar to be detected based on the target power and the path loss information to obtain the calibration power of the interference signal;
and generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
In another aspect, there is provided a radar testing apparatus, the apparatus comprising:
the power acquisition module is used for acquiring first power of radar signals transmitted by the radar to be detected and second power of detection signals, wherein the detection signals are obtained after the target antenna detects the radar signals, and the target antenna is fixed at a target position;
the loss analysis module is used for carrying out loss analysis based on the first power and the second power to obtain path loss information;
The positioning identification module is used for controlling the radar to be detected to perform positioning identification on a target object under an interference signal to obtain target positioning information corresponding to the interference signal, wherein the interference signal is a signal of target power transmitted by an interference source through the target antenna;
The power calibration module is used for carrying out power calibration on the interference signal received by the radar to be detected based on the target power and the path loss information to obtain the calibration power of the interference signal;
and the test result generation module is used for generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
In another aspect, a radar test device is provided, the device comprising a processor and a memory, the memory storing at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by the processor to implement a radar test method as described above.
In another aspect, a computer readable storage medium having stored therein at least one instruction or at least one program loaded and executed by a processor to implement a radar test method as described above is provided.
The radar test method, the radar test device, the radar test equipment and the storage medium provided by the application have the following technical effects:
The technical scheme provided by the application can determine the path loss information of the radar signal transmitted from the radar position to the target position based on reciprocity, and transmit the path loss information as the path loss information of the interference signal transmitted from the target position to the radar position, so that the power of the interference signal received by the radar is calibrated, and the target positioning information obtained by positioning and identifying the target object under the interference signal is generated according to the target positioning information obtained by positioning and identifying the target object under the interference signal of the radar to be tested, thereby eliminating the signal power attenuation difference caused by different angles or distances between the interference source and the radar to be tested, and further improving the objectivity and accuracy of the interference immunity test result.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions and advantages of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a radar test method according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a radar test system according to an embodiment of the present application;
fig. 3 is a schematic flow chart of obtaining path loss information by performing loss analysis based on the first power and the second power according to an embodiment of the present application;
FIG. 4 is a schematic diagram of another radar test system according to an embodiment of the present application;
fig. 5 is a schematic flow chart of power calibration for an interference signal received by the radar to be tested based on the target power and the path loss information to obtain a calibrated power of the interference signal according to an embodiment of the present application;
FIG. 6 is a flowchart illustrating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information according to the embodiment of the present application;
FIG. 7 is a schematic flow chart of another radar testing method according to an embodiment of the present application;
Fig. 8 is a schematic diagram of a radar testing apparatus according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or server that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the following, a radar test method provided by an embodiment of the present application is described, and fig. 1 is a schematic flow chart of a radar test method provided by an embodiment of the present application. It is noted that the present specification provides method operational steps as described in the examples or flowcharts, but may include more or fewer operational steps based on conventional or non-inventive labor. The order of steps recited in the embodiments is merely one way of performing the order of steps and does not represent a unique order of execution. In actual system or product execution, the methods illustrated in the embodiments or figures may be performed sequentially or in parallel (e.g., in a parallel processor or multi-threaded processing environment). As shown in fig. 1, the method may include:
s101, acquiring first power of a radar signal emitted by a radar to be detected and second power of a detection signal, wherein the detection signal is obtained after a target antenna detects the radar signal, and the target antenna is fixed at a target position.
In the embodiment of the present specification, the radar to be measured may be a millimeter wave radar, and the types of the radar to be measured may include, but are not limited to, a vehicle millimeter wave radar, a traffic millimeter wave radar, a somatosensory millimeter wave radar, and the like.
Specifically, the radar signal can be obtained by controlling the radar to be detected to transmit the signal with the first power, wherein specific data of the first power can be combined with the transmitting power range of the radar to be detected in practical application and set through an upper computer of the radar to be detected.
Specifically, the second power may be obtained by controlling the power measurement module to perform power measurement on the detection signal by using a target antenna, where the target antenna is fixed at a target position. In practice, the target location may be set in conjunction with the range of the test site, and the power measurement module may include, but is not limited to, a spectrum analyzer and a power meter.
In a specific embodiment, as shown in fig. 2, fig. 2 is a schematic diagram of a radar test system according to an embodiment of the present application, where an application scenario of the radar test system may be an anechoic chamber, and the radar test system may include: the radar testing device comprises radar testing equipment, a radar to be tested, a target object and power measuring equipment, wherein the radar to be tested is provided with a transmitting antenna and a receiving antenna, the target object is connected with a corresponding antenna through a signal transmission line, the power measuring equipment is connected with the target antenna fixed at a target position through the signal transmission line, and the radar testing equipment can communicate with the radar to be tested through the signal transmission line. Specifically, the radar to be detected transmits radar signals with first power through the transmitting antenna, the target antenna detects the radar signals to obtain detection signals, and the power measurement module measures the power of the detection signals to obtain second power.
And S103, carrying out loss analysis based on the first power and the second power to obtain path loss information.
In this embodiment of the present disclosure, as shown in fig. 3, the performing loss analysis based on the first power and the second power to obtain path loss information may include:
s301, obtaining first gain information of a transmitting antenna of the radar to be detected.
Specifically, the first gain information may be used to measure the extent to which the transmitting antenna radiates the input power in a concentrated manner, where the higher the first gain information, the higher the intensity of the radar signal transmitted by the transmitting antenna. In practical applications, the first gain information of the transmitting antenna may be preset according to the actual performance of the antenna.
And S303, carrying out loss analysis based on the first power, the second power and the first gain information to obtain the path loss information.
In this embodiment of the present disclosure, the above path loss information may be used to measure the power attenuation of a first signal transmission path between a transmitting antenna of a radar to be measured and a target antenna, specifically, according to the sum of the first power and the first gain information, obtain the actual transmitting power of the radar to be measured, and then according to the difference between the actual transmitting power and the second power, obtain the path loss information, that is, the first power+the first gain information-the second power=the path loss information, and according to the reciprocity of the transmission path, the path loss information is also the path loss information of a second signal transmission path between the target antenna and a receiving antenna of the radar to be measured.
According to the embodiment, according to the reciprocity of the transmission path, the influence of the transmission path and the antenna gain on the signal power attenuation is considered, and the path loss information between the radar to be detected and the target antenna is determined based on the first power, the second power and the first gain information, so that the accuracy of the path loss information is improved.
S105, controlling the radar to be detected to locate and identify a target object under an interference signal to obtain target locating information corresponding to the interference signal, wherein the interference signal is a signal of target power transmitted by an interference source through the target antenna.
In the embodiment of the present specification, the target object may be a target simulation device for detecting positioning tracking performance of the radar to be detected, and specifically, the target object may include, but is not limited to, a target simulator and a radar reflector. The target positioning information may include, but is not limited to, position information and movement speed of the target object.
In practical applications, the target power may be set in combination with the actual requirements of the radar anti-interference test.
And S107, performing power calibration on the interference signal received by the radar to be detected based on the target power and the path loss information to obtain the calibration power of the interference signal.
Specifically, the interference signal may be transmitted by the interference source through the target antenna. In a specific embodiment, as shown in fig. 4, fig. 4 is a schematic diagram of another radar test system provided in an embodiment of the present application, where an application scenario of the radar test system may be an all-anechoic chamber, and the radar test system may include: the radar test device comprises radar test equipment, a radar to be tested, a target object and an interference source, wherein the radar to be tested is provided with a transmitting antenna and a receiving antenna, the target object is connected with a corresponding antenna through a signal transmission line, the interference source is connected with the target antenna fixed at the target position through the signal transmission line, and the radar test equipment can communicate with the radar to be tested through the signal transmission line. Specifically, the power measurement module and the interference source both transmit and receive signals through the target antenna fixed at the target position, and the positions of the transmitting antenna and the receiving antenna of the radar to be detected are close to each other, so that the path loss of the interference signal in the second signal transmission path is ensured to be the path loss of the radar signal in the first signal transmission path.
In this embodiment of the present disclosure, as shown in fig. 5, performing power calibration on the interference signal received by the radar to be detected based on the target power and the path loss information, to obtain the calibrated power of the interference signal may include:
S501, obtaining second gain information of a receiving antenna of the radar to be detected.
Specifically, the second gain information may be used to measure the capability of the receiving antenna to receive signals, where the higher the second gain information, the higher the strength of the interference signal received by the receiving antenna. In practical applications, the second gain information of the receiving antenna may be preset according to the actual performance of the antenna.
And S503, performing power calibration on the target power based on the path loss information and the second gain information to obtain the calibration power.
Specifically, according to the difference between the calibration power and the second gain information, the actual received power of the radar to be measured is obtained, and the difference between the target power and the actual received power is the path loss information, so that the calibration power=target power+second gain information-path loss information can be obtained from the target power- (calibration power-second gain information) =path loss information.
According to the above embodiment, according to the reciprocity of the transmission path, the influence of the transmission path and the antenna gain on the signal power attenuation is considered, and the power calibration is performed on the target power of the interference signal based on the path loss information and the second gain information, so that the accuracy of the power record of the interference signal received by the radar is improved.
And S109, generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
In this embodiment of the present disclosure, as shown in fig. 6, the generating, based on the target positioning information, the anti-interference test result of the radar to be measured under the interference signal of the calibration power may include:
S601, acquiring preset positioning information of the target object.
Specifically, the preset positioning information may include, but is not limited to, preset position information and preset movement speed.
S603, performing accuracy analysis on the target positioning information based on the preset positioning information to obtain the accuracy of the target positioning information.
S605, based on the accuracy of the target positioning information, generating the anti-interference test result.
In an alternative embodiment, the target object can be placed according to the preset position information, so that the radar to be detected is controlled to perform positioning identification on the target object located at the preset position under the interference signal, and target positioning information corresponding to the interference signal is obtained; performing accuracy analysis on the target positioning information according to preset positioning information to obtain the accuracy of the target positioning information; and taking the accuracy as an anti-interference test result of the radar to be tested under the interference signal of the current calibration power.
In a specific embodiment, as shown in fig. 7, the method may further include:
S701, increasing the target power to obtain an increased power.
And S703, repeatedly executing the test process of controlling the radar to be tested to perform positioning identification on a target object under the interference signal based on the increased power, obtaining target positioning information corresponding to the interference signal to the test process of generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information until the anti-interference test result under the current interference signal meets the preset condition.
In practical application, as the target power increases, the accuracy of the corresponding target positioning information generally decreases, so the preset condition may be that the accuracy of the target positioning information corresponding to the current interference signal is smaller than a preset threshold or that the radar to be detected cannot normally identify the target object under the current interference signal, where the preset threshold may be set in combination with the accuracy requirement of the anti-interference test of the radar to be detected in practical application.
And S705, obtaining the maximum anti-interference degree information of the radar to be detected based on the calibration power of the current interference signal.
In the embodiment of the present disclosure, the maximum interference rejection information may be used to measure the interference rejection of the radar to be tested. Specifically, the target power of the interference signal of the interference source can be gradually increased from an initial value to the point that the radar to be detected cannot normally identify the target object or the accuracy of the corresponding target positioning information is smaller than a preset threshold value, the calibration power of the interference signal at the moment is determined, the calibration power is used as the maximum anti-interference power, and the initial value can be set according to the range of the actual transmitting power of the interference source and the actual requirement of the radar anti-interference test.
In practical application, the maximum anti-interference information of the radar to be detected can be determined by the maximum anti-interference power, and the larger the maximum anti-interference power is, the stronger the maximum anti-interference of the radar to be detected is.
According to the embodiment, the target power is gradually increased to obtain the target positioning information for positioning and identifying the target object under the corresponding interference signal by the radar to be tested, and the maximum anti-interference power is determined based on the reduction of the accuracy of the corresponding target positioning information, so that the maximum anti-interference information of the radar to be tested is obtained, and the objectivity and accuracy of the radar anti-interference test are improved.
In some embodiments, after the performing the loss analysis based on the first power and the second power to obtain the path loss information, in the case of updating the target location, the method may further include:
Based on the updated position, executing the test process from acquiring the first power of the radar signal transmitted by the radar to be tested and the second power of the detection signal to generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
Specifically, when the target position is updated, the signal transmission path between the interference source and the radar to be tested is updated, so that the path loss information is changed, the test process is required to be re-executed, and the accuracy of the anti-interference test result of the radar to be tested is ensured.
In some embodiments, when the first gain information of the transmitting antenna and/or the second gain information of the receiving antenna of the radar to be tested are updated, the above test process needs to be re-executed, so as to ensure the accuracy of the anti-interference test result of the radar to be tested.
As can be seen from the embodiments of the above description, by using the technical solution provided in the embodiments of the present disclosure, on one hand, path loss information of a radar signal transmitted from a radar position to a target position is determined based on reciprocity, and the path loss information is used as path loss information of an interference signal transmitted from the target position to the radar position, so that power of the interference signal received by the radar is calibrated, signal power attenuation difference caused by different angles or distances between an interference source and the radar to be detected is eliminated, and accuracy of power recording of the interference signal received by the radar is improved; on the other hand, according to target positioning information obtained by positioning and identifying a target object under an interference signal of a radar to be detected, an anti-interference test result of the radar to be detected under the interference signal of the calibration power is generated, the target positioning information of the radar to be detected for positioning and identifying the target object under a corresponding interference signal is obtained by gradually increasing the target power, and the maximum anti-interference power is determined based on the reduction of the accuracy of the corresponding target positioning information, so that the maximum anti-interference degree information of the radar to be detected is obtained, and the objectivity and accuracy of the anti-interference test result of the radar are improved.
An embodiment of the present application provides a radar testing apparatus, as shown in fig. 8, where the apparatus may include:
the power acquisition module 810 is configured to acquire a first power of a radar signal transmitted by a radar to be detected and a second power of a detection signal, where the detection signal is obtained after the radar signal is detected by a target antenna, and the target antenna is fixed at a target position;
a loss analysis module 820, configured to perform loss analysis based on the first power and the second power, to obtain path loss information;
The positioning recognition module 830 is configured to control the radar to be detected to perform positioning recognition on a target object under an interference signal, so as to obtain target positioning information corresponding to the interference signal, where the interference signal is a signal of target power emitted by an interference source through the target antenna;
A power calibration module 840, configured to perform power calibration on an interference signal received by the radar to be detected based on the target power and the path loss information, so as to obtain a calibrated power of the interference signal;
The test result generating module 850 is configured to generate an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
In the embodiment of the present specification, the loss analysis module 820 may include:
a first gain information obtaining unit, configured to obtain first gain information of a transmitting antenna of the radar to be detected;
And a path loss information determining unit, configured to perform loss analysis based on the first power, the second power, and the first gain information, to obtain the path loss information.
In the embodiment of the present disclosure, the power calibration module 840 may include:
a second gain information obtaining unit, configured to obtain second gain information of a receiving antenna of the radar to be detected;
And a calibration power determining unit, configured to perform power calibration on the target power based on the path loss information and the second gain information, to obtain the calibration power.
In an embodiment of the present disclosure, the test result generating module 850 may include:
a preset positioning information obtaining unit, configured to obtain preset positioning information of the target object;
the accuracy determining unit is used for performing accuracy analysis on the target positioning information based on the preset positioning information to obtain the accuracy of the target positioning information;
and the anti-interference test result generating unit is used for generating the anti-interference test result based on the accuracy of the target positioning information.
In a specific embodiment, the apparatus may further include:
the power increasing module is used for increasing the target power to obtain increased power;
The repeated execution module is used for repeatedly executing the control of the radar to be detected to position and identify a target object under the interference signal based on the increased power, obtaining target positioning information corresponding to the interference signal to the test process of an anti-interference test result of the radar to be detected under the interference signal of the calibration power based on the target positioning information until the anti-interference test result under the current interference signal meets the preset condition;
And the maximum anti-interference information generation module is used for obtaining the maximum anti-interference information of the radar to be detected based on the calibration power of the current interference signal.
The embodiment of the application provides radar test equipment which can be an upper computer of a radar to be tested, and comprises a processor and a memory, wherein at least one instruction or at least one section of program is stored in the memory, and the at least one instruction or the at least one section of program is loaded and executed by the processor so as to realize the radar test method provided by the embodiment of the method.
The memory may be used to store software programs and modules that the processor executes to perform various functional applications and data processing by executing the software programs and modules stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, application programs required for functions, and the like; the storage data area may store data created according to the use of the above-described device, or the like. In addition, the memory may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage device. Accordingly, the memory may also include a memory controller to provide access to the memory by the processor.
The method embodiments provided by the embodiments of the present application may be executed in an upper computer or a similar computing device, i.e., the computer apparatus may include an upper computer or a similar computing device.
The embodiment of the application also provides a storage medium, which can be arranged in a server to store at least one instruction or at least one section of program related to the radar test method used for realizing one of the method embodiments, and the at least one instruction or the at least one section of program is loaded and executed by the processor to realize the radar test method provided by the method embodiments.
Alternatively, in this embodiment, the storage medium may be located in at least one network server among a plurality of network servers of the computer network. Alternatively, in the present embodiment, the storage medium may include, but is not limited to: a usb disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, or other various media capable of storing program codes.
According to the embodiment of the radar test method, the device, the equipment or the storage medium, the technical scheme provided by the embodiment of the specification is utilized, on one hand, the path loss information of the radar signal transmitted from the radar position to the target position is determined based on reciprocity, and the path loss information is used as the path loss information of the interference signal transmitted from the target position to the radar position, so that the power of the interference signal received by the radar is calibrated, the signal power attenuation difference caused by different angles or distances between the interference source and the radar to be tested is eliminated, and the accuracy of the power record of the interference signal received by the radar is improved; on the other hand, according to target positioning information obtained by positioning and identifying a target object under an interference signal of a radar to be detected, an anti-interference test result of the radar to be detected under the interference signal of the calibration power is generated, the target positioning information of the radar to be detected for positioning and identifying the target object under a corresponding interference signal is obtained by gradually increasing the target power, and the maximum anti-interference power is determined based on the reduction of the accuracy of the corresponding target positioning information, so that the maximum anti-interference degree information of the radar to be detected is obtained, and the objectivity and accuracy of the anti-interference test result of the radar are improved.
It should be noted that: the sequence of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments. And the foregoing description has been directed to specific embodiments of this specification. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for apparatus, devices and storage medium embodiments, the description is relatively simple as it is substantially similar to method embodiments, with reference to the description of method embodiments in part.
Those of ordinary skill in the art will appreciate that all or a portion of the steps implementing the above embodiments may be implemented by hardware, or may be implemented by a program indicating that the relevant hardware is implemented, where the program may be stored on a computer readable storage medium, where the storage medium may be a read only memory, a magnetic disk or optical disk, etc.
The foregoing description of the preferred embodiments of the application is not intended to limit the application to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the application are intended to be included within the scope of the application.
Claims (10)
1. A radar testing method, the method comprising:
The method comprises the steps of obtaining first power of a radar signal transmitted by a radar to be detected and second power of a detection signal, wherein the radar signal is obtained by controlling the radar to be detected to transmit the radar signal with the first power, the detection signal is obtained by detecting the radar signal by a target antenna, the target antenna is fixed at a target position, and the second power is obtained by controlling a power measuring module to measure the power of the detection signal by the target antenna;
Performing loss analysis based on the first power and the second power to obtain path loss information, wherein the path loss information is used for measuring the power attenuation condition of a signal transmission path between an antenna of the radar to be measured and the target antenna;
the radar to be detected is controlled to locate and identify a target object under an interference signal, so as to obtain target locating information corresponding to the interference signal, wherein the interference signal is a signal of target power transmitted by an interference source through the target antenna;
Performing power calibration on an interference signal received by the radar to be detected based on the target power and the path loss information to obtain the calibration power of the interference signal;
and generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
2. The method of claim 1, wherein the performing loss analysis based on the first power and the second power to obtain path loss information comprises:
Acquiring first gain information of a transmitting antenna of the radar to be detected;
and carrying out loss analysis based on the first power, the second power and the first gain information to obtain the path loss information.
3. The method of claim 2, wherein performing power calibration on the interference signal received by the radar under test based on the target power and the path loss information, to obtain the calibrated power of the interference signal comprises:
acquiring second gain information of a receiving antenna of the radar to be detected;
and carrying out power calibration on the target power based on the path loss information and the second gain information to obtain the calibration power.
4. The method of claim 1, wherein the second power is obtained by controlling a power measurement module to perform power measurement on the probe signal using the target antenna.
5. The method of claim 1, wherein generating an anti-interference test result of the radar under test under an interference signal of the calibration power based on the target positioning information comprises:
acquiring preset positioning information of the target object;
based on the preset positioning information, accuracy analysis is carried out on the target positioning information, and accuracy of the target positioning information is obtained;
And generating the anti-interference test result based on the accuracy of the target positioning information.
6. The method of claim 5, wherein the method further comprises:
Increasing the target power to obtain an increased power;
based on the increased power, repeatedly executing the control of the radar to be detected to locate and identify a target object under an interference signal, obtaining target locating information corresponding to the interference signal to the test process of an anti-interference test result of the radar to be detected under the interference signal of the calibration power based on the target locating information until the anti-interference test result under the current interference signal meets a preset condition;
And obtaining the maximum anti-interference degree information of the radar to be detected based on the calibration power of the current interference signal.
7. The method according to any one of claims 1 to 6, wherein after said performing a loss analysis based on said first power and said second power, obtaining path loss information, in case of said target location update, the method further comprises:
And based on the updated position, executing the test process from acquiring the first power of the radar signal transmitted by the radar to be tested and the second power of the detection signal to generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
8. A radar testing apparatus, the apparatus comprising:
The power acquisition module is used for acquiring first power of a radar signal transmitted by a radar to be detected and second power of a detection signal, the radar signal is obtained by controlling the radar to be detected to transmit the signal with the first power, the detection signal is obtained by detecting the radar signal by a target antenna, the target antenna is fixed at a target position, and the second power is obtained by controlling the power measurement module to measure the power of the detection signal by the target antenna;
the loss analysis module is used for carrying out loss analysis based on the first power and the second power to obtain path loss information, and the path loss information is used for measuring the power attenuation condition of a signal transmission path between an antenna of the radar to be detected and the target antenna;
The positioning identification module is used for controlling the radar to be detected to perform positioning identification on a target object under an interference signal to obtain target positioning information corresponding to the interference signal, wherein the interference signal is a signal of target power transmitted by an interference source through the target antenna;
The power calibration module is used for carrying out power calibration on the interference signal received by the radar to be detected based on the target power and the path loss information to obtain the calibration power of the interference signal;
and the test result generation module is used for generating an anti-interference test result of the radar to be tested under the interference signal of the calibration power based on the target positioning information.
9. A radar testing apparatus, characterized in that the apparatus comprises a processor and a memory, in which at least one instruction or at least one program is stored, which is loaded and executed by the processor to implement the radar testing method according to any one of claims 1 to 7.
10. A computer readable storage medium having stored therein at least one instruction or at least one program, the at least one instruction or the at least one program being loaded and executed by a processor to implement the radar test method of any one of claims 1 to 7.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170036384A (en) * | 2015-09-24 | 2017-04-03 | 국방기술품질원 | RADAR apparatus, apparatus and method for controlling RADAR |
| CN107422312A (en) * | 2017-07-07 | 2017-12-01 | 西安电子科技大学 | Cheating interference signal transmission power method of estimation |
| CN110208758A (en) * | 2018-06-29 | 2019-09-06 | 北京润科通用技术有限公司 | A kind of automobile-used millimetre-wave radar test macro and method |
| CN110441740A (en) * | 2019-08-20 | 2019-11-12 | 南京航空航天大学 | Distributed MIMO radar robust power distribution method based on layering game |
| CN110471049A (en) * | 2019-07-26 | 2019-11-19 | 西安电子科技大学 | Wireless communication interference source localization method based on measurement radiant power |
| WO2020108270A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Radar and target detection method |
| JP2021099272A (en) * | 2019-12-23 | 2021-07-01 | 株式会社東芝 | Radar device and interference reducing method |
| CN113109771A (en) * | 2021-03-18 | 2021-07-13 | 中国气象局气象探测中心 | Calibration device for calibrator and weather radar echo intensity true value calibration method |
| CN113156389A (en) * | 2021-03-05 | 2021-07-23 | 西安电子科技大学 | Adaptive OFDM radar communication integrated signal generation method |
-
2021
- 2021-10-29 CN CN202111280285.5A patent/CN113820675B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170036384A (en) * | 2015-09-24 | 2017-04-03 | 국방기술품질원 | RADAR apparatus, apparatus and method for controlling RADAR |
| CN107422312A (en) * | 2017-07-07 | 2017-12-01 | 西安电子科技大学 | Cheating interference signal transmission power method of estimation |
| CN110208758A (en) * | 2018-06-29 | 2019-09-06 | 北京润科通用技术有限公司 | A kind of automobile-used millimetre-wave radar test macro and method |
| WO2020108270A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Radar and target detection method |
| CN111257880A (en) * | 2018-11-30 | 2020-06-09 | 深圳市海思半导体有限公司 | Radar and target detection method |
| CN110471049A (en) * | 2019-07-26 | 2019-11-19 | 西安电子科技大学 | Wireless communication interference source localization method based on measurement radiant power |
| CN110441740A (en) * | 2019-08-20 | 2019-11-12 | 南京航空航天大学 | Distributed MIMO radar robust power distribution method based on layering game |
| JP2021099272A (en) * | 2019-12-23 | 2021-07-01 | 株式会社東芝 | Radar device and interference reducing method |
| CN113156389A (en) * | 2021-03-05 | 2021-07-23 | 西安电子科技大学 | Adaptive OFDM radar communication integrated signal generation method |
| CN113109771A (en) * | 2021-03-18 | 2021-07-13 | 中国气象局气象探测中心 | Calibration device for calibrator and weather radar echo intensity true value calibration method |
Non-Patent Citations (2)
| Title |
|---|
| 带干扰雷达型目标模拟器校准方法;易磊;严宜强;李淼;;中国测试(第12期);18-23 * |
| 车载毫米波雷达技术及测试方法;苏赓;《电信网技术》(第6期);1-5 * |
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