CN114371450A - Radar anti-interference identification method and device and computer equipment - Google Patents
Radar anti-interference identification method and device and computer equipment Download PDFInfo
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- CN114371450A CN114371450A CN202111682650.5A CN202111682650A CN114371450A CN 114371450 A CN114371450 A CN 114371450A CN 202111682650 A CN202111682650 A CN 202111682650A CN 114371450 A CN114371450 A CN 114371450A
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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
- G01S7/36—Means for anti-jamming, e.g. ECCM, i.e. electronic counter-counter measures
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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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
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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
- G01S7/023—Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques
Abstract
The invention discloses a method, a device and computer equipment for radar anti-interference identification, wherein the method comprises the following steps of obtaining array parameters of an antenna array, wherein the array parameters comprise: a transmitting array element of the transmitting array and a receiving array element of the receiving array; constructing a sparse array based on a preset arrangement relation and the transmitting array elements and the receiving array elements; transmitting a first signal based on the sparse array and the noise source through a matched filter; receiving a first reflected signal of the first signal, wherein the first reflected signal is a signal which is reflected by a target object and transmits the first signal; and obtaining the information of the target object based on the first reflection signal. The all-round coverage of the transmitted detection signal is guaranteed by constructing the all-round sparse array, omission of a target object is avoided, the anti-interference performance of the signal is improved, array elements which are not required to be poplar are reduced, and unnecessary resource loss is avoided. The information of the target object can be accurately obtained based on the reflected signal and the transmitted signal, and the identification accuracy is improved.
Description
Technical Field
The invention relates to the technical field of radar anti-interference, in particular to a method and a device for radar anti-interference identification and computer equipment.
Background
In urban traffic, traffic radar is generally used for detecting information such as road flow, vehicle speed and the like, the traditional radar anti-interference technology is effective for a small-flow traffic environment or a closed traffic area, but is not useful or has poor anti-interference effect for a large-flow environment in urban traffic, so that a method capable of accurately identifying a target in the large-flow urban traffic is urgently needed to be provided, and the identification accuracy of the application traffic radar in the large-flow environment of the urban traffic is improved.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the defect of inaccurate identification of the existing radar technology in the urban large-flow environment, so that the invention provides a method, a device and computer equipment for radar anti-interference identification.
According to a first aspect, an embodiment of the present invention discloses a radar anti-interference identification method, including: acquiring array parameters of an antenna array, wherein the array parameters comprise: a transmitting array element of the transmitting array and a receiving array element of the receiving array; constructing a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relation; transmitting a first signal based on the sparse array through a matched filter; receiving a first reflected signal of the first signal, wherein the first reflected signal is a signal of the first signal reflected by a target object; and obtaining the information of the target object based on the first reflection signal.
Optionally, the constructing a sparse array based on the preset permutation relationship and the transmitting array elements and the receiving array elements includes: arranging the transmitting array elements and the receiving array elements according to the preset arrangement relation to obtain a synthetic array; constructing the sparse array based on the transmit array, receive array, and synthetic array.
Optionally, the obtaining information of the target object based on the first reflected signal includes: obtaining a first time difference based on the transmitted first signal and the first reflected signal; and obtaining the information of the target object based on the frequency of the transmitted first signal and the first time difference.
Optionally, before obtaining the information of the target object based on the first reflected signal, the method further includes: judging whether the signal-to-noise ratio of the first reflection signal meets a preset condition or not; and if the preset condition is met, obtaining the information of the target object based on the first reflection signal.
Optionally, the method further comprises: if the preset condition is not met, increasing the aperture of the transmitting array, and transmitting a second signal based on the sparse array and the noise source; receiving a second reflected signal of the second signal, wherein the second reflected signal is a signal of the second signal reflected by a target object; and obtaining the information of the target object based on the second reflection signal.
Optionally, the obtaining information of the target object based on the second reflected signal includes: obtaining a second time difference based on the second signal and a second reflected signal; and obtaining the information of the target object based on the frequency of the second signal and the second time difference.
According to a second aspect, an embodiment of the present invention further discloses an apparatus for radar anti-interference identification, including: an obtaining module, configured to obtain array parameters of an antenna array, where the array parameters include: a transmitting array element of the transmitting array and a receiving array element of the receiving array; the sparse array module is used for constructing a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relation; a transmitting module to transmit a first signal based on the sparse array through a matched filter; a receiving module, configured to receive a first reflected signal of the first signal, where the first reflected signal is a signal of the first signal reflected by a target object; and the target object information module is used for obtaining the information of the target object based on the first reflection signal.
According to a third aspect, an embodiment of the present invention further discloses a computer device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the steps of the method of radar tamper resistance identification according to the first aspect or any one of the alternative embodiments of the first aspect.
According to a fourth aspect, the embodiments of the present invention further disclose a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method for radar anti-interference identification according to the first aspect or any one of the optional embodiments of the first aspect.
The technical scheme of the invention has the following advantages:
the invention provides a radar anti-interference identification method, a device and computer equipment, wherein the method comprises the following steps: acquiring array parameters of an antenna array, wherein the array parameters comprise: a transmitting array element of the transmitting array and a receiving array element of the receiving array; constructing a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relation; transmitting a first signal based on the sparse array through a matched filter; receiving a first reflected signal of the first signal, wherein the first reflected signal is a signal of the first signal reflected by a target object; and obtaining the information of the target object based on the first reflection signal. The all-round coverage of the transmitted detection signal is guaranteed by constructing the all-round sparse array, omission of a target object is avoided, the anti-interference performance of the signal is improved, array elements which are not required to be poplar are reduced, and unnecessary resource loss is avoided. The information of the target object can be accurately obtained based on the reflected signal and the transmitted signal, and the identification accuracy is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a specific example of a method for radar tamper resistance identification in an embodiment of the present invention;
FIG. 2 is a schematic block diagram of a specific example of an apparatus for radar tamper-resistant identification in an embodiment of the present invention;
FIG. 3 is a diagram showing a specific example of a computer device according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating an exemplary method for radar anti-tamper identification in accordance with an embodiment of the present invention;
FIG. 5 is a diagram illustrating an exemplary method for radar tamper-resistant identification according to an embodiment of the present invention;
FIG. 6 is a diagram illustrating an exemplary method for radar anti-tamper identification in accordance with an embodiment of the present invention;
FIG. 7 is a diagram illustrating an exemplary method for radar tamper-resistant identification in accordance with an embodiment of the present invention;
fig. 8 is a schematic diagram of a specific example of a radar anti-jamming identification method in the embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
The embodiment of the invention discloses a radar anti-interference identification method, which comprises the following steps of:
step 101: acquiring array parameters of an antenna array, wherein the array parameters comprise: a transmitting array element of the transmitting array, and a receiving array element of the receiving array. Illustratively, the antenna array is an antenna system composed of antenna systems arranged in a certain rule, for example, in a linear arrangement, in a rectangular or circular arrangement, etc.; the independent units forming the antenna array are array elements. The antenna array includes a transmitting array for transmitting signals and a receiving array for receiving signals returned by the transmitting signals encountering the target object.
Step 102: and constructing a sparse array based on a preset arrangement relation and the transmitting array elements and the receiving array elements.
Illustratively, signals are transmitted from the transmitting array elements in each direction, so that the all-round coverage of the transmitted detection signals is ensured, and the problem that the reflected signals cannot be received or are not accurate due to the fact that the signals are transmitted only in one direction is solved, which is equivalent to a special case of the MIMO radar. In order to reduce some unnecessary resource loss, on the basis that the transmitting array elements in each direction transmit signals, some array elements are removed under the condition of not obviously changing the beam width of the array, a high-directivity array with reduced gain can be constructed by using array elements which are a fraction of the full array, the array is a sparse array, and the gain of a part of the array elements is reduced under the condition of not changing the performance. When constructing the sparse array, the sparse array may be constructed according to a Co-array algorithm, where the preset arrangement manner in the Co-array algorithm may be linear or circular, as shown in fig. 4, which is a schematic diagram of a linear array and a circular array constructed by the Co-array algorithm.
Step 103: transmitting a first signal based on the sparse array through a matched filter. Illustratively, the matched filter may be an es (element space) matched filter or a bs (beam space) matched filter constructed by an FMCW (Frequency Modulated Continuous Wave, hereinafter, FMCW) radar, where the FMCW radar implements accurate ranging and speed measurement of a target within a short distance, and may accurately identify a position and a speed of the target object. As shown in fig. 7, a schematic diagram of a transmit beam formed by a sparse array. The matched filter constructed based on the FMCW radar takes the frequency modulation continuous wave as the transmitting signal, so that the frequency of the received reflecting signal can be obtained according to the transmitting signal, the problem of unstable signal caused by the interference of the external signal is solved, and the anti-interference performance of the radar is improved.
Step 104: and receiving a first reflected signal of the first signal, wherein the first reflected signal is a signal of the first signal reflected by a target object.
Step 105: and obtaining the information of the target object based on the first reflection signal.
Illustratively, the FMCW radar transmits a signal with a high-frequency continuous wave, the frequency of the signal changes along with time according to a triangular wave rule, the frequency of a received echo is the same as the change rule of the transmitted frequency, the received echo is a triangular wave rule, only a time difference exists, and the target distance can be calculated by utilizing the small time difference. Therefore, when the target object is identified, the information such as the position, the speed and the like of the target object can be obtained only by obtaining the time difference between the reflected signal and the transmitted signal, and the interference of the noise signal is effectively reduced, so that the information of the target object can be accurately obtained. Fig. 8 is a schematic diagram of an implementation of an ES matched filter based on receiver and transmitter Co-array.
The radar anti-interference identification method provided by the invention comprises the following steps: acquiring array parameters of an antenna array, wherein the array parameters comprise: a transmitting array element of the transmitting array and a receiving array element of the receiving array; constructing a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relation; transmitting a first signal based on the sparse array through a matched filter; receiving a first reflected signal of the first signal, wherein the first reflected signal is a signal of the first signal reflected by a target object; and obtaining the information of the target object based on the first reflection signal. The all-round coverage of the transmitted detection signal is guaranteed by constructing the all-round sparse array, omission of a target object is avoided, the anti-interference performance of the signal is improved, array elements which are not required to be poplar are reduced, and unnecessary resource loss is avoided. The information of the target object can be accurately obtained based on the reflected signal and the transmitted signal, and the identification accuracy is improved.
As an alternative embodiment of the present invention, the step 105 includes: obtaining a first time difference based on the transmitted first signal and the first reflected signal; and obtaining the information of the target object based on the frequency of the transmitted first signal and the first time difference.
Illustratively, the principle of distance/velocity measurement of radar is described by taking a triangular frequency modulated continuous wave as an example according to the time difference between the transmission time and the reception time between the first reflected signal and the first signal. As shown in fig. 5, a thick line waveform is a transmission signal, a thin line waveform is a reception signal, a sweep period is T, a sweep bandwidth is B, the transmission signal is transmitted through a target, an echo signal has a delay, and distance measurement can be performed on both a rising edge and a falling edge in a frequency change of a triangle.
As an alternative embodiment of the present invention, before step 105, the method further comprises: judging whether the signal-to-noise ratio of the first reflection signal meets a preset condition or not; and if the preset condition is met, obtaining the information of the target object based on the first reflection signal.
Illustratively, the preset condition is a set threshold of the signal-to-noise ratio, the larger the signal-to-noise ratio of the first reflected signal is, the better the signal quality is, and the lower the signal-to-noise ratio is, the worse the signal quality is, and when the preset condition is satisfied, the information of the target object is calculated according to the content of the above step 105.
As an alternative embodiment of the present invention, before step 105, the method further comprises: if the preset condition is not met, increasing the aperture of the transmitting array, and transmitting a second signal based on the sparse array and the noise source; receiving a second reflected signal of the second signal, wherein the second reflected signal is a signal of the second signal reflected by a target object; and obtaining the information of the target object based on the second reflection signal. Illustratively, when the preset condition is not met, the aperture of the transmitting array is increased, so that the width of the main lobe response is reduced, thereby increasing the quality of the reflected signal, and increasing the signal-to-noise ratio of the second reflected signal, thereby obtaining accurate target object information. As shown in fig. 6, a performance diagram of a conventional matched filter and an ES matched filter with an increased aperture is shown, wherein the broken line is the conventional matched filter and the solid line is the ES matched filter.
As an optional implementation manner of the present invention, before step 105, the obtaining information of the target object based on the second reflected signal includes: obtaining a second time difference based on the second signal and a second reflected signal; and obtaining the information of the target object based on the frequency of the second signal and the second time difference. Illustratively, the specific process of calculating the information of the target object by the second reflection signal is the same as that of calculating the first reflection signal, and is not described herein again.
The embodiment of the invention also discloses a radar anti-interference identification device, as shown in fig. 2, the device comprises:
an obtaining module 201, configured to obtain array parameters of an antenna array, where the array parameters include: a transmitting array element of the transmitting array, and a receiving array element of the receiving array. For example, the details are the contents of step 101 in the above method embodiment, and are not described here again.
And the sparse array module 202 is configured to construct a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relationship. For example, the details are given in the above-mentioned step 102 of the method embodiment, and are not described herein again.
A transmitting module 203 for transmitting a first signal based on the sparse array through a matched filter. For example, the details are the contents of step 103 in the above method embodiment, and are not described here again.
A receiving module 204, configured to receive a first reflected signal of the first signal, where the first reflected signal is a signal of the first signal reflected by a target object. For example, the details are given in the above-mentioned step 104 of the method embodiment, and are not described herein again.
A target object information module 205, configured to obtain information of the target object based on the first reflected signal. For example, the details are the contents of step 105 in the above method embodiment, and are not described herein again.
The radar anti-interference identification device provided by the invention comprises: an obtaining module 201, configured to obtain array parameters of an antenna array, where the array parameters include: a transmitting array element of the transmitting array and a receiving array element of the receiving array; the sparse array module 202 is configured to construct a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relationship; a transmitting module 203 for transmitting a first signal based on the sparse array through a matched filter; a receiving module 204, configured to receive a first reflected signal of the first signal, where the first reflected signal is a signal of the first signal reflected by a target object; a target object information module 205, configured to obtain information of the target object based on the first reflected signal. The all-round coverage of the transmitted detection signal is guaranteed by constructing the all-round sparse array, omission of a target object is avoided, the anti-interference performance of the signal is improved, array elements which are not required to be poplar are reduced, and unnecessary resource loss is avoided. The information of the target object can be accurately obtained based on the reflected signal and the transmitted signal, and the identification accuracy is improved.
As an optional embodiment of the present invention, the target object information module 205 includes: a first time difference module for obtaining a first time difference based on the transmitted first signal and the first reflected signal; and the first sub-information module is used for obtaining the information of the target object based on the frequency of the transmitted first signal and the first time difference. For example, the details are the contents of step 105 in the above method embodiment, and are not described herein again.
As an optional embodiment of the present invention, before the target object information module 205, the apparatus further includes: the judging module is used for judging whether the signal-to-noise ratio of the first reflection signal meets a preset condition or not; and the first calculation submodule is used for obtaining the information of the target object based on the first reflection signal if the preset condition is met. For example, the details are the contents of step 105 in the above method embodiment, and are not described herein again.
As an optional embodiment of the present invention, before the target object information module 205, the apparatus further includes: the transmitting submodule is used for increasing the aperture of the transmitting array and transmitting a second signal based on the sparse array and the noise source if the preset condition is not met; the receiving submodule is used for receiving a second reflected signal of the second signal, and the second reflected signal is a signal of the second transmitted signal reflected by a target object; and the second calculation submodule is used for obtaining the information of the target object based on the second reflection signal. . For example, the details are the contents of step 105 in the above method embodiment, and are not described herein again.
As an optional embodiment of the present invention, before the target object information module 205, the obtaining information of the target object based on the second reflected signal includes: a second time difference module for obtaining a second time difference based on the second signal and the second reflected signal; and the second calculation submodule is used for obtaining the information of the target object based on the frequency of the second signal and the second time difference. For example, the details are the contents of step 105 in the above method embodiment, and are not described herein again.
An embodiment of the present invention further provides a computer device, as shown in fig. 3, the computer device may include a processor 301 and a memory 302, where the processor 301 and the memory 302 may be connected by a bus or in another manner, and fig. 3 takes the example of being connected by a bus as an example.
The memory 302 is a non-transitory computer-readable storage medium, and can be used for storing non-transitory software programs, non-transitory computer-executable programs, and modules, such as program instructions/modules corresponding to the radar anti-tamper identification method in the embodiments of the present invention. The processor 301 executes various functional applications and data processing of the processor by executing non-transitory software programs, instructions and modules stored in the memory 302, that is, implements the radar anti-jamming identification method in the above method embodiments.
The memory 302 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 301, and the like. Further, the memory 302 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 302 may optionally include memory located remotely from the processor 301, which may be connected to the processor 301 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The one or more modules are stored in the memory 302 and, when executed by the processor 301, perform a method for radar tamper resistance recognition as in the embodiment of fig. 1.
The details of the computer device can be understood with reference to the corresponding related descriptions and effects in the embodiment shown in fig. 1, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (9)
1. A method for radar anti-interference identification is characterized by comprising the following steps:
acquiring array parameters of an antenna array, wherein the array parameters comprise: a transmitting array element of the transmitting array and a receiving array element of the receiving array;
constructing a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relation;
transmitting a first signal based on the sparse array through a matched filter;
receiving a first reflected signal of the first signal, wherein the first reflected signal is a signal of the first signal reflected by a target object;
and obtaining the information of the target object based on the first reflection signal.
2. The method according to claim 1, wherein the constructing a sparse array based on the preset permutation relationship with the transmitting array elements and the receiving array elements comprises:
arranging the transmitting array elements and the receiving array elements according to the preset arrangement relation to obtain a synthetic array;
constructing the sparse array based on the transmit array, receive array, and synthetic array.
3. The method of claim 1, wherein obtaining information of a target object based on the first reflected signal comprises:
obtaining a first time difference based on the transmitted first signal and the first reflected signal;
and obtaining the information of the target object based on the frequency of the transmitted first signal and the first time difference.
4. The method of claim 1, wherein prior to deriving information of a target object based on the first reflected signal, the method further comprises:
judging whether the signal-to-noise ratio of the first reflection signal meets a preset condition or not;
and if the preset condition is met, obtaining the information of the target object based on the first reflection signal.
5. The method of claim 4, further comprising:
if the preset condition is not met, increasing the aperture of the transmitting array, and transmitting a second signal based on the sparse array and the noise source;
receiving a second reflected signal of the second signal, wherein the second reflected signal is a signal of the second signal reflected by a target object;
and obtaining the information of the target object based on the second reflection signal.
6. The method of claim 5, wherein obtaining information of the target object based on the second reflected signal comprises:
obtaining a second time difference based on the second signal and a second reflected signal;
and obtaining the information of the target object based on the frequency of the second signal and the second time difference.
7. An apparatus for radar tamper-resistant identification, comprising:
an obtaining module, configured to obtain array parameters of an antenna array, where the array parameters include: a transmitting array element of the transmitting array and a receiving array element of the receiving array;
the sparse array module is used for constructing a sparse array with the transmitting array elements and the receiving array elements based on a preset arrangement relation;
a transmitting module to transmit a first signal based on the sparse array through a matched filter;
a receiving module, configured to receive a first reflected signal of the first signal, where the first reflected signal is a signal of the first signal reflected by a target object;
and the target object information module is used for obtaining the information of the target object based on the first reflection signal.
8. A computer device, comprising: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to perform the steps of the radar tamper resistance recognition method of any one of claims 1-6.
9. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the radar tamper resistance recognition method according to any one of claims 1 to 6.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236653A (en) * | 2022-07-29 | 2022-10-25 | 南京慧尔视智能科技有限公司 | Radar detection method, device, equipment and medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115236653A (en) * | 2022-07-29 | 2022-10-25 | 南京慧尔视智能科技有限公司 | Radar detection method, device, equipment and medium |
| CN115236653B (en) * | 2022-07-29 | 2023-10-24 | 南京慧尔视智能科技有限公司 | Radar detection method, device, equipment and medium |
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