Radar angle measurement performance testing device and method

Abstract

The invention discloses a radar angle measurement performance testing device, and relates to the technical field of radars, and the device comprises a first space which comprises a first through hole penetrating through one side of the first space; the second space comprises a second through hole penetrating through one side of the second space; the at least one group of partition plates are arranged between the first space and the second space, and each partition plate comprises a third through hole penetrating through one side of the partition plate; the outsides of the first space and the second space are made of full-shading materials, the insides of the first space and the second space are made of wave-absorbing materials, and the two sides of the partition plate are made of wave-absorbing materials. The beneficial effects of the invention are that the through holes are ensured to be proper in size, are arranged along the same axis direction, and are made of a wave-absorbing material and a full-shading material, thereby effectively reducing the multipath effect and external interference, and improving the linearity of radar wave propagation and the test accuracy; meanwhile, due to the adjustable spatial layout and modular design, the device can adapt to different test requirements, and the accuracy of the radar angle measurement performance test is improved.

Description

Technical Field

[0001] The present invention relates to the field of radar technology, and in particular to a radar angle measurement performance testing device and method. Background Art

[0002] Millimeter-wave radar is an indispensable core sensor for intelligent driving, and its performance directly affects the safety and reliability of autonomous driving. Among them, the radar tilt performance reflects the accuracy and stability of the radar in detecting targets at different installation angles, which is crucial for vehicles to accurately perceive the surrounding environment in complex road environments.

[0003] At present, radar testing mainly relies on darkroom environments. Radar suppliers usually use a complete room with a certain volume to build it into a large darkroom dedicated to radar testing based on the fact that the content of radar testing is diverse and sufficiently detailed. Although this type of room has good test results, it is expensive to build and maintain. In addition, there is also a semi-darkroom used for target tracking testing. This type of semi-darkroom opens upward and has a cylindrical shape inside and outside. Not only is it expensive, but the target object / obstacle is simulated by a computer and there are no physical obstacles. It is usually used for simulation testing of long-distance obstacles.

[0004] Therefore, it is necessary to design a low-cost radar angle measurement performance test device that can accurately test the radar tilt performance and support the radar to perform tilt performance tests under a variety of scene conditions. Summary of the invention

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a radar angle measurement performance testing device, which can meet the needs of testing the radar angle performance more accurately on a low-cost basis, and at the same time support the needs of radar angle performance testing under a combination of various scene conditions.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a radar angle measurement performance test device, comprising a first space, the first space comprising a first through hole penetrating one side thereof;

[0008] a second space fixedly connected to the first space, the second space comprising a second through hole penetrating one side thereof; and,

[0009] At least one set of partitions disposed between the first space and the second space, the partitions comprising a third through hole penetrating one side thereof;

[0010] The outside of the first space and the second space is made of full light-shielding material, the inside of the first space and the second space is made of wave-absorbing material, and both sides of the partition are made of wave-absorbing material.

[0011] As a preferred solution of the radar angle measurement performance testing device of the present invention, the first through hole, the second through hole and the third through hole are opened along the same axial direction.

[0012] As a preferred solution of the radar angle measurement performance test device of the present invention, it further comprises: at least one third space arranged between the first space and the second space, the outside of the third space is made of a fully light-shielding material, and the inside of the third space is made of a wave-absorbing material;

[0013] The third space includes a fourth through hole penetrating one side thereof, and the fourth through hole is opened along the same axial direction as the first through hole.

[0014] As a preferred solution of the radar angle measurement performance test device of the present invention, the partition is a group, the partition coincides with one side close to the first space and the second space, and the third through hole coincides with the first through hole and a group of second through holes.

[0015] As a preferred solution of the radar angle measurement performance test device of the present invention, wherein: there are at least two groups of partitions, the two groups of partitions respectively overlap with one side close to the first space and the second space, and the two groups of third through holes respectively overlap with the first through holes and one group of second through holes;

[0016] The two groups of partitions overlap with the two sides of the third space connecting the first space and the second space respectively, and the two groups of third through holes overlap with the two groups of fourth through holes respectively.

[0017] As a preferred solution of the radar angle measurement performance test device of the present invention, the first space, the second space and the third space are regular or irregular in shape, and the regular shape includes a cube, a cuboid, a cylinder and a prism.

[0018] As a preferred solution of the radar angle measurement performance test device of the present invention, wherein: the first space includes a first support portion parallel to the ground, and a first enclosure portion connected to the first support portion non-parallel, and the first through hole is arranged through one side of the first enclosure portion;

[0019] The second space includes a second supporting portion parallel to the ground, and a second enclosure portion connected to the second supporting portion in a non-parallel manner, and the second through hole is arranged through one side of the second enclosure portion.

[0020] As a preferred solution of the radar angle measurement performance testing device of the present invention, the third space includes a third supporting portion parallel to the ground, and a third enclosure portion connected to the third supporting portion non-parallel, and a fourth through hole is arranged through one side of the third enclosure portion.

[0021] Beneficial effects of the present invention: The present invention effectively reduces multipath effects and external interference, and improves the linearity of radar wave propagation and the accuracy of testing by ensuring that the through holes are of appropriate size, are opened along the same axial direction, and use wave-absorbing materials and full-light-shielding materials; at the same time, the adjustable spatial layout and modular design enable the device to adapt to different testing requirements, and facilitate the adjustment and calibration of the distance between the radar and the target, thereby significantly improving the accuracy of the radar angle measurement performance test and the convenience of the experiment.

[0022] Based on the above-mentioned radar angle measurement performance testing device, the present invention also proposes a radar angle measurement performance testing method, which can ensure the stability of the test environment and the reliability of the test results through precise spatial alignment, target setting and radar installation steps, thereby improving the overall performance and testing efficiency of the device.

[0023] In order to solve the above technical problems, the present invention provides the following technical solutions: a radar angle measurement performance testing method, comprising:

[0024] aligning the first space, the partition and the second space through the first through hole, the third through hole and the second through hole;

[0025] The first space, the partition and the second space are tightly connected into a whole to construct a test space for radar angle measurement performance;

[0026] placing the target outside the second space so that it is aligned with the second through hole;

[0027] Install the radar stand to one side of the first space so that the radar core can detect the target through the first through hole, the third through hole and the second through hole in sequence;

[0028] Start the radar angle measurement performance test based on the adjusted radar detection equipment.

[0029] As a preferred solution of the radar angle measurement performance test device of the present invention, wherein: at least one set of third spaces is added between the first space and the second space, and the third space is aligned with the partition through the fourth through hole aligned with the third through hole;

[0030] The first space, the partition, the third space, the partition and the second space are tightly connected as a whole to construct a test space for the radar angle measurement performance in long-range measurement and diverse and complex environments.

[0031] Beneficial effects of the present invention: The present invention ensures the stability of the test environment and the reliability of the test results through precise spatial alignment, target setting and radar installation steps, and improves the overall performance and test efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 The present invention is a cross-sectional view of the overall structure of a radar angle measurement performance testing device.

[0034] Figure 2 The present invention is a schematic diagram of the specific structure of a radar angle measurement performance testing device.

[0035] Figure 3 This is a three-dimensional diagram of the overall structure of a radar angle measurement performance testing device of the present invention. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0038] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0039] Example 1

[0040] Reference Figure 1 , which is the first embodiment of the present invention, provides a radar angle measurement performance testing device, which includes a first space 100, a partition 300 and a second space 200.

[0041] Specifically, the first space 100 includes a first through hole 101 penetrating one side thereof;

[0042] a second space 200 fixedly connected to the first space 100, the second space 200 comprising a second through hole 201 penetrating one side thereof; and,

[0043] At least one set of partitions 300 disposed between the first space 100 and the second space 200, the partitions 300 including third through holes 301 penetrating one side thereof;

[0044] The outside of the first space 100 and the second space 200 is made of full light-shielding material, the inside of the first space 100 and the second space 200 is made of wave-absorbing material, and both sides of the partition 300 are made of wave-absorbing material.

[0045] It should be noted that, in the present embodiment, the first space 100 and the second space 200, whether they are two independent spaces or a complete space closely connected together, are actually semi-enclosed areas for radar inclination performance testing, that is, whether the first space 100 and the second space 200 are of regular or irregular shapes, they are both enclosed or covered to a certain extent, and still allow a certain degree of openness or interaction with the outside world, specifically: the first space 100 needs to allow one side to be open to meet the needs of placing the radar under test and its test stand, and the detection angle of the radar under test can be adjusted at any time. At the same time, the other parts of the first space 100 should have a certain degree of closure to reduce external interference, such as other electromagnetic signals, uncontrollable weather factors, etc. The other side of the first space 100 needs to allow an opening to meet the needs of the radar under test to detect targets outside the first space 100 through the opening.

[0046] Preferably, in this embodiment, the first space 100 and the second space 200 are tightly connected as a complete whole, and the radar under test installed at one end of the first space 100 can detect the target object through the first through hole 101 and the second through hole 201, and the design of the second through hole 201 allows the target object to be placed in the second space 200 without being specifically placed, thereby ensuring the flexibility and openness of the target object setting, that is, the target object can be arranged outside the second space 200, and the target object and the second space 200 do not need to restrict and adapt to each other, and the tester does not need to enter the second space 200 or adjust the position and angle of the target object through some transmission mechanism, which not only facilitates the tester to adjust the position and angle of the target object and the combination and scene matching of the target object, but also ensures that the tester can make corresponding adjustments to the target object more quickly according to needs, while maintaining the stability of the test environment of the radar under test, increasing the diversity and convenience of the test configuration.

[0047] It should be noted that the specific structure of the radar under test in this embodiment includes a bracket body, a level, a laser transmitter, a scale plate, a radar assembly plate, an angle table, a controller, a motor 1 and a motor 2, wherein the level is used to visually check and calibrate the horizontality of the test bench, the laser transmitter and the scale plate cooperate with the reflector of the target object to calibrate whether the axis of the test bench is parallel to the initial radar angle, the radar assembly plate is used to assemble the radar under test, and for radars of different sizes and different mounting structures, a transition plate needs to be designed for auxiliary assembly, the controller is used to control the motor behavior and collect radar data through a CAN network or Ethernet, the motor 1 controls the radar to rotate around the Z-axis of the center of the wavefront by controlling the rotation of the angle table, and the motor 2 controls the radar to rotate around the Y-axis of the center of the wavefront by controlling the rotation of the angle table; the target object is a standard three-angle reflector for testing, which can also be replaced with other objects to meet special testing requirements. When replaced with a reflector, it can cooperate with the radar under test to realize the axial calibration of the test equipment.

[0048] It should be noted that, in this embodiment, at least one set of partitions 300 is provided between the first space 100 and the second space 200, which is determined according to the specific structural composition of the first space 100 and the second space 200;

[0049] In the first embodiment, when only one side of the first space 100 where the radar to be tested is placed is fully open, the side opposite to the fully open side of the first space 100 is in a partially open state with a group of first through holes 101, the side of the second space 200 connected to the first space 100 is fully open, and the side opposite to the fully open side of the second space 200 is in a partially open state with a group of second through holes 201;

[0050] At this time, the first space 100 and the second space 200 can both be used as independent radar inclination performance test spaces, because the fully open side of the two groups of spaces can meet the installation of the radar under test and the adjustment of the angle at any time. In this application, the side of the partially open side of the first space 100 that is directly in contact with the external environment can be set to an opaque material, and the partition 300 with a group of third through holes 301 can be placed in the first space 100 or the second space 200 as an independent component, ensuring that the third through holes 301 are aligned with the corresponding first through holes 101 or second through holes 201, respectively. This can further separate the radar tested area and the target area, and can also use the absorbing materials on both sides of the partition 300 to increase the absorption of excess reflected waves, reduce the multipath effect, and improve the test. Angular accuracy (the electromagnetic waves emitted by the radar are reflected multiple times in the test environment before reaching the receiver, resulting in the received signal containing reflected waves of multiple paths. These additional reflected waves will interfere with the radar's analysis of the received signal and reduce the angle measurement accuracy). The specific number of partitions 300 can be limited according to the length of the first space 100 or the second space 200. When two or more groups of partitions 300 are provided, in addition to the measured area and the target area at both ends, multiple middle spaces can also be isolated. The multiple isolated middle spaces can be used to add nozzles that spray liquid or mist substances to simulate rainy days, foggy days and other environments, which can not only meet the needs of complex environments during testing, but also ensure that the simulated different environments are controllable and will not cause interference to the test equipment and the test process and other negative effects.

[0051] When the first space 100 and the second space 200 are used in combination, the partially open side of the first space 100 is equivalent to the partition 300, and the first through hole 101 on this side is equivalent to the third through hole 301. Then the side facing the interior of the first space 100 and the side facing the interior of the second space 200 are both made of absorbing materials. On the basis of this structure, a separate partition 300 can be additionally provided inside the first space 100 or inside the second space 200, so that the third through holes 301 are aligned with other through holes, thereby increasing and isolating multiple spaces to meet the above-mentioned absorbing requirements and various environmental test simulation requirements.

[0052] In the second embodiment, when the side of the first space 100 where the radar to be tested is placed and the opposite side thereof are fully open, the side of the second space 200 connected to the first space 100 and the opposite side thereof are both in a partially open state with a group of second through holes 201 opened;

[0053] At this time, the first space 100 and the second space 200 can only be used in combination, then the partially open side of the second space 200 is equivalent to the partition 300, and the second through hole 201 on this side is equivalent to the third through hole 301, then the side facing the interior of the first space 100 and the side facing the interior of the second space 200 are both made of absorbing materials, and on the basis of this structure, an additional separate partition 300 can be additionally set inside the first space 100 or inside the second space 200, so that the third through holes 301 are aligned with other through holes, thereby increasing and isolating multiple spaces to meet the above-mentioned absorbing requirements and diverse environmental test simulation requirements.

[0054] In the third embodiment, when the side of the first space 100 where the radar to be tested is placed and the side opposite thereto are both fully open, the side of the second space 200 connected to the first space 100 is fully open, and the side opposite to the fully open side of the second space 200 is in a partially open state with a group of second through holes 201 opened thereto;

[0055] At this time, the second space 200 can be used as a separate space, see the relevant content of the first embodiment for details; and the first space 100 can only be used in combination with the second space 200, and neither of the first space 100 and the second space 200 has a component that can serve as a partition 300 on the side where they are connected. Therefore, an additional partition 300 can only be set up so that the third through hole 301 is aligned with the first through hole 101 and the second through hole 201, wherein multiple groups of partitions 300 can also be set to increase and isolate multiple spaces to meet the above-mentioned absorption requirements and diverse environmental test simulation requirements.

[0056] It should be noted that no matter which of the above-mentioned implementation situations is used, it is necessary to ensure that both sides of the partition 300 used as an independent component are made of absorbing material, and the actual shape of the partition 300 is adapted to the internal shape structure of the first space 100 and the second space 200. The shape structure of the first space 100 and the second space 200 may not be uniform inside and outside. For example, the outside may look peculiar in shape, while the internal channel is regular, or the outside may look regular in shape, while the internal channel is peculiar in shape. In either case, it is necessary to ensure that the through holes can be aligned and that the radar under test can detect the target object through the through holes in turn; the first space 100 and the second space 200 can be a complete structure or assembled from detachable parts. In both cases, it is necessary to ensure that all positions except those allowed to be opened are sealed and opaque to ensure that the test environment inside the space is pure and stable.

[0057] In summary, the present invention provides a radar angle measurement performance testing device, which realizes a semi-closed test environment by setting a first space, a second space and a partition, and adopts a full light-shielding material and a wave-absorbing material, effectively reducing external interference and improving test accuracy. At the same time, through the design of through holes, the flexibility of target object setting and the diversity of test configuration are ensured. Combined with partitions, multiple groups can be used to isolate multiple spaces, making the radar inclination performance test more efficient, accurate and suitable for a variety of simulation environments.

[0058] Example 2

[0059] Reference Figure 1 to Figure 3 , which is the second embodiment of the present invention, is different from the first embodiment in that it also includes the specific structure and design points of the first space 100, the partition 300 and the second space 200.

[0060] Specifically, the first through hole 101 , the second through hole 201 , and the third through hole 301 are opened along the same axial direction.

[0061] Preferably, the size of each group of through holes should be consistent and adapted to the target object to ensure that the through holes are neither too large nor too small. On the one hand, this ensures that the radar under test can fully detect the target object and avoids deviations in the perception of the actual size and shape of the target object due to through holes being too small. On the other hand, it also avoids the through holes being too large, which may cause radar wave leakage or echo signals to be reflected from multiple directions and cannot distinguish between direct echoes and reflected echoes, making it difficult for the radar to accurately locate the target object, thereby affecting the accuracy of angle measurement.

[0062] Preferably, the through holes are opened and aligned along the same axial direction, ensuring a straight-line propagation path for the radar wave, reducing the error source due to the uncertainty of the propagation path, and minimizing the reflection and refraction of the radar wave during the propagation process, thereby reducing the multipath effect and simplifying the signal processing algorithm. The straight-line propagation path also makes the relative position adjustment of the radar and the target object more intuitive and convenient, which is convenient for calibration work before testing.

[0063] Furthermore, it also includes at least one third space 400 disposed between the first space 100 and the second space 200, the third space 400 has a full light-shielding material outside and a wave-absorbing material inside;

[0064] The third space 400 includes a fourth through hole 401 penetrating one side thereof. The fourth through hole 401 is opened along the same axial direction as the first through hole 101 .

[0065] Preferably, the third space 400 can be used as an independent space, and can be additionally arranged between the first space 100 and the second space 200, and the third space 400 can be provided with multiple groups, so as to increase and extend the distance between the measured radar and the target object, thereby improving the accuracy of the radar angle measurement performance, and can also be applied to various requirements of the size of the distance, and can be disassembled and increased or decreased at any time, and the convenience of the experiment is greatly increased;

[0066] In this application, the two sides of the third space 400 that are respectively connected to other spaces can be set to be fully open, and the space can be separated by adding a partition 300. The two sides of the third space 400 that are respectively connected to other spaces can also be set to be partially open with a fourth through hole 401. Since the third space 400 is connected to two groups of spaces at the same time, the two sides of the partially open third space 400 are set to absorbing materials, whether they are the two sides facing the interior of the third space 400 or the two sides facing the interior of the other two connected spaces.

[0067] It should be noted that each group of spaces is detachably connected, and the body of each group of spaces can be welded or detachably connected (with the help of separate connection and locking structures, such as bolts and nuts, clips and slots, quick connectors and magnetic connections, etc.).

[0068] Further, the partitions 300 form a group, the partitions 300 overlap with one side close to the first space 100 and the second space 200 , and the third through holes 301 overlap with the first through holes 101 and a group of second through holes 201 .

[0069] It should be noted that the overlap here is an expression of intention rather than forcing the two physical structures to overlap, which may correspond to the specific implementation method disclosed in Example 1.

[0070] Further, there are at least two groups of partitions 300, and the two groups of partitions 300 respectively overlap with the side close to the first space 100 and the second space 200, and the two groups of third through holes 301 respectively overlap with the first through holes 101 and one group of second through holes 201;

[0071] The two groups of partitions 300 overlap with the two sides of the third space 400 connecting the first space 100 and the second space 200 , respectively, and the two groups of third through holes 301 overlap with the two groups of fourth through holes 401 , respectively.

[0072] It should be noted that the overlap here is an expression of intention rather than forcing the two physical structures to overlap, which may correspond to the specific implementation method disclosed in Example 1.

[0073] Furthermore, the first space 100, the second space 200 and the third space 400 are regular or irregular in shape, and the regular shape includes a cube, a cuboid, a cylinder and a prism.

[0074] It should be noted that the paths or channels for propagation of the radar waves under test within the three groups of spaces have the same structure.

[0075] Further, the first space 100 includes a first support portion 102 parallel to the ground, and a first enclosure portion 103 connected to the first support portion 102 in a non-parallel manner, and the first through hole 101 is provided through one side of the first enclosure portion 103;

[0076] The second space 200 includes a second supporting portion 202 parallel to the ground, and a second enclosure portion 203 connected to the second supporting portion 202 in a non-parallel manner. The second through hole 201 is provided through one side of the second enclosure portion 203 .

[0077] Furthermore, the third space 400 includes a third supporting portion 402 parallel to the ground, and a third enclosing portion 403 connected to the third supporting portion 402 in a non-parallel manner, and the fourth through hole 401 is provided through one side of the third enclosing portion 403 .

[0078] It should be noted that no matter the three groups of spaces are regular or irregular, their respective supporting parts and enclosure parts are independent in function, and can be regarded as a whole with the enclosure part in terms of connection relationship. The enclosure part can be further divided into quantity according to direction and shape. For example, when the three groups of spaces are cubes, the enclosure part can include multiple directions of up, down, front, back, left and right and a group arranged in corresponding directions. If the three groups of spaces are cylindrical, their up and down will be combined with left and right or front and back to form a complete surround. At this time, there is only one group of enclosure parts. This is only used to explain that when the enclosure parts have different shapes and structures, their specific number is not unique, and the specific direction is not limited. In practice, the specific direction is limited according to the actual different standard surfaces.

[0079] In combination with the above content, this embodiment provides a practical and implementable case demonstration, as follows:

[0080] The radar angle measurement performance test device is composed of a first space 100, a second space 200, a target object and a plurality of third spaces 400, wherein a partition 300 is added as needed, and the three spaces are all cubic modules with a size of not less than 80cm×80cm×80cm;

[0081] The measured area constituted by the first space 100 is mainly composed of a radar stand and five side walls. The side walls are covered with absorbing materials corresponding to the frequency of the measured radar to prevent clutter oscillation. A square first through hole 101 not larger than 10 cm×10 cm is opened on the side wall parallel to the YOZ plane. The structure of the radar stand is detailed in Example 1.

[0082] The target area formed by the second space 200 is mainly composed of the target object and 6 side walls. The side walls are covered with absorbing materials corresponding to the frequency of the radar to be measured to prevent clutter oscillation. A square second through hole 201 no larger than 10 cm×10 cm is opened on the side wall parallel to the YOZ plane and facing the target. For details about the target object, see Example 1.

[0083] The third space 400 is mainly composed of 6 side walls, which are covered with absorbing materials corresponding to the frequency of the radar to be measured to prevent clutter oscillation. A square fourth through hole 401 no larger than 10 cm×10 cm is opened on the side wall parallel to the YOZ plane;

[0084] Among them, the two side walls of the first space 100 and the third space 400 can be understood as sharing a set of partitions 300, the two side walls of the third space 400 and the second space 200 can be understood as sharing another set of partitions 300, the two side walls of the two connected third spaces 400 can be understood as sharing an additional set of partitions 300, and the through holes opened in the side walls sharing the same set of partitions 300 can be understood as corresponding to the third through holes 301 of the partitions 300 themselves.

[0085] Before the test, a group of first spaces 100, a group of second spaces 200 and a plurality of third spaces 400 are spliced ​​and locked by a locking device. After the assembly is completed, the radar to be tested is assembled on the radar stand of the first space 100, and the radar and the controller are connected via CAN communication or Ethernet;

[0086] During the test, the power is turned on, the controller loads the control program, adjusts the radar angle and feeds back the radar test results.

[0087] In summary, the present invention effectively reduces the multipath effect and external interference, and improves the linearity of radar wave propagation and the accuracy of the test by ensuring that the through holes are of appropriate size, opened along the same axial direction, and using absorbing materials and full light-shielding materials; at the same time, the adjustable spatial layout and modular design enable the device to adapt to different test requirements, and facilitate the adjustment and calibration of the distance between the radar and the target, thereby significantly improving the accuracy of the radar angle measurement performance test and the convenience of the experiment.

[0088] Example 3

[0089] This embodiment is the third embodiment of the present invention, and it is different from the previous two embodiments in that it includes a radar angle measurement performance test method, which can bring many guiding benefits to the radar angle measurement performance test device, such as optimizing design, improving test efficiency, enhancing adaptability, ensuring test accuracy, facilitating maintenance and upgrading, and providing standardized processes.

[0090] Specifically, the first space, the partition and the second space are aligned through the first through hole, the third through hole and the second through hole;

[0091] The first space, the partition and the second space are tightly connected into a whole to construct a test space for radar angle measurement performance;

[0092] placing the target outside the second space so that it is aligned with the second through hole;

[0093] Install the radar stand to one side of the first space so that the radar core can detect the target through the first through hole, the third through hole and the second through hole in sequence;

[0094] Start the radar angle measurement performance test based on the adjusted radar detection equipment.

[0095] Furthermore, at least one group of third spaces is added between the first space and the second space, and the third spaces are aligned with the partition by aligning the fourth through holes with the third through holes;

[0096] The first space, the partition, the third space, the partition and the second space are tightly connected as a whole to construct a test space for the radar angle measurement performance in long-range measurement and diverse and complex environments.

[0097] In summary, the present invention brings many guiding benefits to the radar angle measurement performance test device, such as optimizing design, improving test efficiency, enhancing adaptability, ensuring test accuracy, facilitating maintenance and upgrading, and providing standardized processes. Through precise spatial alignment, target setting and radar installation steps, the stability of the test environment and the reliability of the test results are ensured, thereby improving the overall performance and test efficiency of the device.

[0098] It is important to note that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A radar angle measurement performance test device, characterized in that: include, A first space (100), the first space (100) comprising a first through hole (101) penetrating one side thereof; a second space (200) fixedly connected to the first space (100), the second space (200) comprising a second through hole (201) penetrating one side thereof; as well as, At least one set of partitions (300) disposed between the first space (100) and the second space (200), the partitions (300) comprising a third through hole (301) penetrating one side thereof; The outside of the first space (100) and the second space (200) are made of full light-shielding material, the inside of the first space (100) and the second space (200) are made of wave-absorbing material, and both sides of the partition (300) are made of wave-absorbing material.

2. The radar angle measurement performance testing device according to claim 1, characterized in that: The first through hole (101), the second through hole (201) and the third through hole (301) are opened along the same axial direction.

3. The radar angle measurement performance testing device according to claim 1 or 2, characterized in that: It also includes at least one group of third spaces (400) arranged between the first space (100) and the second space (200), wherein the outside of the third space (400) is made of a full light-shielding material, and the inside of the third space (400) is made of a wave-absorbing material; The third space (400) comprises a fourth through hole (401) penetrating one side thereof, and the fourth through hole (401) is opened along the same axial direction as the first through hole (101).

4. The radar angle measurement performance testing device according to claim 3, characterized in that: The partition (300) is a group, the partition (300) overlaps with a side close to the first space (100) and the second space (200), and the third through hole (301) overlaps with the first through hole (101) and a group of the second through holes (201).

5. The radar angle measurement performance testing device according to claim 3, characterized in that: There are at least two groups of the partitions (300), and the two groups of the partitions (300) respectively overlap with one side of the first space (100) and the second space (200) that are close to each other, and the two groups of the third through holes (301) respectively overlap with the first through holes (101) and one group of the second through holes (201); The two groups of partitions (300) respectively overlap with the third space (400) connecting the first space (100) and the second space (200) on both sides, and the two groups of third through holes (301) respectively overlap with the two groups of fourth through holes (401).

6. The radar angle measurement performance testing device according to claim 4 or 5, characterized in that: The first space (100), the second space (200) and the third space (400) are regular or irregular in shape, and the regular shape includes a cube, a rectangular parallelepiped, a cylinder and a prism.

7. The radar angle measurement performance testing device according to claim 6, characterized in that: The first space (100) comprises a first supporting portion (102) parallel to the ground, and a first enclosure portion (103) connected to the first supporting portion (102) in a non-parallel manner, and the first through hole (101) is arranged through one side of the first enclosure portion (103); The second space (200) comprises a second supporting portion (202) parallel to the ground, and a second enclosure portion (203) non-parallel to the second supporting portion (202), and the second through hole (201) is arranged through one side of the second enclosure portion (203).

8. The radar angle measurement performance testing device according to claim 7, characterized in that: The third space (400) comprises a third supporting portion (402) parallel to the ground, and a third enclosing portion (403) connected to the third supporting portion (402) in a non-parallel manner, and the fourth through hole (401) is arranged through one side of the third enclosing portion (403).

9. A radar angle measurement performance testing method, characterized in that: aligning the first space, the partition and the second space through the first through hole, the third through hole and the second through hole; The first space, the partition and the second space are tightly connected into a whole to construct a test space for radar angle measurement performance; placing the target outside the second space so that it is aligned with the second through hole; Install the radar stand to one side of the first space so that the radar core can detect the target through the first through hole, the third through hole and the second through hole in sequence; Start the radar angle measurement performance test based on the adjusted radar detection equipment.

10. The radar angle measurement performance testing method according to claim 9, characterized in that: At least one third space is added between the first space and the second space, and the third space is aligned with the partition through the fourth through hole being aligned with the third through hole; The first space, the partition, the third space, the partition and the second space are tightly connected as a whole to construct a test space for the radar angle measurement performance in long-range measurement and diverse and complex environments.

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