Vehicle millimeter wave radar antenna layout method and device, electronic equipment and storage medium
A millimeter-wave radar and layout method technology, applied in the automotive field, can solve the problems of high first side lobe, low utilization rate of azimuth virtual aperture, low azimuth resolution, etc., and achieves excellent performance, high virtual aperture utilization, The effect of reducing the probability of false alarms
Pending Publication Date: 2022-03-08
CHINA AUTOMOTIVE INNOVATION CORP
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Problems solved by technology
[0003] The millimeter-wave radar applied to vehicles has the problems of low azimuth virtual aperture utilization, low azimuth resolution, and high first side lobe
Since the antenna layout is usually only determined by the transceiver nesting principle, it is usually necessary to place the receiving antenna on one side at different heights to take into account the elevation angle test, resulting in low utilization of the azimuth virtual aperture; and, due to the simulated The virtual channel of is uniformly distributed in azimuth, resulting in a uniformly distributed first sidelobe with higher
[0004] The current antenna layout optimization method cannot specifically optimize the above-mentioned problems existing in the vehicle millimeter-wave radar, and the high-resolution vehicle millimeter-wave radar cannot be realized by optimizing the antenna layout
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[0043]In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings. Apparently, the described embodiment is only one embodiment of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0044] The "embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the embodiments of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom" etc. are based on the drawings The ori...
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The embodiment of the invention provides a vehicle millimeter wave radar antenna layout method and device, electronic equipment and a storage medium. The method comprises the following steps: determining initial layout parameters of antenna layout according to a transceiving nesting principle; determining a fitness function of a genetic algorithm according to the initial layout parameters of the antenna layout and a preset condition; the preset condition comprises that the aperture of the virtual array of the azimuth plane is greater than a preset aperture; determining a termination condition of the genetic algorithm; iteration of the genetic algorithm is carried out based on the initial layout parameters and the fitness function; and if the termination condition is reached in the iteration process of the genetic algorithm, determining a target sparse array layout parameter of the antenna layout. According to the vehicle millimeter wave radar antenna layout method provided by the embodiment of the invention, the virtual aperture utilization rate of antenna layout can be improved, and the first side lobe of the virtual array is reduced, so that the performance of the vehicle millimeter wave radar is improved.
Description
technical field [0001] The present invention relates to the technical field of automobiles, in particular to a vehicle millimeter-wave radar antenna layout method, device, electronic equipment and storage medium. Background technique [0002] With the continuous development of autonomous driving technology, millimeter wave radar undertakes more and more important perception tasks. Perception data that is not affected by the environment is particularly important in the spatial perception requirements of bicycle intelligence and vehicle-road coordination in autonomous driving scenarios. Millimeter-wave radar is an active sensor that uses millimeter-level microwaves. Its data source does not depend on radiation sources, and is not affected by rain, fog, and light. It has all-weather perception capabilities. It is extremely useful for optical sensors and laser sensors. big advantage. And it has a wide ranging range, high speed and angle measurement accuracy, and the waveform m...
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IPC IPC(8): G01S13/931G06N3/12
CPCG01S13/931G06N3/126
Inventor 李丰军周剑光戚健庭段小河张魏
Owner CHINA AUTOMOTIVE INNOVATION CORP