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Laser radar pair anti-interference method, device and equipment and storage medium

A laser radar, interference detection technology, applied in radio wave measurement systems, instruments, etc., can solve the problem of code word table error, identification error, and inability to effectively counteract the light receiving module, so as to solve the problem of weak anti-interference ability and improve The effect of ranging accuracy

Pending Publication Date: 2022-04-12
宁波未感半导体科技有限公司
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Problems solved by technology

[0004] However, when there is interference from other lidars or 'intentional' interference in the same scene, the encoded light emitting method of the prior art will receive a lot of 'redundant' pulses, resulting in errors in the code word table comparison of the light receiving module and The recognition error makes it impossible to effectively fight against such interference, which greatly reduces the accuracy of lidar ranging

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  • Laser radar pair anti-interference method, device and equipment and storage medium
  • Laser radar pair anti-interference method, device and equipment and storage medium
  • Laser radar pair anti-interference method, device and equipment and storage medium

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Embodiment Construction

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the appended The figures are only for the purpose of illustration and description, and are not used to limit the protection scope of the present application. Additionally, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented in accordance with some embodiments of the application. It should be understood that the operations of the flowcharts may be performed out of order, and steps that have no logical context may be performed in reverse order or concurrently. In addition, those skilled in the art may add one or more other operations t...

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Abstract

The invention provides a laser radar pair anti-interference method and device, equipment and a storage medium, and relates to the technical field of laser radars. The method comprises the following steps: intercepting each data point of an original waveform in an interference detection time period; according to each data point of the original waveform, determining whether an interference waveform exists in the original waveform; if yes, extracting a parameter value of the interference waveform from each data point of the original waveform; according to the parameter value of the interference waveform, data points of the interference waveform are removed from all data points of the original waveform, and target transmitted waveform data are obtained; and emitting a laser pulse sequence to the detection area according to the target emission waveform data. According to the scheme, data points of original waveforms in an interference detection time period are intercepted, whether interference waveforms exist in the currently transmitted original waveforms or not is judged, if yes, existing redundant interference pulses are eliminated, laser radar ranging is performed based on target transmitted waveform data after interference elimination, and the target transmitted waveform data is subjected to interference elimination. And the ranging accuracy of the laser radar is improved.

Description

technical field [0001] The present application relates to the technical field of laser radar, in particular, to a laser radar anti-jamming method, device, equipment and storage medium. Background technique [0002] Lidar is a system that detects the position, speed and other parameters of the target by emitting laser beams. With its ultra-high distance resolution and spatial resolution capabilities, it is considered to be the most critical component of the perception phase of autonomous driving. Among them, ranging range, spatial resolution, and point frequency are the most important performance indicators of lidar. With the popularization and application of laser radar, the interference problem between different laser radars is becoming more and more serious. Therefore, all lidars need to be able to effectively counter various possible interferences to address the impact of interference. [0003] At present, the existing laser radar anti-jamming method, first of all, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/495
Inventor 陈浩严伟振
Owner 宁波未感半导体科技有限公司
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