A radar-based target detection method and device
A target detection and radar technology, applied in the field of target detection, can solve the problem of being unable to distinguish between stationary targets and stationary targets
Active Publication Date: 2021-10-19
HANGZHOU HIKVISION DIGITAL TECH
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[0005] The purpose of the embodiments of the present application is to provide a radar-based target detection method and device to solve the problem of being unable to distinguish between stationary targets in the background and moving to stationary targets
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[0144] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0145] For ease of understanding, the words appearing in the embodiments of the present application are explained below.
[0146] Data processing cycle: a data processing cycle includes N frequency modulation cycles. If M radar antennas and K sampling points are set in advance, then as figure 1 As shown, the data size in one data processing cycle is N×K×M. Wherein, N, M and K are positive integers greater than 1.
[0147] Distance dimension data: used for distance measurement of ...
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The embodiment of the present application provides a radar-based target detection method and device, including: acquiring data corresponding to multiple coordinates within a frequency modulation cycle collected by the radar antenna; performing data processing on the acquired data in the distance dimension and azimuth dimension, and determining The first power corresponding to each coordinate; determine the first coordinate whose corresponding first power is greater than the first preset power threshold; perform data processing of the speed dimension on the data corresponding to the first coordinate to obtain the speed corresponding to the first coordinate; when the first coordinate When the speed corresponding to a coordinate is lower than the preset speed threshold, if it is determined that the detection information corresponding to the first coordinate is the first detection information indicating that there is no target, then it is determined that the target present at the first coordinate is a target that has moved to rest. By applying the embodiments of the present application, the problem of being unable to distinguish between stationary objects in the background and moving to stationary objects in object detection is solved, and the detection of moving to stationary objects is realized.
Description
technical field [0001] The present application relates to the technical field of target detection, in particular to a radar-based target detection method and device. Background technique [0002] Radar uses electromagnetic waves for target detection, and it is not easily affected by the environment when it works. The radar's target detection performance is not lost under low light and bad weather, and it has high stability. Based on this, in recent years, radar-based target detection methods have been used more and more in the fields of transportation and security. [0003] When target detection is based on radar, electronic equipment detects all moving and static targets by processing the echo signals received by the radar. Here, the static target refers to a static target, including a static target in the background, and a moving target to a static target. [0004] It can be seen that the above object detection method cannot distinguish between a completely still object ...
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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 浦世亮钱通申琳沈林杰
Owner HANGZHOU HIKVISION DIGITAL TECH