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Multi-target position estimation method after through-wall radar imaging based on improved dynamic programming

A technology of through-wall radar and dynamic programming, applied in measurement devices, radio wave reflection/re-radiation, utilization of re-radiation, etc. The effect of convenient target accumulation, high target detection probability, and high position estimation accuracy

Active Publication Date: 2018-06-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The purpose of the invention is: in order to solve the problems in the prior art that the target is lost due to large differences in target amplitude, different echo attenuation degrees, target occlusion, etc., the present invention proposes a wall-penetrating radar imaging based on improved dynamic programming Post-Multiple Target Position Estimation Method

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  • Multi-target position estimation method after through-wall radar imaging based on improved dynamic programming
  • Multi-target position estimation method after through-wall radar imaging based on improved dynamic programming
  • Multi-target position estimation method after through-wall radar imaging based on improved dynamic programming

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[0034] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] Such as figure 1 As shown, it is a schematic flowchart of the multi-target position estimation method after through-wall radar imaging based on improved dynamic programming in the present invention. A multi-target location estimation method after through-wall radar imaging based on improved dynamic programming, comprising the following steps:

[0036] A. Use the through-wall radar to detect multi-moving targets behind the wall of the area to be detected through the multi-transmit and multi-receive array, and discretize the imaging area according to the calculation resolution, and according ...

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Abstract

The invention discloses a multi-target position estimation method after through-wall radar imaging based on improved dynamic planning, which includes target area imaging, target image optimization, dynamic planning and sliding window smoothing position estimation. The invention fully considers the expandability of the target in the imaging result, and well improves the problem of target loss caused by differences in scattering coefficients between targets, target echo attenuation, target occlusion, etc., improves target detection probability, and has high target detection probability. , The advantage of high position estimation accuracy can be directly applied to the through-wall radar equipment.

Description

technical field [0001] The invention belongs to the technical field of through-wall radar, in particular to a multi-target position estimation method after imaging of through-wall radar based on improved dynamic programming. Background technique [0002] Through-the-wall radar is a special equipment that uses ultra-wideband microwave radar detection technology to penetrate building walls, bunkers, etc. by emitting electromagnetic waves of a specific frequency band, and receives scattered echo data of targets such as human bodies behind obstacles to obtain information about hidden targets. Due to its excellent characteristics, through-the-wall radar has received extensive attention in military and civil fields such as street fighting, anti-terrorism, and disaster relief. When there are multiple targets in an actual application scene, due to differences in target scattering coefficients, differences in target motion characteristics, and target occlusion problems, there are oft...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/88
CPCG01S13/888
Inventor 崔国龙刘健强卢金伟郭世盛胡露黄鑫杨晓波孔令讲易伟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA