Moving target one-dimensional detecting and tracking method for ultra-wideband through-wall radar

Abstract

The invention provides a moving target one-dimensional detecting and tracking method for ultra-wideband through-wall radar. According to the method, a moving target behind an obstacle is subjected to real-time accurate one-dimensional detecting and tracking through echo data of a pair of sensors of the ultra-wideband through-wall radar; the problem that echo instability causes difficulty in recognizing and positioning the targets during one-dimensional through-wall detecting is partly solved; meanwhile, the multiple moving targets behind the obstacle can be detected at the same time, and thus, the contradiction between the sensor quantity limit (hardware system size limit) and multi-target detecting capacity of the ultra-wideband through-wall radar can be effectively solved.

Description

technical field [0001] The invention relates to the technical field of ultra-wideband radar, in particular to a method for one-dimensional detection and tracking of moving targets of ultra-wideband through-wall radar. Background technique [0002] Pulse ultra-wideband through-wall radar is a short-range moving target detection radar based on ultra-wideband pulse technology. It penetrates general obstacles (such as various brick walls, Reinforced concrete walls, etc.), receive and analyze the echo signal, judge the existence of the moving target (person) behind the obstacle for the operator in real time and accurately provide the position information of the target and its movement, etc., so as to achieve the detection of hidden obstacles The purpose of non-intrusive detection of moving targets in the future is to improve the capabilities of operators in reconnaissance and detection, situational awareness, etc. [0003] UWB wall-penetrating radar can have different detection ...

AI Technical Summary

Problems solved by technology

[0004] In the actual use of through-wall radar, it is often affected by many unfavorable factors from itself and the outside world, such as random thermal noise of the radar system, uncertainty in the wall medium and its distribution, multipath effects in the detection environment, etc. etc., these unfavorable factors will cause serious interference to the radar echo, which directly leads to the unstable positioning of the target by the portable through-the-wall radar, which brings great inconvenience to the operator to distinguish the target and determine the target position

[0005] In addition, due to the small number of sensors, portable through-wall radars can usually only effectively track one moving target, and when there are two to three moving targets in the measured area, it can often only track the target with the strongest reflected echo energy , the rest of the targets cannot be effectively detected

It can be seen that the limitation on the number of transmitting and receiving sensors, or the higher requirements on the portability of the through-wall radar, often restricts the multi-target detection capability of the ultra-wideband through-the-wall radar

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