CAJ | 학술논문

穿墙雷达由于其工作环境的复杂性，导致接收的目标信号十分微弱，即使通过背景对消抑制了天线耦合波、墙体直达波等强杂波，目标信号也难以突显，同时传统的检测方法并不能解决目标与墙体等环境响应产生“鬼影”目标的问题。为解决这一问题，建立了点目标、扩展目标以及运动目标等模型对虚假“鬼影”目标的产生原因进行分析，并提出了一种基于幅度和空间位置等特征相结合的图像检测方法。仿真和实验结果证明了“鬼影”的理论分析和方法的有效性。
천장뢰체유우기공작배경적복잡성，도치접수적목표신호십분미약，즉사통과배경대소억제료천선우합파、장체직체파등강잡파，목표신호야난이돌현，동시전통적검측방법병불능해결목표여장체등배경향응산생“귀영”목표적문제。위해결저일문제，건립료점목표、확전목표이급운동목표등모형대허가“귀영”목표적산생원인진행분석，병제출료일충기우폭도화공간위치등특정상결합적도상검측방법。방진화실험결과증명료“귀영”적이론분석화방법적유효성。
The work environment of the through?the?wall radar is complicated,which makes the received target signal com?pletely weak. Even though the antenna coupling wave,the wall direct wave and other strong clutter waves have been restrained by background compensation,the target signal is hard to appear. Traditional detection methods can′t eliminate the“ghost”tar?get generated by the environmental response. To settle this problem,models of point target,extended target and moving target were established to analyze the generation reasons of false“ghost”target. A new image detection method based on the combina?tion of amplitude and spatial location features is proposed for the through?the?wall radar. The validity of“ghost”theoretical analy?sis and this method was verified by simulation and experiments.