CAJ | 학술논문

瞬态干扰是天波超视距雷达中一种常见的干扰，经常抬高雷达的距离多普勒二维检测背景，造成目标检测困难，因此需要加以抑制。提出了基于压缩感知的天波雷达瞬态干扰抑制方法。该方法首先确定瞬态干扰的位置，然后利用压缩感知来重构该位置上的杂波和目标信号，从而实现瞬态干扰抑制。为了避免瞬态干扰对信号重构的影响，从单位矩阵中抽取若干行构成压缩感知的观测矩阵。实测数据处理表明，该方法可以有效地抑制瞬态干扰，显著改善雷达的探测性能。
순태간우시천파초시거뢰체중일충상견적간우，경상태고뢰체적거리다보륵이유검측배경，조성목표검측곤난，인차수요가이억제。제출료기우압축감지적천파뢰체순태간우억제방법。해방법수선학정순태간우적위치，연후이용압축감지래중구해위치상적잡파화목표신호，종이실현순태간우억제。위료피면순태간우대신호중구적영향，종단위구진중추취약간행구성압축감지적관측구진。실측수거처리표명，해방법가이유효지억제순태간우，현저개선뢰체적탐측성능。
The transient interference is a common kind of interference in skywave over-the-horizon ra-dar.It often raises the range-Doppler detection background,which makes it very difficult to detect target.A transient interference suppression approach based on the compressive sensing is presented in this paper.In this approach the situations of the transient interferences are firstly found and then the clutter and target sig-nals at these situations are reconstructed using compressive sensing to realize suppression of the transient in-terferences.To avoid the effect of transient interferences on the reconstruction of signals,the measurement matrix of compressive sensing is formed from many selected rows of the identity matrix.The real skywave radar data processing shows that the presented approach can effectively suppress the transient interference and significantly improve the detection performance of radar.