Sparse and low-rank matrix decomposition based micro-motion target indication in through-the-wall radar

Abstract

Micro-motion indication of human target is widely used in civil and military applications. In through-the-wall (TTW) scenarios, human echo is usually heavily blurred by clutter. This Letter proposes a sparse and low-rank matrix decomposition based micro-motion indication method to indicate human targets using UWB TTW radar. The slow-time range matrix is decomposed into a low-rank matrix corresponding to background echo, and a sparse matrix corresponding to micro-motion echo. Both simulation and experimental results show the superiority of the proposed method.