Ultra wide band (UWB) wireless communications has many advantages and it is one of the hottest research spots. Through better channel estimation,the UWB system can improve the performance of its transmission and reception.At the same time, with the breakthrough of compressed sensing theory in recent years, UWB channel estimation has further development, which arouses researchers'attention. In this paper, we research on the applications of compressed sensing used in UWB channel estimation, which has importan...