Although the high-resolution materials can improve the resolution of the conventional time-reversal imaging (TRI) algorithms, they also limit the applications of TRI. In this paper, a new TRI algorithm with high-resolution is presented. Since the proposed algorithm utilizes multiple time reversal operation steps to improve resolution, it can realize high-resolution without invoking any high-resolution materials. The results show the resolution of the proposed algorithm is superior to that of the conventional TRI.
Zhang, Guangmin; Zhu, Junxiao; Li, Jiaquan; and Wang, Ning, "High-resolution imaging algorithm based on temporal focal characteristic of time-reversed signal" (2019). Faculty Publications. 134.