Range ambiguity resolution for high PRF radar with random frequency hopping waveforms

Abstract

In the condition of high PRF waveforms, several pulse repetition intervals are needed to receive the echoes from a target, which makes the range of the target ambiguous. In this paper, we propose a novel method for range imaging. In our method, the additional phase term produced by range ambiguity is derived, and then considered in establishing the match filter. The high resolution range profiles can be obtained by applying the match filtering step to the echoes. Simulation results demonstrate the validity of this method.