Analysis and solution of rabbit ear effect in channelized receiver

Rabbit ear effect is a special problem in the channelized receiver. In this paper, response mode of rabbit ear effect is examined. From the response mode, a new eliminating method based on the response estimation is proposed. The method detects the transient energy in channelized output and determines the occurrence of rabbit ear effect. Then response of the effect in each channel is estimated to form detection threshold. Correction for the weak signals that are split by rabbit ear effect of strong signals is used according to the threshold compare marks. The method is adaptive to different rabbit ear effect caused by different radar pulse edges and simple enough to be implemented in real-time signal processing systems. (4 pages)