RESEARCH ON FREQUENCY STEPPING SIGNAL

A digital-controlled Frequency Stepping (FS) signal generator is presented. By arranging a set of digit-codes, a variety of FS signals can be generated to approach arbitrary Frequency Modulation (FM) modes. The ambiguity function of FS signals has been derived and analysed in detail. An effective signal processor, Post-Detected Matching Processor (PDMP), is introduced to process the FS signal. The characteristic function deciding the detection performance of PDMP is obtained and the comparison with All Coherence Detector (ACD) has also been done.