| Based on analysis of the properties of some single modulated signals, two kinds of new hybrid Radar signals having the property of LPI: FSK/PSK~ and PSK/PPM, is designed. The properties of frequency spectraL ambiguity function~. range-velocity resolution.. Doppler and LPI of each signal are discussed, then come to the conclusion that the efficiency of high resolution, low probability of intercept and anti-jam is proved by the results of computer simulation. A computer simulation software is also programmed. |
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