Abstract:

The echo eclipse problem of a phase-coded quasi-continuous wave (quasi-CW) radar is studied from the perspective of waveform design. A waveform design based on combination of long code with short code and synchronous alternation of carrier frequency (CF) and waveform parameters calculation based on echo-eclipse-ratio are proposed, which can not only solve the severe eclipse problem of short range targets and simultaneously detect the whole range, but also expand the signal bandwidth, improve the complexity and ECCM-ability  of signals and reduce the probability acquired.