Abstract
Recently, discrete frequency coding waveform with linear frequency modulation (DFCW-LFM) has been proved to have good autocorrelation sidelobe peak and cross ambiguity peak. This paper derives the multiple-input multiple-output (MIMO) radar ambiguity function (AF) of DFCW-LFM. Based on the AF, a bistatic MIMO high-frequency surface wave radar (HFSWR) system is considered to investigate the resolution performance improvement introduced by waveform diversity and MIMO technique. Simulation results showed that MIMO radar can provide superior location resolution than traditional bistatic HFSWR, and the variation of carrier series of DFCW-LFM influences the sidelobe level of AF.
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