Evaluation of time-staggered MIMO FMCW in HFSWR

This paper evaluates the performance of the time-staggered (TS) multiple-in-multiple-out (MIMO) Frequency Modulated Continuous Wave (FMCW) radar approach and compares it to a conventional phased-array approach to obtain a proof-of-concept. The approach combines stretch processed FMCW and colocated MIMO radar by using multiple time-staggered chirps. The advantages of forming virtual antenna elements can be seen as a flexible solution regarding antenna configuration for a mobile or space-limited High-Frequency Surface Wave Radar (HFSWR).