Fluctuating extended target detection in clutter environment compressed sensing MIMO radar

This paper extends previous work for extended target detection via Multiple Input Multiple Output (MIMO) bistatic radar using a compressed sensing (CS) approach by considering the detection of multiple fluctuating targets in the presence of transmit waveform dependent clutter. Detection waveforms and receiver filter are designed jointly using an algorithm that minimizes the mutual coherence of the transmit waveform and receive filter matrix product. Different from previous work, which required knowledge of the target impulse response (TIR), this paper relaxes this key assumption and studies detection of multiple extended Swerling type I targets. Results indicate that the designed waveforms outperform benchmark waveforms in terms of false alarm and detection rates for Swerling targets with unknown impulse responses.