Mismatched Complementary-on-Receive Filtering (MiCRFt) for MIMO Radar

While the suppression of range sidelobes has received considerable attention, with a variety of solutions now possible, the mitigation of cross-correlation sidelobes for multistatic/MIMO scenarios remains a difficult problem. Here, leveraging the recent MiCRFt method that was experimentally shown to achieve complementary receive cancellation, a multi-emitter extension is posed that provides the degrees-of-freedom necessary to reduce both auto- and cross-correlation sidelobes. The ensuing MIMO MiCRFt formulation is experimentally demonstrated using simulated, loopback, and open-air measurements obtained using random FM (RFM) nonrepeating waveforms.