On signal detection with mainlobe cancellation interference in Multisite Radar Systems and MIMO radars

Signal detection in a background of mainlobe interference is one of the most difficult problems in radar practice because interference cancellation is usually accompanied with signal suppression. This problem is successfully solved in Multisite Radar Systems (MSRSs) with uncorrelated signal fluctuations at the inputs of receiving stations. There are published works where the capability of MIMO radars to cancel mainlobe interference without signal suppression using a number of different waveforms transmitted with arbitrary phases is declared. It is important to ascertain this capability of MIMO radars.