Direct Data Domain D3 Approach for Space-Time Adaptive Processing in Colocated MIMO Radar

This paper presents a novel approach for direct data domain space time adaptive processing(STAP) in colocated MIMO radar on a moving platform. This approach (also knownas deterministic STAP), unlike conventional statistical STAP, suppresses the interference signal without the requirement foran interference covariance matrix. This paper investigates MIMO STAP filter in a non-homogeneous environment where there are no secondary data to estimate interference covariance matrix. First, the signal model for colocated MIMO radar on a moving platform is presented. Then, the proposed direct datadomain MIMO STAP filter is derived while maximizing the degrees of freedom. Simulations are provided to demonstratethe performance of the proposed deterministic in comparison with statistical STAP in non-homogeneous environments.

کلیدواژه ها:

Clutter suppression ، Direct data domain least square method ، Multiple-Input Multiple-Output (MIMO)radar ، Space time adaptive processing (STAP)