In this chapter, STAMP processing that combines STAP and MFP has been developed. Simulations show that STAMP coherently combines signal multipath spread in azimuth and Doppler and greatly enhances the target detection as well as providing target range and depth classification and localisation. In future studies, the robustness of STAMP against array shape error, frequency mismatch and environmental mismatch as well as how STAMP performs in other tactical scenarios will be addressed.