Abstract：This paper studies the optional effective methods for clutter suppression and platform motion compensation in Heliborne Battlefield Surveillance Radar (HBSR), which includes the traditional DPCA method, ΣΔ-ADPCA method, ΣΔ-STAP method, ΣΔ-STAP method with random-element auxiliary channel and extended ΣΔ-STAP method. A comparative analysis is performed. Theoretical analysis and computer simulation further illustrates that the extended ΣΔ-STAP method is suitable for modern electronic warfare environment. It has
stronger clutter and jamming rejection performance in the concentrated jamming environment and stronger error robustness in the non-ideal real environment (i.e., array element. amplitude
and phase errors, helihorne crab, velocity error, etc).In addition, this method can be imple-
merited easily for phased array heliborne radar as well as continuous antenna system. Therefore the extended ΣΔ-STAP approach is feasible and available for clutter suppression and platform
motion compensation in HBSR.
2001, Vol. 23 
