Abstract
This paper studies the optional effective methods for clutter suppression and platform motion compensation in a heliborne battlefield surveillance radar (HBSR), which includes the traditional DPCA method, /spl Sigma//spl Delta/-ADPCA method, /spl Sigma//spl Delta/-STAP method, /spl Sigma//spl Delta/-STAP method with random-element auxiliary channel and extended /spl Sigma//spl Delta/-STAP method. A comparative analysis is performed. Theoretical analysis and computer simulation further illustrates that the extended /spl Sigma//spl Delta/-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, heliborne crab, velocity error, etc.). Therefore, the extended /spl Sigma//spl Delta/-STAP approach is feasible and available for clutter suppression in HBSR.
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