Title :
Simplifying the computational aspects of STAP
Author :
Bojanczyk, Adam W. ; Melvin, William L.
Author_Institution :
Dept. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
Space-time adaptive processing (STAP) holds the potential to improve weak target detection from airborne radar platforms. However, the computational load and nonhomogeneous environments are two issues seriously limiting practical STAR implementation. We address the former issue by considering approximate numerical techniques appropriate for airborne radar STAP. Reduced computational load makes greater weight update rates possible, thereby allowing localized STAP processing in range and application of improved weight training strategies to mitigate difficulties associated with the latter issue. We verify the utility of our approach using computer simulation and measured data from the Multichannel Airborne Radar Measurements (MCARM) program
Keywords :
adaptive signal processing; airborne radar; approximation theory; array signal processing; computational complexity; conjugate gradient methods; covariance matrices; direction-of-arrival estimation; phased array radar; radar applications; radar detection; radar interference; radar signal processing; MCARM program; Multichannel Airborne Radar Measurements; adaptive radar; airborne radar platforms; antenna array; approximate numerical techniques; computational load; computer simulation; conjugate gradient method; interference covariance matrix; localized STAP processing; measured data; nonhomogeneous environments; range; space-time adaptive processing; weak target detection; weight training; weight update rates; Additive noise; Airborne radar; Covariance matrix; Force measurement; Interference; Laboratories; Least squares approximation; Pulse measurements; Radar measurements; Spaceborne radar;
Conference_Titel :
Radar Conference, 1998. RADARCON 98. Proceedings of the 1998 IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-4492-8
DOI :
10.1109/NRC.1998.677988
