Title :
Robust adaptive beamforming in alpha-stable noise environments
Author :
Tsakalides, Panagiotis ; Nikias, Chrysostomos L.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We develop an new adaptive beamforming technique based on fractional lower-order moment theory. The proposed adaptive beamformer adjusts the array response to a desired signal while discriminating against impulsive interference modeled as a stable process. Simulation results show that the new technique performs better in localizing a target both in space and Doppler, and thus offers the potential for improved airborne radar performance in space-time adaptive processing (STAP) applications
Keywords :
adaptive radar; adaptive signal processing; airborne radar; array signal processing; interference suppression; radar signal processing; stability; statistical analysis; STAP application; adaptive beamforming; airborne radar performance; alpha-stable noise environments; array response; fractional lower-order moment theory; impulsive interference; lower order statistics; robust technique; space-time adaptive processing; statistical model; target localisation; 1f noise; Adaptive arrays; Airborne radar; Array signal processing; Interference; Noise robustness; Radar applications; Sensor arrays; Signal processing; Working environment noise;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3192-3
DOI :
10.1109/ICASSP.1996.550156
