Title :
A novel robust beamformer based on sub-array data subtraction for coherent interference suppression
Author :
Yu, Lei ; Liu, Wei ; Langley, Richard
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield, Sheffield, UK
Abstract :
A novel robust beamformer is proposed to suppress the coherent interferences while maintaining a distortionless response for the desired signal with direction-of-arrival (DOA) estimation errors. By dividing the received array data vector into two sub-vectors and subtracting one sub-vector from the other, a new data vector is obtained, based on which a set of constraints is formed for calculating the beamforming coefficients. An improved performance is achieved, as shown by simulations.
Keywords :
array signal processing; direction-of-arrival estimation; interference suppression; vectors; beamforming coefficients; coherent interference suppression; direction-of-arrival estimation errors; received array data vector; robust beamformer; subarray data subtraction; Array signal processing; Decorrelation; Direction of arrival estimation; Distortion; Estimation error; Interference cancellation; Interference constraints; Interference suppression; Robustness; Sensor arrays;
Conference_Titel :
Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-2709-3
Electronic_ISBN :
978-1-4244-2711-6
DOI :
10.1109/SSP.2009.5278524
