Title :
Application of conjugate gradient algorithm to adaptive beamforming
Author :
Tang Jun ; Peng Yingning ; Wang Xiqin
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
In this paper, the relationship of subarray size, snapshot number and interference number is studied for different gradient computing methods. New forward and backward CGM (FBCGM) and multilayer FBCGM (MFBCGM) methods are proposed. Their advantages are summarized as follows: (1) they can be applied with a small number of snapshots. (2) They can be applied with a weaker constraint for the number of the array elements than that Mandyam (1997). (3) They perform well in coherent receiving environments. (4) They have less computational load compared to SMI and the subspace projection method.
Keywords :
antenna arrays; antenna theory; array signal processing; computational complexity; conjugate gradient methods; FBCGM; MFBCGM; adaptive beamforming; array elements; coherent receiving environments; computational load; conjugate gradient algorithm; forward and backward CGM; gradient computing methods; interference number; multilayer FBCGM; snapshot number; subarray size; Adaptive arrays; Array signal processing; Computational complexity; Convergence; Covariance matrix; Equations; Gradient methods; Resonance light scattering; Subspace constraints; User-generated content;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1999. IEEE
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-5639-x
DOI :
10.1109/APS.1999.789590
