Title :
The JADE-estimated CM array for correlated cochannel signal recovery
Author :
Pirak, Chniyod ; Srasrisuwan, Wnraifqar ; Jitapunkul, Somchni
Author_Institution :
Dept. of Electr. Eng., Chulalongkorn Univ., Bangkok, Thailand
fDate :
Oct. 28 2003-Nov. 1 2003
Abstract :
This paper proposed to use the joint approximate diagonalisation of eigen matrices (JADE) algorithm for the cascade multistage constant modulus (CM) array in order to recover correlated cochannel signals in the multipath environment. The JADE algorithm was need as the initial-weight estimator. Furthermore, we propose a concept to compromise between the high computational complexity of the JADE algorithm and the degradation of the signal-captured performance of the cascade multistage CM array as well. The experimental results show that this scheme has the signal-captured performance close to MVDR array technique, which is the best, in comparison with our proposed scheme, and the original cascade multistage CM array.
Keywords :
antenna arrays; antenna theory; array signal processing; blind source separation; cochannel interference; correlation methods; eigenvalues and eigenfunctions; matrix algebra; multipath channels; blind adaptive array processing; cascade multistage constant modulus array; correlated cochannel signals; eigenmatrices; joint approximate diagonalisation of eigen matrices; multipath environment; Adaptive arrays; Computational complexity; Costs; Degradation; Joining processes; Least squares approximation; Narrowband; Receiving antennas; Signal processing; Source separation;
Conference_Titel :
Antennas, Propagation and EM Theory, 2003. Proceedings. 2003 6th International SYmposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-7831-8
DOI :
10.1109/ISAPE.2003.1276676