Title :
Cochannel signal recovery using the MUSIC algorithm and the constant modulus array
Author :
Mathur, Amit ; Keerthi, Arvind V. ; Shynk, John J.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
We describe an approach to cochannel signal recovery for correlated sources that is based on the the MUSIC (multiple signal classification) algorithm and the constant modulus (CM) array. The MUSIC algorithm provides estimates of the source angles of arrival, which are used to initialize a parallel bank of CM arrays. These adaptive beamformers are updated by the constant modulus algorithm (CMA) to capture and track the source signals, even when they are highly correlated. Computer simulations are presented to illustrate the transient behavior of the proposed algorithm.<>
Keywords :
array signal processing; correlation methods; direction-of-arrival estimation; telecommunication channels; tracking; transient analysis; MUSIC algorithm; adaptive beamformers; angles of arrival estimation; cochannel signal recovery; computer simulations; constant modulus algorithm; constant modulus array; correlated signals; correlated sources; multiple signal classification; parallel bank; source signals capture; source signals tracking; transient behavior; Adaptive arrays; Computer simulation; Direction of arrival estimation; Multiple signal classification; Navigation; Signal analysis; Signal processing; Signal processing algorithms; Steady-state;
Journal_Title :
Signal Processing Letters, IEEE
