TY - GEN
T1 - Signal modulus design for blind source separation via algebraic known modulus algorithm
T2 - 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
AU - Wu, Jwo-Yuh
AU - Yang, Wen Fang
AU - Wang, Li-Chun
AU - Lee, Ta-Sung
PY - 2008
Y1 - 2008
N2 - This brief considers blind signal source separation via algebraic known modulus algorithm. It is shown that through proper signal modulus design the estimation accuracy of the beamforming vector, as well as the performance of signal separation, can be improved. Specifically, based on a matrix perturbation analysis we propose a criterion, in the form of minimizing the maximal singular value of the modulus code matrix, for enhancing robustness of the beamforming vector against measurement noise. A closed-form solution is then derived and its performance is tested through numerical simulation.
AB - This brief considers blind signal source separation via algebraic known modulus algorithm. It is shown that through proper signal modulus design the estimation accuracy of the beamforming vector, as well as the performance of signal separation, can be improved. Specifically, based on a matrix perturbation analysis we propose a criterion, in the form of minimizing the maximal singular value of the modulus code matrix, for enhancing robustness of the beamforming vector against measurement noise. A closed-form solution is then derived and its performance is tested through numerical simulation.
KW - Algebraic constant modulus algorithm
KW - Algebraic known modulus algorithm
KW - Blind source separation
KW - Condition number
UR - http://www.scopus.com/inward/record.url?scp=51749094356&partnerID=8YFLogxK
U2 - 10.1109/ISCAS.2008.4542092
DO - 10.1109/ISCAS.2008.4542092
M3 - Conference contribution
AN - SCOPUS:51749094356
SN - 9781424416837
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 3013
EP - 3016
BT - 2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Y2 - 18 May 2008 through 21 May 2008
ER -