TY - GEN
T1 - A constrained constant modulus algorithm based on uniform linear arrays
AU - Zhang, Lei
AU - Liu, Wei
AU - Langley, Richard J.
PY - 2010/5
Y1 - 2010/5
N2 - A novel constant modulus algorithm (CMA) is proposed based on a uniformly spaced linear array by constraining its weight vector to a specific conjugate symmetric form. The constraint is derived from the beamformer with an optimum output signal to interference plus noise ratio (SINR). The effect of the additional constraint is equivalent to adding a second step to the original adaptive algorithm. With this constraint, the modified CMA will always generate a weight vector in the desired form for each update and the number of variables is effectively reduced by half, leading to a faster convergence rate and an improved SINR performance. The proposed idea is general and can be extended to many other variations of the standard CMA.
AB - A novel constant modulus algorithm (CMA) is proposed based on a uniformly spaced linear array by constraining its weight vector to a specific conjugate symmetric form. The constraint is derived from the beamformer with an optimum output signal to interference plus noise ratio (SINR). The effect of the additional constraint is equivalent to adding a second step to the original adaptive algorithm. With this constraint, the modified CMA will always generate a weight vector in the desired form for each update and the number of variables is effectively reduced by half, leading to a faster convergence rate and an improved SINR performance. The proposed idea is general and can be extended to many other variations of the standard CMA.
UR - https://www.scopus.com/pages/publications/77953817549
U2 - 10.1109/ISCCSP.2010.5463479
DO - 10.1109/ISCCSP.2010.5463479
M3 - Conference article published in proceeding or book
AN - SCOPUS:77953817549
SN - 9781424462858
T3 - Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010
BT - Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010
T2 - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP-2010
Y2 - 3 March 2010 through 5 March 2010
ER -