A semi-blind algebraic constant modulus algorithm

A.L. Swindlehurst
2004 IEEE International Conference on Acoustics, Speech, and Signal Processing  
A modification to the Algebraic Constant Modulus (ACM) algorithm is proposed that exploits the presence of known pilot symbols within the transmitted data. The pilot symbols are used to place soft constraints on the subspace in which the ACM solution should lie, and relax some of the identifiability conditions required by ACM. The primary advantage of the proposed method is that sources transmitting linearly independent pilot data can be separated without resorting to a joint diagonalization
more » ... diagonalization procedure, and hence without computing the beamformers of signals that are not of interest. Authorized licensed use limited to: IEEE Editors in Chief. Downloaded on August 17, 2009 at 20:03 from IEEE Xplore. Restrictions apply.
doi:10.1109/icassp.2004.1326859 dblp:conf/icassp/Swindlehurst04 fatcat:qv47gcfzbvgz7k4aqcf2ixsbea