ANALYTICAL METHOD FOR BLIND BINARY SIGNAL SEPARATION

The blind separation of multiple co-channel binary digital signals usi ng an antenna array involves finding a factorization of a data matrix X into X = AS, where all entries of S are +1 or -1. It is shown that t his problem can be solved exactly and noniteratively, via a certain ge neralized eigenvalue decomposition. As indicated by simulations, the a lgorithm is robust in the presence of noise. An interesting implicatio n is that certain cluster segmentation problems can be solved using ei genvalue techniques.