METHOD FOR RECOVERING A SPARSE COMMUNICATION SIGNAL FROM A RECEIVE SIGNAL

摘要

The invention relates to a method (100) for recovering a sparse communication signal from a receive signal, the receive signal being a channel output version of the sparse communication signal, the channel comprising channel coefficients being arranged to form a channel matrix, the sparse communication signal being a 3-ary signal, the method (100) comprising determining (101) a first auxiliary signal from the channel matrix and the receive signal, the first auxiliary signal comprising first auxiliary signal coefficients, determining (103) a second auxiliary signal from the channel matrix and the receive signal, the second auxiliary signal comprising second auxiliary signal coefficients, the second auxiliary signal coefficients indicating a sparsity of the first auxiliary signal coefficients, and zeroing (105) first auxiliary signal coefficients if corresponding second auxiliary signal coefficients are smaller than or equal to a predetermined threshold.