| 摘要 |
PROBLEM TO BE SOLVED: To provide a signal detection method for reducing the number of times of repeating a repeat algorithm.SOLUTION: First, a MIMO channel matrix H is acquired (step S1) and before applying a repetitive lattice reduction method, pre-processing is performed (step S2). In pre-processing, (A1) pre-vector order selection is performed on each response vector and (A2) pre-vector reduction is performed on the selected vector. Next, in each repeat step (k), an intermediate reduction channel matrix HT(k) and an intermediate transform matrix T(k) are calculated (step S4). At such a time, (B1) vector order selection is performed on a vector (i) of an intermediate reduction channel matrix HT(k-1) obtained in the last repeat step, (B2) vector reduction is performed on the selected vector and (B3) processing is executed for confirming a reduction condition for the reduced vector and updating a vector index (i). |
