Patent Document ID: 9390068
Application ID: 13980193
Patent Flag: 1

Claim One:
1. A signal processing circuit that respectively transforms complex covariance matrices, which are consecutively inputted at a predetermined period, into upper triangular matrices, the signal processing circuit comprising: a storage unit that stores at least N-number of complex covariance matrices; a reading unit that reads matrix elements of the stored complex covariance matrices; a CORDIC calculation circuit that implements a CORDIC algorithm by a pipelined circuit system; and a QR decomposition unit that controls the reading unit and the CORDIC calculation circuit to calculate an upper triangular matrix by iteratively using the CORDIC calculation circuit on a single complex covariance matrix and that calculates in parallel a transformation of N-number of complex covariance matrices into upper triangular matrices in an interleaved format, where the QR decomposition unit divides a calculation process, from inputting a single complex covariance matrix to outputting an upper triangular matrix, into N-number of process steps, and calculates respectively different process steps of the N-number of complex covariance matrices in parallel in an interleaved format.