| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a small-sized signal processing circuit capable of calculating QR decomposition at high speed. <P>SOLUTION: The signal processing circuit respectively transforms complex correlation matrices, which are consecutively inputted at a predetermined period, into upper triangular matrices. The signal processing circuit includes: a storage unit that stores at least N-number of complex correlation matrices; a reading unit that reads matrix elements of the stored complex correlation matrix; a CORDIC calculation circuit that implements a CORDIC algorithm by a pipelined circuit system; and a QR decomposition control unit that controls the reading unit and the CORDIC calculation circuit unit to an upper triangular matrix by iteratively using the CORDIC calculation circuit unit for a single complex correlation matrix and that calculates in parallel a transformation of N-number of complex correlation matrices into upper triangular matrices in an interleaved format. <P>COPYRIGHT: (C)2012,JPO&INPIT |
