| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a signal processor, or the like, capable of simplifying system analysis even if the system includes a signal processor, or the like, for coordinate conversion processing (rotary coordinate conversion processing or stationary coordinate conversion processing). <P>SOLUTION: The signal processor, or the like, which performs coordinate conversion based on the phase θ of a reference sine wave signals between two sine wave signals Xα, Xβ having phases different from each other by π/2, and two signals Xd, Xq in the rotary coordinate system includes a coordinate conversion means using a rotation matrix represented, using a matrix diagonalizing a rotation matrix of complex representation consisting of matrix elements of ±1 and ±j and its inverse matrix, by multiplying the matrix and its inverse matrix from the right and left of the rotation matrix diagonalized. Consequently, analysis of a system including a signal processor, or the like, can be simplified. <P>COPYRIGHT: (C)2013,JPO&INPIT |
