| 摘要 |
A phase detection system in which an original modulation signal is detected from a first complex baseband signal obtained through orthogonal demodulation of an FM signal and output, a second complex baseband signal having cosine and sine components of a phase change DELTA phi of the first complex baseband signal in a predetermined time interval tau is rotated until a rotation angle theta becomes DELTA phi , and rotation angle data indicative of the rotation angle iota is detected and output.
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