| 摘要 |
PROBLEM TO BE SOLVED: To attain with a simple consfiguration initial synchronization of a clock signal, even for a modulation system other than orthogonal modulation. SOLUTION: A cosine sine output circuit 103 receives an integration clock ICLK, a sampling signal SSAMP, a positive/negative switching signal SPM, a cosine component integrated signal SCCI, and a sine component integrated signal SCSI, to obtain a cosine signal SCOS which corresponds to a cosine component and a sine signal SSIN corresponding to a sine component in the initial phase of a symbol clock, and an angle detector 109 receives the cosine signal SCOS and the sine signal SSIN to obtain the initial phase of the symbol clock SCLK. |
