| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce the power consumption of the DS-CDMA type signal reception device. SOLUTION: An orthogonally detected receive signal is inputted to matched filters 31 and 32 constituted by using current-mode adding circuits and correlated to data of a corresponding 1-bit spread code series. The outputs of the matched filters 31 and 32 are inputted to a level detecting circuit 4 and sample holding circuits 81 and 82. The level detecting circuit 4, a cyclic integration circuit 5, and a peak detection part 6 detects the position of the peak of the correlation output and with the control signal, outputted from a control part 7, which corresponds to the correlation peak position, the sample holding circuits 81 and 82 sample and hold the matched filter outputs at the correlation peak position and outputs them to a synchronous detecting circuit 9 and a rake composition part 10.</p> |
