| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sliding correlator of spread spectrum communication, which can cope with an environmental change in a transmission line and reduce the scale of the circuit. SOLUTION: This invention provides the sliding correlator that selects and outputs a digital reception signal and an inverse spread code in time division by each sample timing, applies a correlation arithmetic operation to the digital reception signal and the inverse spread code by each sample timing in time division, contains the result of correlation arithmetic operations by each sample timing within one-chip time including one idle time or more, accumulates the result of arithmetic operations by each sample timing in time division, outputs the accumulation result as a correlation output, and conducts phase control to adjust the output timing of the digital reception signal and the inverse spread code corresponding to a deviation in the sample timing due to the environmental change in the transmission line.</p> |
