Spread-Spektrum-Empfänger und Empfangsverfahren

摘要

A spread spectrum receiving apparatus comprises: a reproducing circuit (25) to reproduce a carrier signal from a reception signal and a diffusion code; a demodulation circuit (26) to demodulate the reception signal into a base band signal on the basis of the carrier signal reproduced by the reproducing circuit; and a judgment circuit to judge the reception data from the base band signal from the demodulation circuit. The reproducing circuit (25) has an operation circuit to arithmetically operate the reception signal and the diffusion code (24) and a detection circuit to detect a difference between the phases of an output of the operation circuit and an output of an oscillator. The oscillator oscillates at a carrier frequency in accordance with a phase difference detected by the detecting circuit.