SPREAD SPECTRUM COMMUNICATION SYSTEM

摘要

PURPOSE:To provide the spread spectrum communication system in which the error rate is not increased even on the occurrence of a hit without decreasing the transmission speed. CONSTITUTION:Plural input data subject to DS modulation by a DS spread communication system are given to an arrangement converter 4, only each 1st chip of data are collected to generate an FH 1st frame and 2nd and 7th chips only are collected respectively to generate FH 2nd to FH 7th frames. The FH frame is subject to FH modulation by an FH spread multiplier 6 and the resulting frame is sent. The data are FH-demodulated and restored to the original data arrangement by an inverse arrangement converter 11 to convert a burst error into a random error.