SPREAD SPECTRUM COMMUNICATION EQUIPMENT

摘要

PURPOSE:To realize channel multiplexing in the direct spread spectrum communication equipment of the delay detection system by providing plural channels with different data rates and allowing a receiver side to use a delay circuit having a delay time equal to or a multiple of a natural number of a data rate of a desired channel so as to detect data with a delay. CONSTITUTION:A channel A reception section 15 is made up of a 1st delay circuit 151, a 1st multiplier 152, and a 1st low pass filter 153 and the 1st delay circuit 151 has a delay time of, e.g. 1000ns. A received signal through a transmission line 10 is delayed by 1000ns at the 1st delay circuit 151, and the multiplier 152 multiplies the delayed signal with the received signal itself. The 1st low pass filter 153 whose cut-off frequency is 1.0MHz eliminates undesired frequency components and a signal outputted from the 1st low pass filter 153 is provided as 1st reception data 154 whose data rate is 1.0Mb/s.