【摘要】 本文采用时域插入导频法,对断续2PSK信号进行相干接收,由TA7193单片集成电路完成载波解调,获得满意效果。该系统采用单芯同轴电缆进行时分多路传输,数据传输速率为3～6Mb/s,误码率低于10^-7,传输距离大于1000m,可同时双向传输多种高速数据。更多还原

【Abstract】 This paper presents a method which can be used to realize the time-sharing two-way transmis-sion. Through inserting pulse-modulated carrier wave in time-domain to guide frequency, this method has successfully solved the problem of local-carrier restoration from intermittent signal, and so makes it easy to coherently demodulate the intermittent 2PSK signal with low bit-error-rate. An experimental system has been made. Its transmission rate is 3～6Mb/s, transmission distance is 500～1000m and bit-error-rate is lower than 10^-7.In this system different kinds of signals,such as acoustic data, power pulses,command data and DC current can be two-way transmitted simultaneously through only a single-lead coaxial cable.更多还原