一种断续2PSK信号的相干接收方法  

A Method for Coherent Receiving of Intermittent 2PSK Signal

作　　者：赵俊渭[1] 幸平[1] 李泳[1] 丁玮[1] 

机构地区：[1]西北工业大学,西安710072

出　　处：《电信科学》1993年第3期38-40,共3页Telecommunications Science

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。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.

关 键 词：相移键控信号 接收 载波恢复 

分 类 号：TN911.25[电子电信—通信与信息系统]