衰落信道下JTIDS系统的误码性能研究及仿真  

Transmission Performance Analysis and Simulation of JTIDS over Rician Fading Channels

作　　者：张宏欣[1] 王永斌[1] 刘宏波[1] 

机构地区：[1]海军工程大学,武汉430033

出　　处：《火力与指挥控制》2013年第10期145-148,176,共5页Fire Control & Command Control

基　　金：海军工程大学科学研究基金资助项目(HGDQNJJ020)

摘　　要：联合战术信息分发系统(Joint Tactical Information Distribution System,JTIDS)是美军C4ISR系统的核心组成部分。它采用RS编码、循环码移键控调制(Cyclic Code-Shift Keying,CCSK)、跳频MSK波形调制等相结合的技术体制。通过对该技术体制进行研究,分析了JTIDS数据链采用相干解调方式在莱斯衰落信道环境下传输性能,研究并得出了JTIDS系统在莱斯衰落信道下的报文符号错误概率,并应用Matlab仿真工具对JTIDS系统进行了链路级仿真;仿真结果符合JTIDS性能特性,验证了理论分析的正确性。为后续建立JTIDS网络仿真平台,评估JTIDS系统通信网络性能提供了理论依据。Joint Tactical Information Distribution System （JTIDS） served as core component for modem C4ISR among US armed force,JTIDS adopted combined mechanism including RS error coding, Cyclic Code-Shift Keying（CCSK） and frequency hop msk waveform modulation. Based on the technical system,transimission performance over Rician fading channel is analysed while adpoting the scheme of coherent demodulation,the message symbol error probability is derived;also a Monte-Carol simulation based on Matlab is developed in accordance with JTIDS system. The simulation result held consistency to the feature of JTIDS,which indicated the validity of theoretical analysis and underlay the establishment and estimation of JTIDS communication network.

关 键 词：联合战术信息分发系统 莱斯衰落 仿真 符号错误概率 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]