航空器系统通信信息流抗干扰优化设计与仿真  

Optimization Design and Simulation of Information Flow in Aircraft Anti-jamming Communication System

作　　者：李健 刘丽霞[1] 刘经宇[1] 王东 LI Jian;LIU Li - xia;LIU Jing - yu;WANG Dong(Beijing Institute of Control and Electronic Technology, Beijing 100038, China)

机构地区：[1]北京控制与电子技术研究所,北京100038

出　　处：《计算机仿真》2018年第4期131-136,共6页Computer Simulation

摘　　要：以新一代航空器系统快速发射、航空器与地面测控系统高可靠无线通信为应用背景。无线通信较有线通信方式具有传输速率快,并大幅减少了航空器与地面测控系统间的硬连接线缆。然而无线通信易受到敌方的电磁干扰威胁,通信可靠性难以得到保障。针对复杂电磁环境下的航空器与地面测控系统通信误码率较高的问题,提出了基于无线通信的高可靠信息流优化设计方法,研究了无线通信数据链路层LDPC纠错编码、应用层CRC校验重传优化设计,实现了航空器与地面测控系统通信误码率大幅降低。分析与仿真结果表明,信息流优化设计能够降低航空器与地面测控系统通信误码率,可满足航空器与地面测控系统高可靠和抗干扰要求。This paper is based on the highly reliable wireless communication between aircraft and ground monito- ring and control system. Compared with wired communication, wireless communication has a fast transmission rate, and can significantly reduce the hard -wired cable between aircraft and ground monitoring and control system. How- ever, the wireless communication is vulnerable to enemy＇s electromagnetic interference, and the communication relia- bility is difficult to be guaranteed. In view of the problem of large BER between aircraft and ground monitoring and control system in complex electromagnetic environment, the paper puts forward an optimization design method for in- formation flow with high reliability based on wireless communication. The LDPC coding in wireless communication data link layer and CRC check retransmission optimization design in wireless communication application layer were studied, and a significant reduction in error rate between aircraft and the ground monitoring and control system was a- chieved. Analysis and simulation results show that, the optimization design of information flow can reduce the error rate between aircraft communication system and ground monitoring and control communication system, and can meet the high reliability and anti - interference requirements of aircraft and ground monitoring and control system.

关 键 词：无线通信 高可靠 抗干扰 信息流设计 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]