超短波跳扩频电台抗扫频干扰的性能仿真研究  

Simulation Research on Anti-frequency Sweeping Jamming Performance in Ultrashort Wave DS / FH Radio

作　　者：章小梅[1] 孙倩[1,2] 危水根[2] 

机构地区：[1]海军航空工程学院青岛校区,山东青岛266041 [2]南昌航空大学信息工程学院,江西南昌330063

出　　处：《通信技术》2013年第11期9-13,共5页Communications Technology

基　　金：军内科研项目~~

摘　　要：依据超短波跳扩频电台的工作机理,采用Matlab中的Simulink分别建立了直扩、跳频、跳扩结合三种通信方式下的仿真模型以及扫频干扰模型。不仅研究了当存在扫频干扰时,改变扩频增益和跳频速度的参考值,仿真得出三种扩频方式下的误码率并进行了比较,还进一步探讨了改变扫频干扰参数(如扫频周期、扫频带宽等)情况下,计算各种通信方式下的干扰容限,比较得出跳扩结合模式抗扫频干扰性能最佳的结论。Based on the working mechanism of ultrashort wave DS/FH radio and with Simulink in Matlab, three simulation models of DS, FH, DS/FH communication modes and frequency sweeping jamming model are established when frequency sweeping interference exists and the reference values of spreading gain and frequency hopping speed are changed. The bit error rates resulted from the simulation under three kinds of spread spectrum are studied and compared, and under the condition that the sweeping interference parame- ters （as the sweep cycle, sweep frequency bandwidth） are changed, the calculation of interference toler- ance in various communication modes is explored. The conclusion shows that DS/FH mode has the best anti-frequency sweeping jamming performance.

关 键 词：DS FH混合扩频 扫频干扰 Simulink 仿真 

分 类 号：TN914.4[电子电信—通信与信息系统]