混合扩频技术在低轨卫星测控链路中的仿真  

Simulation of Hybrid DS/FH Spread Spectrum Technique in LEO Satellite Telemetry & Control Link

作　　者：黄文准[1] 王永生[1] 王顶[1] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710072

出　　处：《测控技术》2009年第7期99-101,107,共4页Measurement & Control Technology

基　　金：航空科学基金资助项目(2007ZC53030)

摘　　要：描述了低轨卫星测控链路的城市传播环境,确定了对应的信道模型及其典型仿真值。提出了一种混合直扩/跳频扩频方案,建立了该方案的Systemview动态仿真模型,并在不同干扰样式下对该方案的抗干扰性能进行了仿真与分析。仿真结果表明提出的方案适合低轨卫星测控链路,具有较强的抗连续波干扰能力,对改善低轨卫星测控链路的抗干扰性能具有一定的参考价值。The city transmission environments of LEO satellite telemetry ＆ control link is described, and the relevant channel models and the typical simulation parameters are introduced. A hybrid direct sequence frequency and hopping spread spectrum scheme is proposed. The simulation model is presented firstly, and then anti-jamming performance simulation and analysis are carried out in the different jamming modes. The simulation proves that the proposed scheme can be suited to the LEO satellite link and possesses stronger ant-jamming capability under the condition of multi-tone jamming. The research of the thesis has some significance to the anti-jamming performance enhancement of LEO satellite link.

关 键 词：低轨卫星通信 DS/FH扩频 SYSTEMVIEW仿真 抗干扰 

分 类 号：V474.2[航空宇航科学与技术—飞行器设计] TN973.3[电子电信—信号与信息处理]