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.
出处
《测控技术》
CSCD
北大核心
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)
