卫星智能调零技术及其综合效能评估

Study on Smart Nulling Technique and Synthetic Effectiveness Evaluation in Satellite Communication

采用自适应调零天线能够有效增强卫星通信系统的抗干扰能力,但也会出现因干扰处于卫星覆盖区而导致调零区用户通信中断的情况。本文提出卫星智能调零技术,以信息通过量最大为准则,通过对干扰情况的判决,确定自适应调零天线的应用策略。通过比较与不采用调零和常规调零技术体制的系统,分析和评估了智能调零技术体制的综合效能,说明智能调零技术能够进一步优化卫星通信系统的抗干扰性能。

Adaptive antenna applied to satellite communication system can effectively enhance anti-jamming performance of system.However,Communication interrupt maybe arose when jam is present in satellite's overlay region.Smart nulling technique of satellite communication,which uses maximum quantity of information transmission criterion for strategies of adaptive antenna's application,is put forward.In the end,synthetic effectiveness of the system using smart nulling technique is analyzed and evaluated,and performance of the system is compared with those of systems using conventional nulling technique and without nulling technique.Synthetic effectiveness evaluation shows that smart nulling technique can optimize the anti-jamming performance of satellite communication.