混合扩频测控系统抗干扰效能评估与优化选择  

Anti-Interference Efficiency Evaluation and Optimal Selection of Hybrid Spread Spectrum TT&C System

作　　者：李国靖 周赤[2] 秦国领 

机构地区：[1]装备学院研究生管理大队,北京101416 [2]陆军航空兵学院指挥系,北京101100 [3]酒泉卫星发射中心,甘肃酒泉732750

出　　处：《现代防御技术》2018年第1期19-26,共8页Modern Defence Technology

摘　　要：针对航天测控系统在复杂电磁环境下的抗干扰效能评估问题,以直扩/跳频混合扩频测控系统为研究对象,分析了系统基本结构和主要性能参数,从信号捕获、跟踪测量、数传通信3个能力视角出发,构建了一种多性能参数结构约束的抗干扰效能评估指标体系,有效解决了传统指标体系中各指标之间一致性模糊、属性分散的缺点。在此基础上,根据不同的评估需求,提出了最大效能和最小代价2种评估指标体系选择模式,分别建立了基于层次分析法(AHP)的综合抗干扰效能评估模型和基于灰色关联法的抗干扰系统参数优化选择模型,通过仿真分析验证了模型在抗干扰评估和系统参数优化选择中的可行性和有效性。Aiming at the issue of anti-jamming efficiency evaluation of telemetry,tracking and control（ TTC） system in complex electromagnetic environment,the anti-interference evaluation index system is built with multiple performance parameters constraining from the respective of signal acquisition,tracking and communication after analyzing the structure and main performance parameters of direct sequence/frequency hopping（ DS/FH） hybrid spread spectrum TTC system,which effectively solves the problem of indeterminate consistency and attributive dispersion between different performance indexes.On this basis,an alternative scheme of index system including the maximum anti-interference efficiency mode and the minimum cost mode is proposed,and a synthetic anti-interference efficiency evaluation model based on analytic hierarchy process（ AHP） and an optimal system parameter selection model based on grey correlation are respectively built according to different evaluation requirements. Simulations have demonstrated that the models proposed are feasible and effective for anti-interference evaluation and system parameter optimization.

关 键 词：混合扩频 测控系统 抗干扰 效能评估 指标体系 层次分析 灰色关联 优化选择 

分 类 号：TN973.3[电子电信—信号与信息处理] TP391.9[电子电信—信息与通信工程]