扩频测控信号抗干扰性能评价方法研究

Research on Anti-jamming Capability Evaluation Method for Spread Spectrum TT&C Signals

在分析有源干扰机理和扩频测控信号处理原理的基础上,提出以基于模糊图的有效面积和一定高度下切割面积评价扩频测控信号固有抗干扰性能的方法。模糊图的有效面积和切割面积越小,则扩频测控信号的固有抗干扰性能越强。仿真示例表明,所提面积指标均可有效反映信号固有抗干扰性能。该方法具有可计算性,可为扩频测控信号的抗干扰性能评价提供方法依据。

Based on the analysis of active jamming mechanism and spread spectrum Tracking Telemetry and Command （SS Tr＆c） signals processing principle, a method using the ambiguity plots effective areas and the incision areas at a certain level to evaluate inherent anti - jamming capability of SS Tr＆c signals is put forward. The smaller the computed areas become, the stronger the anti - jamming performance gets. Simulation results show that the proposed metrics are effective to assess signals anti - jamming performance. The methodology is computable, which provides reference for signals anti- jamming capability evaluation.