北斗导航终端抗干扰性能测试评估技术

Test and Evaluation Technology of Anti-jamming Performanee of Beidou Navigation Terminal

基于内场注入式评估手段,构建了北斗导航定位终端抗干扰效能评估系统,通过逼真模拟北斗导航信号、有意和无意干扰、传输信道,可对各款北斗导航定位终端进行抗干扰能力测试和评估,提出了利用捕获、跟踪和定位状态的卫星数目、载噪比和定位精度等动态变化参量评估抗干扰效能,给出了评估系统工作流程。

An anti-jamming effectiveness evaluation system of Beidou navigation and positioning terminal is constructed based on the method of infield injection,which can test and evaluate the anti-jamming ability of various kinds of Beidou navigation and positioning terminals through the realistic simulation of the generation of Beidou navigation signals,the intentional and unintentional interference,and the channel simulation.An an-ti-jamming effectiveness evaluation method using the dynamic variation parameters such as the number of satel-lites captured,tracked and located,CNR(carrier to noise ratio)and positioning accuracy is put forward and the workflow is given.