卫星导航终端抗干扰性能关联参数研究  

Research on Parameters Related to Anti-jamming Performance ofSatellite Navigation Terminal

作　　者：武智佳 于合理 代桃高 耿泽淇 焦海松[1] 贾赞杰 WU Zhijia;YU Heli;DAI Taogao;GENG Zeqi;JIAO Haisong;JIA Zanjie(No.63883 Troops of PLA,Luoyang 471000)

机构地区：[1]中国人民解放军63883部队,洛阳471000

出　　处：《舰船电子工程》2024年第2期55-61,共7页Ship Electronic Engineering

基　　金：国家自然科学基金项目(编号:41804035)资助。

摘　　要：针对当前缺乏从信号处理角度分析与卫星导航终端抗干扰性能的相关因素,论文围绕干扰信号对射频前端、捕获和跟踪、定位解算过程的影响,结合实际和仿真进行具体分析,提出了干扰信号与有用信号区分能力、方位稳定度、恢复时间的射频前端关联参数,捕获灵敏度、重捕获灵敏度、跟踪灵敏度、跟踪门限的捕获和跟踪过程关联参数,定位精度保持能力、数据处理策略的定位解算过程关联参数。最后,针对各关联参数设计了相应的实验进行分析,说明了提出的关联参数对卫星导航终端抗干扰性能的具体影响。In view of the lack of analysis of the relevant factors related to the anti-jamming performance of the satellite naviga⁃tion terminal from the perspective of signal processing,this paper focuses on the influence of the interference signal on the RF front-end,acquisition and tracking,and positioning and solution processes.RF front-end parameters associated with useful signal discrimination capability,azimuth stability,recovery time,acquisition sensitivity,reacquisition sensitivity,tracking sensitivity,tracking threshold acquisition and tracking process associated parameters,positioning accuracy retention capability,and data pro⁃cessing strategy positioning solution process associated parameters.Finally,the corresponding experiments are designed and ana⁃lyzed for each correlation parameter,and the specific influence of the proposed correlation parameters on the anti-jamming perfor⁃mance of the satellite navigation terminal is explained.

关 键 词：抗干扰性能 关联参数 射频前端 捕获跟踪 定位解算 

分 类 号：TN97[电子电信—信号与信息处理]