GPS导航对抗数据质量特征实例分析  

Example Analysis of Data Quality Characteristics for GPS Navigation Countermeasure

作　　者：陈新东 蔡鹏[1] 高大远[1] 朱海荣[1] 王超[1] CHEN Xin-dong;CAI Peng;GAO Da-yuan;ZHU Hai-rong;WANG Chao(Navy Submarine Academy,Qingdao 266000,China)

机构地区：[1]海军潜艇学院,山东青岛266000

出　　处：《舰船电子对抗》2022年第6期90-94,共5页Shipboard Electronic Countermeasure

摘　　要：针对导航对抗对卫星数据质量和定位服务的影响,利用叙利亚周边IGS站可用的GPS卫星观测数据,结合信噪比(SNR)、卫星可见数、精度衰减因子(DOP)和定位误差等评价指标,全面分析了GPS受干扰期间数据质量情况。结果表明:空袭期间,GPS信号受到了干扰,导致卫星可见数降低,DOP值变大,定位误差增大,系统定位精度降低,此评估内容和方法可以为未来导航对抗提供参考标准。Aiming at the influence of navigation countermeasure on satellite data quality and positioning service,the GPS satellite observation data that is available at IGS stations in the vicinity of Syria are used to comprehensively analyze the data quality during the course when GPS is jammed,combining with the evaluation indexes such as signal to noise ratio(SNR),satellite visible number,dilution of precision(DOP)and positioning error.The results show that the GPS signal is interfered during airstrikes,which leads to the decrease of satellite visible number,the increase of DOP value,the increase of positioning error,and the decrease of system positioning accuracy.The evaluation content and method can provide a reference standard for future navigation countermeasure.

关 键 词：导航对抗 信噪比 卫星可见数 干扰 

分 类 号：P228.4[天文地球—大地测量学与测量工程]