基于典型应用场景的GNSS用户端抗干扰性能评估方法  

Evaluation Method of GNSS User-end Anti-jamming Performance Based on Typical Application Scenarios

作　　者：王月 孙付平[1] WANG Yue;SUN Fuping(School of Geospatial Information,Information Engineering University,Zhengzhou 450001,Henan,China)

机构地区：[1]信息工程大学地理空间信息学院,河南郑州450001

出　　处：《兵工学报》2025年第4期292-310,共19页Acta Armamentarii

基　　金：国家自然科学基金重点项目(42330113);国家自然科学基金面上项目(42174036、42174047)。

摘　　要：保障全球导航卫星系统(Global Navigation Satellite System,GNSS)为用户提供高精度导航定位、测速、授时信息是导航战的首要任务,然而GNSS用户端与卫星距离遥远,相较于GNSS系统端,更易受到干扰和欺骗等的蓄意毁伤。故为提升用户端对抗干扰威胁的能力、推进其抗干扰技术的发展与成熟,急需开展用户端抗干扰性能评估研究,但已有研究多针对单一类型指标、特定应用场景开展用户端抗干扰算法研究与性能分析,存在分项评估研究不足、综合评估研究缺失等问题。为此,设置单天线抗干扰、阵列天线抗干扰、惯导辅助抗干扰、无人机抗干扰这些典型应用场景,建立针对多应用场景的用户端抗干扰性能评估指标体系,并引入可用度A、可信度D、能力值C方法改进已有模型的应用局限,提出用户端抗干扰的分项性能评估方法;基于模糊综合评判思路与改进组合赋权法,改进已有加权积模型,提出用户端抗干扰的综合能力评估方法。实验结果表明,相比于已有评估模型,采用所提方法实现应用场景的多模型串联,降低了接收机的跟踪门限使其未超过45°,减小了动态测量误差率使其不大于1,增加了阵列增益使其不超过36 dB,提高了被测装备性能评估准确度及其对抗干扰威胁的能力,能有效辅助多应用场景的性能优化与装备升级。Global navigation satellite system(GNSS)users are often located far away from satellites,making them vulnerable to intentional interference and deception.Ensuring the provision of highprecision navigation positioning,speed measurement,and timing information to GNSS users becomes a primary task in navigation warfare.To enhance the anti-jamming capability of user-ends and promote the development and maturity of their anti-jamming technologies,there is an urgent need for doing research on user-end anti-jamming performance evaluation.The existing studies have mostly focused on singletype indices or specific application scenario when researching user-end anti-jamming algorithms and analyzing their performance,resulting in insufficient research on related evaluation.Therefore,this study sets up typical application scenarios,such as single-antenna anti-jamming,array antenna anti-jamming,inertial navigation-assisted anti-jamming,and unmanned aerial vehicles(UAV)anti-jamming,and establishes a user-end anti-jamming performance evaluation index system based on multi-application scenario.Furthermore,the method including availability(A),dependability(D)and capability(C)is introduced to improve the limitations of existing models,and a sub-item performance evaluation method for user-end anti-jamming is proposed.Finally,based on fuzzy comprehensive assessment approach and improved combination weighting method that enhances the existing weighted product models,a comprehensive capability assessment method for user-end anti-jamming is proposed.The experimental results show that compared with the existing models,the proposed method is used to realize the serial connection of multiple models in the application scenario,reduce the tracking threshold of receiver to less than 45°and the dynamic measurement error rate to less than 1,and increase the array gain to no more than 36 dB,thereby improving the accuracy of the performance evaluation of the measured equipment and its ability to resist jamming threats.It can effectively assist th

关 键 词：全球导航卫星系统 卫星导航对抗 用户端抗干扰能力 评估指标 性能评估方法 

分 类 号：P228.4[天文地球—大地测量学与测量工程] TN972.3[天文地球—测绘科学与技术]