卫星导航接收机抗欺骗干扰技术研究

项目名称： 卫星导航接收机抗欺骗干扰技术研究

项目编号： No.61271214

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 无线电电子学、电信技术

项目作者： 孙闽红

作者单位： 杭州电子科技大学

项目金额： 76万元

中文摘要： 本项目针对卫星导航接收机抗欺骗干扰这一富有挑战性的重要基础科学问题开展研究,以美国GPS/我国北斗卫星导航系统为研究对象，根据卫星导航欺骗干扰的产生与作用机理，从信号处理角度，开展欺骗干扰的自动检测识别新技术与新方法研究。项目研究内容包括：基于典型欺骗干扰机结构的卫星导航欺骗干扰建模与作用机理研究、基于模型的卫星导航欺骗干扰特征提取与特征选择研究、卫星导航欺骗干扰检测识别研究等。创新之处在于：1）从欺骗干扰机硬件结构出发，分析各元器件或模块给干扰信号产生过程造成的细微影响，并基于数学建模理论建立能准确描述欺骗干扰信号动态行为的行为模型和仿真模型；2）基于上述模型，提取欺骗干扰的细微特征并通过特征选择构建约简特征参数子空间；3）从统计信号处理角度提出卫星导航欺骗干扰检测识别新方法并对分辨界开展研究。本项目的研究将为我国北斗卫星导航接收机的抗干扰设计提供理论支持。

中文关键词： 通信抗干扰；卫星导航；欺骗干扰；检测识别；

英文摘要： This application aims at researching a challenging and crucial scientific problem, anti-spoofing of navigation satellite receiver. The GPS system of USA and the COMPASS system of China are chosen as study objects. From view of signal processing, the techniques and approaches of automatic detection and recogniton of spoofing are studied, based on the generation principle and the function mechanism of the spoofing signal.The contents of the study include three parts as follows. Firstly, based on the typical hardware structure of a spoofer, the spoofing jamming's model and its function mechanism are studied. Secondly, methods of feature extracion and selection of navigation satellite spoofing are researched. Third, we study the problems of how to detect and recognize the occurence of a spoofing in a receiver. The research is distinguished as: (1) Based on the hardware structure of a spoofer, the subtle effection, by the influence of each component or module, to spoofing signal in the process of generation is analyzed, and then applying mathmatical modelling theory to get behavioral and simulation models, which can accurately describe the dynamic behavior of the jamming. (2) Based on the models, the tiny features of the spoofing signal are extracted and a feature subspace is constructed by feature selection. (3) N

英文关键词： anti-jamming of communication systems；satellite navigation；spoofing jamming；detection and recognition；