基于信号分离估计理论的GNSS欺骗式干扰抑制算法研究

项目名称： 基于信号分离估计理论的GNSS欺骗式干扰抑制算法研究

项目编号： No.61471363

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 吴仁彪

作者单位： 中国民航大学

项目金额： 90万元

中文摘要： 通过转发或者伪造真实卫星信号,欺骗式干扰能够达到错误引导甚至控制目标接收机的目的，这对于全球导航卫星（GNSS）系统在军事与安全相关领域（民航、智能电网、移动通信等）的应用造成了巨大的威胁。由于欺骗式干扰的功率远低于噪声功率，对其检测和抑制十分困难。本项目重点研究基于信号分离估计理论抑制欺骗式干扰的算法。主要研究内容包括：基于单天线的欺骗式干扰检测与抑制、基于阵列流形已知天线阵的欺骗式干扰检测与抑制、基于阵列流形未知天线阵的欺骗式干扰检测与抑制、压制性干扰和欺骗式干扰共存时的干扰检测与抑制。有关成果不仅可以推动GNSS（尤其是北斗）在我国的应用，还可以推进阵列信号处理、自适应信号处理和现代谱分析等相关理论的发展。

中文关键词： 自适应信号处理；全球卫星导航系统；欺骗式干扰；干扰抑制

英文摘要： By retransmiting or mimicing authentic satellite signal, spoofing interference aims to mislead or control target receiver, which has been a great threat for the GNSS (Global Navigation Satellite System) applications in military and safety critical fields (civil aviation、smart grid、wirless communication,etc.). However, as the power of spoofing is much lower than that of noise, the spoofing mitigation is very difficulty. This project mainly focuses on the spoofing mitigation based on decoupled parameter estimation. The main research contents include: spoofing detection and mitigation utilizing single antenna, spoofing detection and mitigation utilizing multi-antenna with precise struction information, spoofing detection and mitigation utilizing multi-antenna with unknown struction information, simultaneously detection and suppression of jamming and spoofing interferences. Relevant outcomes can advance the GNSS (especially Beidou) apllications in China and the theory development in the fields of sensor array signal processing, adaptive signal processing and modern spectral analysis.

英文关键词： Adaptive Signal Processing;Global Navigation Satellite System;Spoofing Interference;Interference Suppression