GNSS抗干扰技术综述

随着电磁环境的日益复杂、干扰技术的不断进步，全球卫星导航系统（Global Navigation Satellite System，GNSS）的各类应用受到了严重阻碍，在强干扰环境中，扩频增益不足以对干扰进行有效抑制，需采用各种抗干扰措施。对GNSS抗干扰技术进行了分类，概述了不同抗干扰技术的研究现状及进展，并对GNSS干扰源与干扰类型进行了归纳总结，给出了不同干扰类型对应的抗干扰方法，进一步对比分析了几类常见自适应算法的性能，最后指出了GNSS抗干扰技术未来的研究趋势。

Overview of GNSS Anti-interference Technology

With the increasing complexity of electromagnetic environment and the continuous progress of interference technology,various applications of global navigation satellite system(GNSS) are severely hindered.In strong interference environment,the spread spectrum gain is not enough to effectively suppress interference,so various anti-interference measures are needed.In this paper,the research results of GNSS anti-interference technology are reviewed.The anti-interference technology of GNSS is classified,and the current states and progress of different anti-jamming technologies are outlined.The GNSS interference sources and interference types are summarized,and the corresponding anti-interference technology is given for different interference types.Then,the performance of several common adaptive algorithms are compared and analyzed.Finally,the future development direction of GNSS anti-jamming technology is pointed out.