基于高维代数理论的卫星导航极化多维域干扰抑制技术

This project aims at the severe challenges faced by the global satellite navigation system in the current complex electromagnetic environment, and conducts research on polarization multidimensional domain interference suppression technology based on high-dimensional algebraic theory. It will fully exploit the advantages of joint polarization-space-time-frequency-code domain processing, explore new concepts of multi-dimensional interference suppression, master new principles, and propose effective processing of new guidelines, methods, and algorithms. The key scientific issues to be solved include the flattening of multidimensional information characterization for anti-jamming processing, the underdetermined problem of anti-jamming degree of freedom in complex electromagnetic environments, and the multi-objective optimization problem of combined measures of anti-jamming performance, complexity and robustness. We will try to achieve innovative results in the unified framework theory of navigation interference suppression for tensor characterization, multidimensional domain navigation freedom expansion, and reconfigurable interference suppression technologies. The innovation of this project will lay a strong foundation for GNSS receivers with strong interference resistance ability in complex electromagnetic environment.

本项目针对未来复杂电磁环境下全球卫星导航系统的稳健性和安全性面临的严峻挑战，开展基于高维代数理论的卫星导航极化多维域干扰抑制技术研究。重点开展基于多元代数的导航干扰抑制、基于张量表征的导航干扰抑制、分离式极化敏感天线导航干扰抑制以及多维域可重构的导航干扰抑制方法与算法研究。充分挖掘极化-空-时-频-码多维域联合处理的优势，探索多维干扰抑制的新概念，掌握新原理，提出有效的处理新准则、新方法、新算法。拟解决的关键科学问题包括抗干扰处理多维信息表征的扁平化问题，复杂电磁环境下抗干扰自由度欠定问题，以及抗干扰性能、复杂度和稳健性联合度量的多目标优化问题。力求在极化多维域张量表征的导航干扰抑制统一框架理论、多维域导航抗干扰自由度拓展技术、极化多维域可重构优化干扰抑制技术等方面取得创新性研究成果，对我国新一代北斗卫星导航系统深入实施军民融合发展战略，具有重要的战略意义和现实意义。

本项目针对未来复杂电磁环境下全球卫星导航系统的稳健性和安全性面临的严峻挑战，开展基于高维代数理论的卫星导航极化多维域干扰抑制技术研究。重点开展基于多元代数的导航干扰抑制、基于张量表征的导航干扰抑制、分离式极化敏感天线导航干扰抑制以及多维域可重构的导航干扰抑制方法与算法研究。充分挖掘极化-空-时-频-码多维域联合处理的优势，探索多维干扰抑制的新概念，掌握新原理，提出有效的处理新准则、新方法、新算法。重点解决了多维信息处理表征的低维化问题，抗干扰自由度欠定问题，以及抗干扰性能、复杂度和稳健性联合度量的多目标优化问题。在极化多维域张量表征的导航干扰抑制统一框架理论、多维域导航抗干扰自由度拓展技术、极化多维域可重构优化干扰抑制技术等方面取得创新性研究成果。本项目的部分研究成果已应用于我国某重点型号卫星导航抗干扰接收机，取得了良好的效果。本项目在国内外重要刊物和会议上发表研究论文18篇，其中SCI检索15篇、EI检索3篇。获国防科技进步一等奖1项，成果鉴定1项，受理专利18项。