高灵敏度自适应数字多波束导航抗干扰技术研究

High sensitivity adaptive digital multi-beamforming navigation anti-jamming techniques based on space, frequency, code, and polarization domain will be studied under the Radio Navigation Satellite System (RNSS). By exploiting the advantages of high gain and strong interference resistance ability of multi-beamforming anti-jamming processing, we will focus on digital multi-beamforming anti-jamming methods and algorithms, parameters estimation of jamming signal and anti-jamming processing, joint processing methods and algorithms of space-time-frequency-polarization domain, and beam tracking and filtering of anti-jamming multi-beam. Some new concepts, theory, methods, and algorithms are hopeful to be proposed under the support of this project. Key scientific problems to be solved are involved in new adaptive anti-jamming methods with joint space-time-frequency-polarization processing, fast adaptation of the anti-jamming algorithms, and multiple targets optimization of performance, complexity, and robustness. We will try to achieve some innovative algorithms and conclusions of adaptive constraint multi-beam control, anti-jamming processing with multi-beam pointing to navigation signal direction of arrival, anti-jamming processing and algorithm with autonomic multi-beam tracking, joint anti-jamming processing of space, frequency, code, and polarization domain. The innovation of this project will lay a strong foundation for RNSS receivers with high sensitivity and strong interference resistance ability in complex electromagnetic environment.

本项目拟以我国全球卫星导航系统(RNSS)为背景，开展空域、时域、频域、码域、极化域多维域联合的高灵敏度自适应数字多波束导航抗干扰技术研究，充分利用多波束高增益和高抗干扰能力优势，开展数字多波束抗干扰方法与算法、干扰信号参数估计与抗干扰处理方法与算法、极化-空-时-频多维域导航抗干扰联合处理方法与算法、多波束抗干扰滤波器的波束跟踪滤波算法四个方面的内容研究，探索新概念，掌握新原理，提出有效的处理新方法、新准则以及新算法。拟解决的关键科学问题包括数字多波束多维域自适应抗干扰的联合处理新准则、抗干扰算法的快速自适应性以及以性能、复杂度和稳健性为联合度量的多目标优化算法。力求在数字多波束的自适应约束波束控制、波束自适应指向的数字多波束抗干扰处理、波束自治跟踪数字多波束抗干扰处理、空-时-频-极化多维域导航抗干扰联合处理方面取得创新性研究成果，为我国未来的全球卫星导航系统接收机奠定理论基础，提升卫

卫星导航信号到达武器平台和武器系统导航接收机终端极其微弱，容易受到有意和无意压制式干扰。本项目针对导航对抗中的干扰抑制问题,开展了空域、时域、频域、码域、极化域多维域联合的高灵敏度自适应数字多波束导航抗干扰技术研究，充分利用多波束高增益和高抗干扰能力的优势，开展了数字多波束抗干扰方法与算法、干扰信号参数估计与抗干扰处理方法与算法、极化-空-时-频多维域导航抗干扰联合处理方法与算法、多波束抗干扰滤波器的波束跟踪滤波算法四个方面的内容研究。重点解决了数字多波束多维域自适应抗干扰的联合处理新准则、抗干扰算法的快速自适应性以及以性能、复杂度和稳健性为联合度量的多目标优化算法等关键科学问题。在数字多波束的自适应约束波束控制、波束自适应指向的数字多波束抗干扰处理、波束自治跟踪数字多波束抗干扰处理、空-时-频-极化多维域导航抗干扰联合处理方面取得了创新性研究成果。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37篇，其中SCI检索19篇、EI检索17篇。获国防科技进步二等奖1项，成果鉴定1项，授权专利6项，受理专利15项。