GNSS复杂电磁环境综合监测测向与分析评估技术

复杂的电磁环境是电磁辐射源集合与电波传播环境相互作用的总和.针对目前GNSS易受复杂电磁环境影响的问题,研究了GNSS复杂电磁环境综合监测测向与分析评估技术,提出了专用信道化监测方法、比幅与比相联合测向方法、卫星导航信号和电磁干扰信号综合分析方法以及GNSS复杂电磁环境影响效应分析评估方法,解决了现有通用设备在弱信号监测测向、电磁干扰信号与导航信号联合监测以及在复杂电磁环境影响效应分析评估方面存在的不足.该技术能够指导GNSS复杂电磁环境综合监测测向与分析评估设备的研制,为GNSS复杂电磁环境监测保障的工程化提供了技术支持.

GNSS Complex Electromagnetic Environment Integrated Monitoring Direction Finding and Analysis Assessment Technology

The complex electromagnetic environment is the sum of the interaction between the electromagnetic radiation source set and the radio wave propagation environment. In view of the problem that GNSS is easily affected by complex electromagnetic environment, the technology of direction finding, analysis and evaluation for GNSS complex electromagnetic environment is studied. Special channelized monitoring method, joint direction finding method of amplitude comparison and phase comparison, comprehensive analysis method of satellite navigation signal and electromagnetic interference signal and analysis and evaluation method of GNSS complex electromagnetic environment impact effect are proposed. The shortcomings for existing universal equipment in weak signal direction finding, electromagnetic interference signal and navigation signal joint monitoring, and analysis and evaluation of complex electromagnetic environment impact effect are solved. This technology can guide the development of GNSS complex electromagnetic environment comprehensive monitoring, direction finding, analysis and evaluation equipment, and provide technical support for the engineering of GNSS complex electromagnetic environment monitoring and guarantee.