摘要
在提高卫星导航定位系统的抗干扰能力优化问题的研究中,卫星信道面临众多类型的干扰信号,难以采用一种干扰抑制技术有效抑制所有类型的干扰。为解决上述问题,提出了一种新的卫星导航定位系统抗干扰体系架构,即采用时频域干扰类型识别、功率分析和干扰DOA估计相结合的干扰认知方法,给出了基于干扰认知的卫星导航定位系统抗干扰体系架构设计。理论分析与仿真结果显示,该抗干扰架构设计能够针对不同的干扰类型,检测不同的干扰信号,简化干扰抑制算法,分级、分类进行干扰的抑制。
In the study of improving and optimizing the anti-jamming ability of the satellite navigation and positioning system,the satellite channel is faced with many types of jamming signals,which is difficult to beeffectively suppressed all kinds of jamming by one kind jamming suppression technology.In order to solve these problems,a new anti-jamming architecture for satellite navigation and positioning system has been proposed,which adopts the jamming cognitive method combining with the time-frequency domain jamming type recognition,power analysis and jamming DOA estimation.The anti-jamming architecture design of the satellite navigation and positioning system is given based on the jamming cognition.Theoretical analysis and simulation results show that the anti-jamming architecture can detect the different jamming signals according to different jamming types,simplify the jamming suppression algorithm,grade and classify-to suppress jamming signals.
出处
《科学技术与工程》
北大核心
2014年第20期67-71,共5页
Science Technology and Engineering
基金
陕西省科学技术研究发展计划项目(2011K06-36)
(XJ130225)资助
关键词
卫星导航定位系统
抗干扰技术
干扰认知
时频分析
satellite navigation and positioning system
anti-jamming techniques
jamming cognition
time-frequency analysis
