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高灵敏度GNSS接收机的结构及性能

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摘要 目前,全球卫星导航系统(GNSS)在定位、导航等很多民用和军事领域中正广泛地应用,但大多数应用都是在信号条件较理想的环境中。在室内、森林和城市等复杂环境条件下时,由于遮挡、多径干扰等影响非常严重,可使卫星信号信噪比下降20 d B左右,导致定位精度将大大降低,GNSS无法得到很好的应用。随着卫星导航接收机的不断发展,高灵敏度接收机技术受到很大关注,弱信号处理技术成为研究的热点。因此对GNSS弱信号处理的研究有着非常重要的意义。该文首先阐述了GNSS软件接收机尤其是高灵敏度接收机基本架构和设计中的关键问题。
作者 王华龙
出处 《科技创新导报》 2016年第8期26-27,共2页 Science and Technology Innovation Herald
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参考文献8

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