频标偏移对GNSS接收机捕获性能的影响分析  

Influence of Frequency Standard Offset on GNSS Receiver Acquisition Performance

作　　者：满丰[1] 

机构地区：[1]中国电子科技集团公司第二十研究所,西安710068

出　　处：《现代导航》2014年第2期103-107,共5页Modern Navigation

摘　　要：任何GNSS接收机对频标的性能都有一定的要求,即允许频标只能在某一范围内偏移,超出这个范围,接收机就不能正常工作。本文从频标的特性分析入手,描述了频标产生偏移的原因,同时结合接收机的捕获原理,阐述了频标偏移对接收机捕获性能的影响,对接收机设计具有一定的参考价值。Any GNSS receiver has certain requirements on the performance of frequency standard that allows the frequency standard to be offset within a certain range. Beyond this range, the receiver will not work. Starting from the analysis on the characteristics of frequency standard, this paper describes the reasons for frequency standard offset, combines with the acquisition principles of the receiver, and also elaborates the influence of frequency standard offset on the receiver acquisition performance, which provides theoretical guidance for the design of the receiver.

关 键 词：频标 偏移 捕获 多普勒 

分 类 号：TN914[电子电信—通信与信息系统]