航空兵器Issue(3)：13-17,5.
一种高灵敏度 GPS 信号捕获算法
High-Sensitivity Acquisition Algorithm for GPS Signal
摘要
Abstract
In order to improve the ability of capture of GPS software receiver in the low SNR environ-ments, an approach which combines coherent integration and differentially coherent integration algorithm effectively is provided.This algorithm eliminates square loss effectively and improves SNR remarkably . Meanwhile the parallel code phase search acquisition algorithm is used to reduce the amount of computa -tion, and achieves high sensitivity acquisition .The simulation and experimental results show that the new acquisition algorithm provides stronger capacity of acquainting signal and higher processing gain in the weak environments.关键词
高灵敏度捕获/GPS信号/差分相干/并行码相位Key words
high sensitivity acquisition/GPS signal/differentially coherent/parallel code phase分类
军事科技引用本文复制引用
莫凡,王新龙..一种高灵敏度 GPS 信号捕获算法[J].航空兵器,2013,(3):13-17,5.基金项目
国家自然科学基金（61074157）；卫星应用研究院创新基金项目（2012－1517）；航空科学基金（20090151004）支持项目 （）
