测控技术2009，Vol.28Issue(11)：19-22,32,5.
一种基于比特量化的GPS并行码捕获算法
An Improved Parallel Code Phase Search Acquisition Algorithm Based on Bit Quantification for GPS Signals
摘要
Abstract
An optimized algorithm is designed to improve parallel code phase search acquisition for GPS L1 sig-nal, which applies to soft-defined GPS receiver for fasting acquisition. In the following, the model of parallel code phase search acquisition algorithm using FIT is analyzed. By the characteristics of the signal power spec-trum, the algorithm is optimized by using the first half of spectrum information. Subsequently, bit quantification method is used to achieve parallel data processing by storing multi-channel data to a single memory unit. The result shows that the modified algorithm improves acquisition speed five times by decreasing little signal-noise ratio, and achieves fast acquisition.关键词
SDR/并行码相位搜索捕获/功率谱/比特量化Key words
SDR/ parallel code phase search/ power spectrum/ bit quantification分类
信息技术与安全科学引用本文复制引用
曹耀传,王澄非,潘树国..一种基于比特量化的GPS并行码捕获算法[J].测控技术,2009,28(11):19-22,32,5.基金项目
国家科技支撑计划重点项目课题(2008BAJ11B01,2008BAJ11B05) （2008BAJ11B01,2008BAJ11B05）
东南大学新进博士基金(9222002477) （9222002477）
