全球定位系统Issue(4)：8-13,6.DOI:10.13442/j.gnss.1008-9268.2015.04.002
G PS 弱信号捕获算法的研究
Comparison Study on Acquisition Algorithm of GPS Signals
摘要
Abstract
Signal acquisition is the most important step of the all GPS signal processing . At present more and more field are closely related to the use of the satellite navigation sys‐tem especially the signals which under the low SNR environment that is becoming more and more hotpot .It establish the GPS weak signal acquisition algorithms models ,then analyzes the processing gain of algorithms effect . The classic GNSS weak signal acquisition algo‐rithms including the coherent integration ,non‐coherent integration and the differential co‐herent integration which are putted forward detailed .It also analysis not only the three algo‐rithms w hich about the processing gain but also the detection performance of the algorithms . The three simulations show that the best acquisition algorithms is the differential coherent integration ,which can apply to weak signal acquisition more better .关键词
捕获/相干累积/非相干累积/差分相干累积/信噪比/检测性能Key words
Acquisition algorithms/coherent integration/non-coherent algorithm/dif-ferential coherent algorithm/processing gain/detection performance分类
信息技术与安全科学引用本文复制引用
苏晓东,孔维杰..G PS 弱信号捕获算法的研究[J].全球定位系统,2015,(4):8-13,6.基金项目
黑龙江省自然科学基金 （）
