摘要
目前全球卫星导航系统(global navigation satellite system,GNSS)信号捕获技术研究较多,但缺少系统地分类、总结和性能比较,为此,按照时域串行捕获、频域并行捕获两个分类标准,同时区分单周期累积和多周期累积,对国内外捕获研究领域的相关方法进行系统的整理和综述,对4类捕获方法进行性能对比。仿真结果验证了捕获方法各自的优劣,对捕获领域加强了理论支撑,为工程应用提供了一定技术储备。
There are many studies on GNSS（global navigation satellite system）signal acquisition technology in recent years,but few on the mixing summary,classification and performance comparison.To solve this problem,the acquisition algorithms at home and abroad were studied and a comprehensive review was made.Three categorization standards were introduced：the serial search algorithm searches,the parallel search algorithm searches and the serial and parallel combination algorithm searches.The single cycle accumulation and multi-cycle accumulation were taken into consideration.The comparison and the analysis were carried out on the performance of four kinds of acquisition algorithms in theory and simulations.The study provides theoretical supports to GNSS signal acquisition technology,and builds a foundation for engineering applications.
出处
《计算机工程与设计》
北大核心
2016年第1期5-11,共7页
Computer Engineering and Design
基金
国家自然科学基金项目(61303207)
山西省科学技术发展基金项目(20120321024-01)
