测绘科学技术学报Issue(5)：467-472,6.DOI:10.3969/j.issn.1673-6338.2014.05.006
北斗三频数据实时周跳探测与修复方法对比分析
Comparative Study of Three Kinds of Beidou Real-Time Cycle-Slip Detection and Repair Methods
摘要
Abstract
The methods of triple-frequency cycle-slip detection and correction based on geometry-free phase combi-nation, code-phase combination and LAMBDA algorithm have been introduced in this paper. Then the performance of geometry-free phase combinations and code-phase combinations was assessed under different intervals. The ex-periment result indicated that the geometry-free phase combinations achieved better detection sensitivity than code-phase combinations which were affected by code noise and multipath error. Three cycle-slip repair methods were compared from the two aspects of time consumption and success rate. The result indicated that the method based on geometry-free phase combination got the worst performance which was mainly caused by the searching method de-pended on the empirical value. The method based on code-phase combination did not need searching step which made itself the quickest one, but some of the cycle-slips were not determined correctly because of the influence of code noise and multipath error. The method based on LAMBDA algorithm cost less time and had the highest suc-cessrate because the LAMBDA technique could flat the n dimensional search space and control the impact of errors remained after between epoch difference. Considering the analysis above, a method using two selected geometry-free phase combinations to detect cycle-slip and the LAMBDA technique to determine the cycle-slip was recom-mend.关键词
北斗三频数据/周跳探测与修复/无几何相位组合/伪距相位组合/LAMBDA算法Key words
Beidou triple-frequency data/cycle-slip detection and correction/geometry-free phase combination/code-phase combination/LAMBDA algorithm分类
天文与地球科学引用本文复制引用
肖国锐,隋立芬,甘雨,戚国宾..北斗三频数据实时周跳探测与修复方法对比分析[J].测绘科学技术学报,2014,(5):467-472,6.基金项目
国家自然科学基金项目(41274016；41174006；40974010；41374041)；地理信息工程国家重点实验室开放基金项目( SKLGIE2013-M-2-1)。 （41274016；41174006；40974010；41374041）
