测绘科学技术学报2015，Vol.32Issue(6)：583-588,6.DOI:10.3969/j.issn.1673-6338.2015.06.008
一种顾及电离层约束的非差周跳的实时探测与修复方法
A Real-Time Undifferenced Cycle Slip Detection and Repair Method with Consideration to Ionosphere Constraints
摘要
Abstract
This paper presents a real-time undifferenced cycle slip detection and repair method with consideration to ionosphere constraints. The method constructs three linearly independent observations. The combinations were di-vided into extra-wide lane ( EWL) , wide lane ( WL) and narrow lane ( NL) like TCAR( Three Carrier Ambiguity Resolution) . Cycle slips on the combinations were determined sequentially in three cascaded steps. And then the cycle slips on the original carrier phase observation can be uniquely identified. The wavelength of the wide lane magnified 5.43 times ( GPS, 3.4 times) than traditional MW combination. The first and second step employs the geometry-free and Ionosphere-free MW combination and the residual ionospheric delay is ignored. But the residual ionospheric delay must be considered in narrow lane because of its short wavelength. To particular case, the iono-sphere residual method assists the narrow lane of cycle slip detection. Results indicated that the approach can ef-fectively detect and correct cycle slip in real time.关键词
全球导航卫星系统/周跳探测与修复/三频/MW组合/模糊度Key words
GNSS/cycle silp detection and repair/triple frequency/melbourne-wubbena combination/ambiguity分类
天文与地球科学引用本文复制引用
陈泉余,隋立芬,肖国锐,刘乾坤,王凌轩..一种顾及电离层约束的非差周跳的实时探测与修复方法[J].测绘科学技术学报,2015,32(6):583-588,6.基金项目
国家自然科学基金项目(41274016；41174006；40974010)；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）
