电子测量与仪器学报

裴晶,马颖,刘春.多项式拟合法在周跳探测中的研究与改进[J].电子测量与仪器学报,2017,31(11):1828-1834

多项式拟合法在周跳探测中的研究与改进

Research and improvement of polynomial fitting method in cycle slip detection

DOI：10.13382/j.jemi.2017.11.020

英文关键词:BDS cycle slip detection carrier phase observation polynomial fitting method

基金项目:合肥市北斗卫星导航重大应用示范资助项目

作者	单位
裴晶	安徽四创电子股份有限公司合肥230031
马颖	安徽省机电排灌总站合肥230022
刘春	合肥工业大学电气与自动化工程学院合肥230009

Author	Institution
Pei Jing	Anhui Sun Create Electronics Co. Ltd., Hefei 230031, China
Ma Ying	Anhui Electromechanical Irrigation and Drainage Station, Hefei 230022, China
Liu Chun	School of Electrical and Automation Engineering, Hefei University of Technology, Hefei 230009, China

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中文摘要:

针对北斗卫星定位系统(BDS)在载波相位观测中出现的周跳问题,建立改进的多项式拟合模型对载波相位观测中产生的周跳进行探测与修复。该方法采用3个接收机测得与同一颗卫星间的载波相位观测值,同时结合接收机与卫星间的载波相位测出两组单差值,利用一组单差值进行的多项式拟合可获得产生周跳的历元数,结合另一组单差值的多项式拟合可确定哪组载波相位发生周跳,最后对周跳进行修复。通过实验仿真发现,该方法不仅可以测得0.2以上的周跳,也可以测出0.2以上的周跳发生在哪组载波相关观测值中。

英文摘要:

Aiming at the problem that the Beidou satellite positioning system (BDS) has cycle slip in the carrier phase observation, the method of improved polynomial fitting model can make cycle slip detection and repair in carrier phase observation. This method uses the carrier phase observations with the same satellite measured by three receivers, combined the carrier with the phase between the receiver and satellite can measure two groups of single difference. Using a set of single difference with polynomial fitting can obtain the epoch number of cycle slip, using another group of single difference with polynomial fitting can determine which group to have carrier phase cycle slip, at the end of the week, repair the cycle slip. The experimental results show that this method not only can measure more than 0.2 jumps, but also can measure more than 0.2 week jump which group of carrier observations occurred.

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