北斗系统姿态测量中周跳探测与修复方法

Cycle slips detecting and repairing methods in BDS attitude surveying

针对姿态测量基于短基线精密相对定位,而观测值的周跳直接影响基线解算精度,将导致姿态解算结果数据质量下降的问题,提出了姿态测量应用中的周跳组合探测修复方法。文章在分析姿态解算原理及误差影响程度的基础上,结合经典电离层残差法和多项式拟合法,探讨其在北斗卫星导航系统中周跳探测修复的方法原理、缺陷及对北斗数据探测修复效果,结合实际情况提出了姿态测量应用中的组合探测修复方法。采集真实数据实时解算,定量计算了修复后的基线解算精度和姿态测量效果,验证了所提出的方法可用于实际测量解算,处理后的姿态测量精度满足使用需求,研究结果对北斗姿态解算有参考价值。

Aiming at BDS attitude surveying based on short baseline precise relative positioning, and the cycle slips of observing value directly affect the baseline calculating accuracy, all those will lead to decrease the quality of the attitude data, this article propose the combinational repairing method applicant in BDS attitude measuring. Based on these analysis of the principle and the error influence degree to the re- sult, combined with classic ionosphere residual error and polynomial fitting method, this article discusses the detecting and repairing method to cycle slips and the repairing effect in the BDS. Combined with actual situation, it propose the combinational repairing method can applicant in BDS attitude measuring. Using the data that collected in real-time situation, it gets the baseline calculating precision through detection and repairing, and gets the attitude measuring result after calculating. The result verifies the method can be used in actuaI measurement, and the attitude measuring precision after processing may meet the requirements, this method can apply to the field of BDS attitude surveying.