赵亮;达朝宗;周星;吉长东;徐爱功;

• 1:甘肃省测绘工程院
• 2:辽宁工程技术大学测绘与地理科学学院

摘要(Abstract)：

在高精度GNSS测量中,周跳的存在直接影响到整周模糊度的解算及最终定位精度。针对目前各省市连续运行基准站网多系统观测数据的获取导致周跳探测工作量增加,该文基于甘肃省卫星定位连续运行基准站网(GSCORS)双频观测值提出了一种满足普遍条件的多系统周跳探测方法。采用相位减伪距结合电离层残差法分别对GPS和BDS原始观测值进行周跳探测与修复,通过对相应载波的模拟周跳探测发现,BDS较大的卫星钟差和伪距噪声影响了数据质量,其周跳检测量时间序列波动大于GPS,对7周以上周跳探测的精度较GPS会有1周的偏差,但电离层残差法能对BDS相位减伪距法探测残留的1周小周跳进行二次探测并修复。实验最终证实该方法能够有效探测并且正确分离GPS和BDS每个频率1周以上的周跳。

关键词(KeyWords)： 周跳探测与修复;相位减伪距;电离层残差;周跳检测量;GPS;BDS

Abstract:

Keywords:

基金项目(Foundation):

作者(Authors): 赵亮;达朝宗;周星;吉长东;徐爱功;

DOI: 10.16251/j.cnki.1009-2307.2018.02.005

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