GNSS基准站网稳定性的误差椭圆法Error ellipse method for the stability of GNSS continuous operation reference station network
岳彩亚,党亚民,杨强,王虎,韩雪丽
摘要(Abstract):
我国大陆地质、地貌复杂,板块运动以及二级板块相对运动频繁,并且长时间受到大气负荷、海潮负荷以及陆地水等非构负荷因素的影响,这些都会对GPS网中测站造成点位移动,即使观测周期间隔为一个月,两期点位位移量有时仍不可忽略。该文以位于四川省的陆态网基准站和四川省CORS站网为例,使用极限误差椭圆方法对站网水平方向进行了位移显著性对比分析,并使用稳定率来表示测站位移程度,从而可直观地识别出稳定点和不稳定点;同时用数理统计的方法分析了测站高程方向的稳定性。为分析网的稳定性提供了理论基础,为挑选稳定站做永久性基准站提供了参考依据。
关键词(KeyWords): 极限误差;位移显著性;稳定率;GPS网
基金项目(Foundation): 国家自然科学基金项目(41474011,41404034);; 国家基础测绘科技项目(2016K0205);; 中国测绘科学研究院基本科研业务费项目(7771707)
作者(Author): 岳彩亚,党亚民,杨强,王虎,韩雪丽
DOI: 10.16251/j.cnki.1009-2307.2017.09.001
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