吴迪军

• 1:中铁大桥勘测设计院集团有限公司

摘要(Abstract)：

针对现有方法普遍存在的计算过程繁琐、计算量较大等问题,该文提出了一种基于秩亏自由网平差的全球导航卫星系统(GNSS)控制网已知点兼容性检验方法。该方法利用秩亏自由网平差中重心基准的唯一不变特性,通过对已知点平差坐标与已知坐标较差(即坐标残差)的比较分析,检查和判断各已知点坐标的精度及其兼容性,筛选出符合相应等级精度要求的起算点,简化了繁琐的计算过程,减小了计算工作量,避免对全部已知点不同组合的多次重复计算,提高了检验的效率和有效性。该方法简便易行,可在工程实践中推广应用。

关键词(KeyWords)： GNSS控制网;已知点兼容性;秩亏自由网平差;重心基准

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吴迪军

DOI: 10.16251/j.cnki.1009-2307.2019.08.017

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