基于USMN的大型操纵性水池基础轨道空间位置测量方法研究 |
A Measurement Method of Maneuvering Tank Rotary Bridge Based on USMN |
投稿时间:2016-03-29 修订日期:2016-04-12 |
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中文摘要: |
在进行大型工程测量时,
单台、单站测量仪器通常
不能完成全部的测量任务,
需要使用多站或多台仪器在不同的位置实施测量。本文介绍了一种基于统一空间测量网络 (Unified Spatial Metrology Network USMN)的测量方法,该方法对多台多站的测量数据的处理,相比传统的拟合拼接法不会引入较大的累积误差。基于USMN的测量方法通过重新分配拟合要素的权重,来降低多次拼接引入的累积误差,提高多站测量方法的精度,为大型工程测量精度的提高提供了有效的方法。通过对两种方法的多站数据拼接并观测末站数据和首站数据的闭环性及拟合圆的径向跳动,显著地观察到本文介绍的方法闭环性更好,拟合的圆径向跳动更小,相较传统方法更加接近测量的真实情况。 |
英文摘要: |
This article introduces a measuring method based on Unified Spatial Metrology Network (USMN).In large-scale engineering measurement, one instrument in one position cannot fulfill the task.Moving instrument to different positions or more than one instrument is needed. Instead of accumulating error by Best-fit in traditional way, the USMN can reduce the cumulative error by redistributing the weights of fitting elements. Therefore it increases the accuracy of multi-station measurement method? and provides an effective means in large scale engineering measurement. By comparing and observing the close degree of endˉtoˉend and changes in radial direction of two methods, the USMN has been
found closer to real situation than the traditional one. |
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中文关键词: 大型操纵性水池 统一空间测量网络 测量方法 偏差 回转轨道预埋件 |
英文关键词:maneuverin tank USMN measurement method error embedded parts |
基金项目: |
DOI:10.11823/j.issn.1674-5795.2016.03.03 |
引用本文:周闻青,冷建兴,叶欣,卢歆.基于USMN的大型操纵性水池基础轨道空间位置测量方法研究[J].计测技术,2016,36(3):10~13. |
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