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硐室内自由基线相对定向的精度分析

Precision Analysis of Relative Orientation Method Using Unrestrained Baseline in Chamber
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摘要 由于硐室洞径大小不固定,难以总是采用常规地面立体摄影方式布设基线。对此,提出了布设自由基线的方法;即当硐室内没有足够场地布设常规地面摄影基线时,采用平行基线摄影方式。同时根据自由基线中X、Y方向基线分量间比值与相对定向精度之间的关系,得出相对定向精度最好的X、Y方向基线分量间比值。通过实际实验,验证了提出的方法可行,推导的公式正确。 Since the diameter of chamber is not fixed,it is difficult to always lay baseline according to the conventional ground stereo photography.In this regard,the method of laying the unrestrained baseline is put forward.That is,when there is not enough space in the chamber laying conventional photography baseline,the method of parallel baseline photography can be adopted.At the same time,according to the relation between the ratio of the unrestrained baseline weight in the X and Y directions and the precision of relative orientation,the ratio of the unrestrained baseline weight in the X and Y directions which can achieve the best precision of relative orientation is got.And the experiment verifies that the method and formula of this thesis is correct.
出处 《科学技术与工程》 北大核心 2016年第27期241-245,共5页 Science Technology and Engineering
关键词 硐室 自由基线 相对定向 精度分析 chamber unrestrained baseline relative orientation precision analysis
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