| 光栅法在船体横扭角测量中的应用 |
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| 引用本文： | 王建军,王颖.光栅法在船体横扭角测量中的应用[J].光学精密工程,2005,13(3):371-375. |
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| 作者姓名： | 王建军 王颖 |
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| 作者单位： | 国防科学技术大学,湖南,长沙,410073;中国人民解放军63921部队,北京,100094;中国人民解放军63921部队,北京,100094 |
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| 摘 要： | 介绍了测量船船体变形测量系统几种测量方法的基本工作原理,比较了这几种测量方法的优缺点,在此基础上提出了一种新的测量方法-光栅法。该方法涉及的测量系统不仅体积小、质量轻,便于安装调试,而且精度也比较高,克服了前几种方法的不足。光栅法采用了图像高精度亚像素定位方法,可提高测量精度。对该方法的测量精度进行了理论分析与仿真试验,从理论误差和试验结果中,可得出结论:光栅法的测角精度可优于5″,能达到测量船船体变形测量系统的要求。
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| 关 键 词： | 图像处理 亚像素处理 变形测量系统 光栅法 横扭角 |
| 文章编号： | 1004-924X(2005)03-0371-05 |
| 收稿时间： | 2005-03-22 |
| 修稿时间： | 2005年3月22日 |
Application of raster metering to hull transverse twist measurement |
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| WANG Jian-Jun,WANG Ying.Application of raster metering to hull transverse twist measurement[J].Optics and Precision Engineering,2005,13(3):371-375. |
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| Authors: | WANG Jian-Jun WANG Ying |
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| Affiliation: | 1. National University of Defence Technology, Changsha 410073,China;
2. CPLA 63921 Unit, Beijing 100094,China |
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| Abstract: | Some methods metering instrumentation ship's hull deformation are generalized, and their advantages and disadvantages are compared. A new raster metering method is put forward, which not only has some advantages of small bulk, light weight and ease of installation, but also has higher precision. A high precision sub-pixel location technology is used in this approach and the precision of angle metering can be higher. Through theoretic analysis and practical experiment, the results show the precision of angle metering has excelled 5 arc second. |
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| Keywords: | image processing sub-pixel processing deformation metering system raster metering transverse twist angle |
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