| 多波束声纳图像整体灰度不均匀及中央波束区反射异常校正方法 |
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| 引用本文： | 张会娟,阳凡林,李峰,董春敏.多波束声纳图像整体灰度不均匀及中央波束区反射异常校正方法[J].全球定位系统,2012,37(1):25-27,31. |
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| 作者姓名： | 张会娟 阳凡林 李峰 董春敏 |
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| 作者单位： | 1. 山东科技大学测绘学院,山东青岛,266590
2. 山东省青岛市勘察测绘研究院,山东青岛,266033 |
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| 基金项目： | 国家自然科学基金项目，山东科技大学研究生创新基金项目 |
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| 摘 要： | 多波束声纳图像多条带之间存在灰度不均匀,中央波束区反向散射强度数据存在异常,不利于进一步利用回波数据。论述了多波束声纳图像整体灰度不均匀的产生原因以及中央波束区反向散射强度异常的主要因素。对声纳图像灰度不均衡进行了有效改正,鉴于中央波束区数据的特点给出了对中央波束区的反向散射异常数据的改正方法。
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| 关 键 词： | 声纳图像 回波强度 灰度不均衡 中央波束区 |
The Correction Method of Intensity Distortions and Backscattering Exquisite Data from Multi-beam |
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| ZHANG Hui-juan,YANG Fan-linI,LI Feng,DONG Chun-min.The Correction Method of Intensity Distortions and Backscattering Exquisite Data from Multi-beam[J].Gnss World of China,2012,37(1):25-27,31. |
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| Authors: | ZHANG Hui-juan YANG Fan-linI LI Feng DONG Chun-min |
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| Institution: | 1. Geomatics College, Shandong University of Science and Technology, Qingdao Shandong 266590, China ; 2. Qingdao Surveying and Mapping Research Instutute, Qingdao Shandong 266033, China) |
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| Abstract: | Since the intensity distortions and there are some abnormal backscattering da- ta of multi-beam sonar image, the data before bottom classfying must be correct. The reasons that leading to intensity distortions and the main factors producing the exquisite backscatter- ing data near nadir are discussed in this paper. The intensity distoritions is corrected, and so is the abnormal data according to analyzing the principle of multi-beam system. |
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| Keywords: | Sonar image backscattering strengths intensity distortions near nadir re- flection |
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