一种线面组合的水下地形匹配算法
P229.5; 针对当前面匹配算法中采用Hu矩描述海底地形特征时存在细节辨识能力差而导致定位精度较低等问题,提出了一种线面组合的水下地形匹配算法.首先,引入经典TERCOM算法作为线匹配算法,改进其相似性度量方法和匹配区的搜索策略;然后,构造一种基于几何相似性的面匹配算子,用于在地形基准图中选取实测地形模型面的最优匹配;最后,设计一种基于固定阈值的线面算子的组合策略,实现水下地形匹配定位.试验结果表明,相比基于Hu矩的地形匹配算法,本文所提线面组合算法的定位精度明显提高,且稳健性更强....
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| Published in | 测绘学报 Vol. 47; no. 10; pp. 1406 - 1414 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
海军大连舰艇学院军事海洋与测绘系,辽宁大连,116018
01.10.2018
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-1595 |
| DOI | 10.11947/j.AGCS.2018.20170673 |
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| Abstract | P229.5; 针对当前面匹配算法中采用Hu矩描述海底地形特征时存在细节辨识能力差而导致定位精度较低等问题,提出了一种线面组合的水下地形匹配算法.首先,引入经典TERCOM算法作为线匹配算法,改进其相似性度量方法和匹配区的搜索策略;然后,构造一种基于几何相似性的面匹配算子,用于在地形基准图中选取实测地形模型面的最优匹配;最后,设计一种基于固定阈值的线面算子的组合策略,实现水下地形匹配定位.试验结果表明,相比基于Hu矩的地形匹配算法,本文所提线面组合算法的定位精度明显提高,且稳健性更强. |
|---|---|
| AbstractList | P229.5; 针对当前面匹配算法中采用Hu矩描述海底地形特征时存在细节辨识能力差而导致定位精度较低等问题,提出了一种线面组合的水下地形匹配算法.首先,引入经典TERCOM算法作为线匹配算法,改进其相似性度量方法和匹配区的搜索策略;然后,构造一种基于几何相似性的面匹配算子,用于在地形基准图中选取实测地形模型面的最优匹配;最后,设计一种基于固定阈值的线面算子的组合策略,实现水下地形匹配定位.试验结果表明,相比基于Hu矩的地形匹配算法,本文所提线面组合算法的定位精度明显提高,且稳健性更强. |
| Author | 贾帅东 刘现鹏 史岩 张立华 |
| AuthorAffiliation | 海军大连舰艇学院军事海洋与测绘系,辽宁大连,116018 |
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| Author_FL | JIA Shuaidong ZHANG Lihua SHI Yan LIU Xianpeng |
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| Keywords | 多波束测深系统 面匹配算法 地形匹配 组合匹配 |
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| Title | 一种线面组合的水下地形匹配算法 |
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