| 基于Haar小波的地形匹配技术 |
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| 引用本文： | 王广君,王巍,汪文,尤克非,田金文,柳健.基于Haar小波的地形匹配技术[J].电波科学学报,2002,17(3):240-244. |
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| 作者姓名： | 王广君 王巍 汪文 尤克非 田金文 柳健 |
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| 作者单位： | 1. 中国地质大学信息工程学院,湖北,武汉,430074
2. 华中科技大学图象信息处理与智能控制教育部重点实验室,湖北,武汉,430074 |
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| 基金项目： | 国防科技预研基金资助项目 (99J1.4 .4 .JW0 5 0 9) |
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| 摘 要： | 在传统相关地形匹配的基础上，提出了一种基于Haar小波的多尺度地形匹配方法。这种方法用Haar小波对地形作多尺度分解，然后，利用分解后的HL和LH分量分别进行相关匹配，对匹配后的结果用Dempster-Shafer证据理论进行融合，得到正确匹配结果。由于Haar小波分解后减少了数据量，保留了原始地形的主要几何特征，所以，它的计算速度和匹配精度都优于传统的匹配方法。
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| 关 键 词： | Haar小波 地形匹配技术 计算速度 匹配精度 飞行器 制导 导航 |
| 文章编号： | 1005-0388(2002)03-0240-05 |
The terrain matching technology based on the Haar wavelet |
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| WANG Guang jun,WANG Wei,WANG Wen,YOU Ke fei,TIAN Jin wen,LIU Jian.The terrain matching technology based on the Haar wavelet[J].Chinese Journal of Radio Science,2002,17(3):240-244. |
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| Authors: | WANG Guang jun WANG Wei WANG Wen YOU Ke fei TIAN Jin wen LIU Jian |
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| Affiliation: | WANG Guang jun 1 WANG Wei 1 WANG Wen 1 YOU Ke fei 2 TIAN Jin wen 2 LIU Jian 2 |
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| Abstract: | On the basis of conventional TRECOM technology, a new TRECOM approach has been developed based on the Haar wavelet. The approach is as follows: firstly the terrain is decomposed by the multiresolution Haar wavelet. Secondly the correlation matching results are calculated by the decomposed results of HL and LH part, respectively. Thirdly, the matching result is fused by the algorithm of Dempster Shafer. Because the terrain is decomposed by the multiresolution Haar wavelet, the data is reduced, and the main geometry character of original terrain is preserved. Our method in calculation speed and matching precision is better than the conventional method. |
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| Keywords: | wavelet terrain contour matching(TRECOM) correlation calculation speed matching precision |
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