| 一种回波信号的检测识别方法 |
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| 引用本文： | 黄凤岗 景志宏. 一种回波信号的检测识别方法[J]. 中国造船, 1999, 0(4): 78-81 |
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| 作者姓名： | 黄凤岗 景志宏 |
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| 作者单位： | 哈尔滨工程大学(黄凤岗，荆东)，西北工业大学(景志宏) |
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| 摘 要： | 本文研究了一种基于回波的目标自动识别方法。该方法首先通过粗取和精取两个步骤将目标回波信号检测提取出来，然后利用回波的Ｆｏｕｒｉｅｒ－Ｍｅｌｌｉｎ变换，提取具有位移及尺度双重不变的目标特征。最后的实验结果表明，该方法具有一定的优越性和较好的分类效果。
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| 关 键 词： | 声纳回波 信号检测 信号识别 |
A METHOD OF ECHO DETECTION AND RECOGNITION |
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| HUANG Fenggang, JING Dong, JING Zhihong. A METHOD OF ECHO DETECTION AND RECOGNITION[J]. Shipbuilding of China, 1999, 0(4): 78-81 |
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| Authors: | HUANG Fenggang JING Dong JING Zhihong |
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| Affiliation: | HUANG Fenggang; JING Dong; JING Zhihong (Harbin Engineering University) (Northwestern Polytechnical University) |
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| Abstract: | This paper proposes a method of echo detection and recognition. In this method, features of echo targets are extracted from the results of the Fourier--Mellin Transform of echo signals. Because of the scale invariance of the Mellin Transform and the translation invariance of the Fourier Transform, the features extracted by this method are insensitive to the aspect angle of the target and the measurement delay. The results of experiment show that using this method to extract feature from echo signal is effective in calssifying two different types of targets. |
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| Keywords: | Sonar echo Signal detection Signal recognition |
| 本文献已被 CNKI 维普 等数据库收录！ |
