| 基于频域典型相关分析的水下目标回波识别 |
| |
| 引用本文： | 陈拓,蔡惠智,吴永清,吕曜辉.基于频域典型相关分析的水下目标回波识别[J].海洋技术,2012,31(1):14-17,30. |
| |
| 作者姓名： | 陈拓 蔡惠智 吴永清 吕曜辉 |
| |
| 作者单位： | 1. 中国科学院声学研究所,北京,100190
2. 北京中科海讯数字信号处理技术有限公司,北京,100095 |
| |
| 基金项目： | “十一五”预研基金(4010501050104)资助项目 |
| |
| 摘 要： | 水下目标回波的特征提取与分类识别是当前主动声纳关键技术之一。采用基于回波频域特性的典型相关分析算法(CCA:Canonical Correlation Analysis)提取回波的特征,这些特征集中体现了不同目标回波的综合相关特性。设计合适的支持向量机分类器,并获得识别结果。利用这一方法对湖试中的不同目标回波进行分类识别,分析了不同接收信噪比条件下的性能,获得了理想的结果。
|
| 关 键 词： | 特征提取 典型相关分析 支持向量机 |
Echo Identification of Underwater Target Based on Frequency Domain Canonical Correlation Analysis |
| |
| CHEN Tuo
,
CAI Hui-zhi
,
WU Yong-qing
,
LV Yao-hui.Echo Identification of Underwater Target Based on Frequency Domain Canonical Correlation Analysis[J].Ocean Technology,2012,31(1):14-17,30. |
| |
| Authors: | CHEN Tuo CAI Hui-zhi WU Yong-qing LV Yao-hui |
| |
| Institution: | 1(1.Institute of Acoustics,Chinese Academy of Sciences,Beijing 100190,China; 2.Beijing Zhong Ke Hai Xun Digital Signal Processing Co Ltd,Beijing 100095,China) |
| |
| Abstract: | Feature extraction and classification for underwater target echoes is one of key technologies for active sonar.Efficient features will be extracted using frequency-based canonical correlation analysis,which represent the comprehensive correlation characteristics between echoes from different targets.Support vector machine is used as a classifier to get final results.The proposed method is used for classification of different underwater targets in the lake and verified to be efficient according to numerical analysis results. |
| |
| Keywords: | feature extraction canonical correlation analysis support vector machine |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
