Target Feature Eztraction for Passive Sonar Based on Two Cepstrums
A passive sonar target can be regarded as a sounder from the viewpoint of sonar operators. The impulse response of the sounder in the cepstrum domain, which shows physical features of targets, can be obtained from the radiated-noise of targets using LPC cepstrum and Mel cepstrum. A set of cepstrum-domain features is extracted based on the above two cepstrums of the impulse response. The neural network target classifier was designed using cepstrum-domain features. The classification experiments were carried out for three different kinds of targets based on practical data. The experimental results show that the feature extraction method based on two cepstrums are useful.
sonar operator target recognition LPC cepstrum Mel cepstrum feature eztraction
Geming Liu Chao Sun Yixin Yang
Engineering Acoustics Institute Northwestern Polytechnical University Xian, China
国际会议
上海
英文
539-542
2008-05-16(万方平台首次上网日期,不代表论文的发表时间)