摘要
介绍了一种相对较新的联合时频分析方法——S-变换法,并利用S-变换对水中目标信号的相位特征和局部谱进行提取。列举了一些联合时频分析的应用例子,证明了此法对水中目标特征提取的有效性。
A comparatively new method of joint time-frequency analysis is introduced in this paper. Using the S-transform, the local spectral characteristics and phase features of the underwater targets are extracted. Some application examples are presented and this method is proved effective.
出处
《电声技术》
2007年第1期10-12,共3页
Audio Engineering
