渐近信号瞬态频率的提取

Extraction of Instantaneous Frequencies of an Asymptotic Signal

由渐近信号的小波分析出发，研究了渐近信号小波变换的渐近估计方法。着重讨论了渐近信号在小波变换下的特征，构造了信号瞬态频率提取的实现算法。最后结合仿真数值，得到了较好的结果。

Beginning with wavelet analysis of the asymptotic signal,this paper deals with the asymptotic estimation method of asymptotic signal under wavelet transform.It lays emphasis on features of asymptotic signal under wavelet transform,there follows the realization of the algorithm for extracting instantaneous frequencies. In the end satisfied results are obtained through numerical experiments.