摘要
提出了基于 Morlet小波的一种新的高分辨率信号频谱估计方法 .理论和仿真结果都证明 ,在短数据信号情况下 ,这种谱估计方法其频率分辨率和估计精度都要高于 FF T方法 .文中讨论了基于 Morlet小波的谱估计算法 。
In this paper, a new signal's spectrum estimation method based on Morlet wavelet is given. It's proved by theory and emulation that this spectrum estimation method has a better frequency resolution and a higher estimation accuracy than that of FFT under the condition of short data signal. It's also discussed the algorithm of spectrum estimating based on Morlet wavelet, the dual sine emulative result is given at last.
出处
《武汉理工大学学报（交通科学与工程版）》
北大核心
2002年第5期622-624,635,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
