Title: Wavelet transform and seismic signal analysis
Abstract:The instantaneous parameters of seismic wave, such as instantaneous amplitude, instantaneous frequency, and instantaneous phase, are of very important role in studying properties of the earth. Based o...The instantaneous parameters of seismic wave, such as instantaneous amplitude, instantaneous frequency, and instantaneous phase, are of very important role in studying properties of the earth. Based on the definition of wavelet, the authors revised the Morlet wavelet and discussed the characteristics of revised wavelet in detailed. Theoretically analysis shows that the effect of wavelet transforms is restricted by the parameters such as shape, length of wavelet, central frequency, bandwidth, as well as the number of wavelets, especially the relationship among shape, central frequency, and bandwidth play a key role in wavelet transform. In the actual treatment of seismic records, we can choose proper parameter of shape. At mean time, we need give correct central frequency of wavelet to avoid omitting and redundancy of original message during wavelet transform. At the end of the article, the field record is demonstrated as result of wavelet transform according to the concept of instantaneous amplitude and instantaneous phase.Read More
Publication Year: 2002
Publication Date: 2002-01-01
Language: en
Type: article
Access and Citation
Cited By Count: 3
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot