公开(公告)号：US20240427043A1

公开(公告)日：2024-12-26

申请号：US18762513

申请日：2024-07-02

Applicant: Chengdu University of Technology

Inventor： Yuyong YANG ,  Li YOU ,  Chuan LUO ,  Zhengyang WANG ,  Huailai ZHOU

IPC: G01V1/30

Abstract: A geological structure characterization method based on a seismic velocity signal and a seismic acceleration signal is provided. The seismic acceleration signal and the seismic velocity signal are acquired and normalized. Constant-phase wavelet and minimum-phase wavelet extraction or mixed-phase wavelet extraction is performed. In the constant-phase wavelet and minimum-phase wavelet extraction, a first minimum-phase wavelet is extracted based on the seismic velocity signal, and a constant-phase wavelet is extracted based on the seismic acceleration signal, and converted to a second minimum-phase wavelet. A residual between the first minimum-phase wavelet and the second minimum-phase wavelet is calculated. If the residual is greater than a preset threshold, the constant-phase wavelet extraction is performed again, otherwise, the first minimum-phase wavelet and the constant-phase wavelet are output.