南方科技大学知识苑(SUSTech KC): 一种自动提取背景噪声频散曲线的方法及装置

Title	一种自动提取背景噪声频散曲线的方法及装置
Alternative Title	Method and device for automatically extracting background noise frequency dispersion curve
Author	宋卫宾; 陈晓非; 冯旭平
First Inventor	宋卫宾
Original applicant	南方科技大学
First applicant	南方科技大学
Address of First applicant	518055 广东省深圳市南山区学苑大道1088号南方科技大学
Current applicant	南方科技大学
Address of Current applicant	518055 广东省深圳市南山区学苑大道1088号南方科技大学 (广东,深圳,南山区)
First Current Applicant	南方科技大学
Address of First Current Applicant	518055 广东省深圳市南山区学苑大道1088号南方科技大学 (广东,深圳,南山区)
Application Number	CN202110173564.5
Application Date	2021-02-09
Open (Notice) Number	CN112861721A
Date Available	2021-05-28
Status of Patent	实质审查
Legal Date	2021-06-15
Subtype	发明申请
SUSTech Authorship	First
Abstract	本发明公开了一种自动提取背景噪声频散曲线的方法及装置，所述方法包括：获取地震台站记录的背景噪声数据，并对背景噪声数据进行预处理、互相关、叠加得到经验格林函数，再对经验格林函数进行矢量波数域变换得到频散谱；根据所述频散谱和Res‑Unet++网络模型，得到候选频散区域；根据梯度法和追逐法对所述候选频散区域的频散点进行提取和分类，得到目标频散曲线。本发明实施例能实现频散曲线的自动化提取，并且能够提取到极值法提取较差的高阶频散曲线，节省了研究人员的大量时间，提高了他们的工作效率。
Other Abstract	The invention discloses a method and device for automatically extracting a background noise frequency dispersion curve, and the method comprises: obtaining background noise data recorded by a seismic station, carrying out the preprocessing, cross-correlation and superposition of the background noise data, obtaining an empirical green function, carrying out the vector wave number domain transformation of the empirical green function, and obtaining a frequency dispersion spectrum; according to the frequency dispersion spectrum and a Res-Unet++ network model, obtaining a candidate frequency dispersion area; and according to a gradient method and a chasing method, extracting and classifying frequency dispersion points of the candidate frequency dispersion area, and obtaining a target frequency dispersion curve. According to the embodiment of the invention, the automatic extraction of the frequency dispersion curve can be realized, the high-order frequency dispersion curve which is poorer in extraction by the extreme value method can be extracted, a lot of time of researchers is saved, and the working efficiency of the researchers is improved.
CPC Classification Number	G06N3/08 ; G06F2218/02 ; G06F2218/08 ; G06F2218/12
IPC Classification Number	G06K9/00 ; G06N3/08
INPADOC Legal Status	（ENTRY INTO FORCE OF REQUEST FOR SUBSTANTIVE EXAMINATION）[2021-06-15][CN]
INPADOC Patent Family Count	1
Extended Patent Family Count	1
Priority date	2021-02-09
Patent Agent	徐凯凯
Agency	深圳市君胜知识产权代理事务所(普通合伙)
URL	[Source Record]
Data Source	PatSnap
Document Type	Patent
Identifier	http://kc.sustech.edu.cn/handle/2SGJ60CL/533215
Department	Department of Earth and Space Sciences
Recommended Citation GB/T 7714	宋卫宾,陈晓非,冯旭平. 一种自动提取背景噪声频散曲线的方法及装置.

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