STA/LTA Fractal Dimension Algorithm of Detecting the P‐Wave Arrival

Research Article| November 28, 2017 STA/LTA Fractal Dimension Algorithm of Detecting the P‐Wave Arrival Jiangjing Zhang; Jiangjing Zhang aKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, 111 North 1st Section, Second Ring Road, Chengdu 610031, China, jianzhang1102@swjtu.edu.cn, tangyalei@my.swjtu.edu.cn, bk20110235@my.swjtu.edu.cn Search for other works by this author on: GSW Google Scholar Yalei Tang; Yalei Tang aKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, 111 North 1st Section, Second Ring Road, Chengdu 610031, China, jianzhang1102@swjtu.edu.cn, tangyalei@my.swjtu.edu.cn, bk20110235@my.swjtu.edu.cn Search for other works by this author on: GSW Google Scholar Hongjie Li Hongjie Li aKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, 111 North 1st Section, Second Ring Road, Chengdu 610031, China, jianzhang1102@swjtu.edu.cn, tangyalei@my.swjtu.edu.cn, bk20110235@my.swjtu.edu.cn Search for other works by this author on: GSW Google Scholar Author and Article Information Jiangjing Zhang aKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, 111 North 1st Section, Second Ring Road, Chengdu 610031, China, jianzhang1102@swjtu.edu.cn, tangyalei@my.swjtu.edu.cn, bk20110235@my.swjtu.edu.cn Yalei Tang aKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, 111 North 1st Section, Second Ring Road, Chengdu 610031, China, jianzhang1102@swjtu.edu.cn, tangyalei@my.swjtu.edu.cn, bk20110235@my.swjtu.edu.cn Hongjie Li aKey Laboratory of Transportation Tunnel Engineering, Ministry of Education, School of Civil Engineering, Southwest Jiaotong University, 111 North 1st Section, Second Ring Road, Chengdu 610031, China, jianzhang1102@swjtu.edu.cn, tangyalei@my.swjtu.edu.cn, bk20110235@my.swjtu.edu.cn Publisher: Seismological Society of America First Online: 28 Nov 2017 Online Issn: 1943-3573 Print Issn: 0037-1106 © Seismological Society of America Bulletin of the Seismological Society of America (2018) 108 (1): 230–237. https://doi.org/10.1785/0120170099 Article history First Online: 28 Nov 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Jiangjing Zhang, Yalei Tang, Hongjie Li; STA/LTA Fractal Dimension Algorithm of Detecting the P‐Wave Arrival. Bulletin of the Seismological Society of America 2017;; 108 (1): 230–237. doi: https://doi.org/10.1785/0120170099 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyBulletin of the Seismological Society of America Search Advanced Search Abstract Reliable and accurate detection of P‐wave arrivals is a key step for the determination of seismic parameters. In this article, an innovative, automatic algorithm for detecting the P‐wave arrival was developed based on the fractal dimension theory and the ratio of short‐term and long‐term average fractal dimension, called STA/LTA fractal dimension algorithm (STAFD/LTAFD). The proposed algorithm was verified using seismic waveforms and synthesized seismic waveforms with different levels of the signal‐to‐noise ratio (SNR), and compared with both STA/LTA algorithm and STA/LTA+AIC (Akaike information criterion) algorithm. The results from the study show that when dealing with seismic waveforms with high signal level, the STAFD/LTAFD algorithm has similar accuracy as the STA/LTA+AIC algorithm; however, for waveforms with lower SNR the STAFD/LTAFD algorithm performed better than the STA/LTA+AIC algorithm in P‐wave detection. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.