HR: 1330h
AN: NS23B-03    [Abstracts]
TI: Development of a Seismic Physical Modeling System for Surface Wave Experiment
AU: * Lin, Q
EM: qlin@ncat.edu
AF: NC A&T State University, 1020 E Wendover Ave, Greensboro, NC 27411 United States
AU: Tang, G
EM: gtang@ncat.edu
AF: NC A&T State University, 1020 E Wendover Ave, Greensboro, NC 27411 United States
AU: Burbach, G
EM: van@pyramidenvironmental.com
AF: Pyramid Environmental and Engineering, INC., 700 N. Eugene St, Greensboro, NC 27401 United States
AU: Jackson, C
EM: cjackson@ncat.edu
AF: NC A&T State University, 1020 E Wendover Ave, Greensboro, NC 27411 United States
AU: Wang, G
EM: gwang@ncat.edu
AF: NC A&T State University, 1020 E Wendover Ave, Greensboro, NC 27411 United States
AB: Imaging the near-surface objects in environment studies or even in globe seismology, surface waves play a curious role in seismic methods. For fundamental understanding of surface wave generation and data acquisition, we developed a physical modeling system with LabVIEW (a graphic programming language) to facilitate the surface wave modeling and simulation. The hardware of the system was configured with dedicated motion control board, source excitation, data acquisition board, serial ports card, angle beam transducers and wedges. The main program of the system consists of signal generation, data acquisition and acquisition automation. It is feasible to collect surface wave data in desire arrays that can be analysis simultaneously by surface wave methods, as well as seismic reflection. The system features a flexible geometry capability, a simple user interface, and transducer position real time display. It also include some embedded data analysis functions such as vertical stack, bytes swap, first-arrival auto pick, fast Fourier transform, time-gated spectrum analysis, shot gather display, and data annotation.
DE: 0900 EXPLORATION GEOPHYSICS
DE: 1734 Seismology
DE: 6339 System design
SC: Near-Surface Geophysics [NS]
MN: 2005 Joint Assembly