|Resume of Dr. Jay J. Pulli
Fairfax, VA, USA
1983: PhD in Geophysics, Massachusetts Institute of Technology, Cambridge, MA
1975: BS in Physics, Worcester Polytechnic Institute, Worcester, MA
1997-Present: Division Scientist, BBN Technologies, Arlington, VA. A member of the Sensor Systems & Technologies Department, conducts research in sesimology and acoustics including...
- Research on long-range hydroacoustic reflections recorded for underwater explosions and how they could be utilized to enhance the hydroacoustic component of CTBT monitoring..
- Research on the passive seismic and acoustic identification of underground facilities.
- Served on the Panel of Geophysical Experts for the IAEA/NRC study of geophysical techniques for safeguarding geological repositories.
- Research and field testing of the use of imploding glass spheres as deep-water acoustical sources for CTBT hydroacoustic calibration.
- Research and field experiments on the seismic detection and classification of shallow unexploded ordnance (UXO).
- Modeling of acoustic echos and the analysis of echos using LPC coefficients.
1994-Present: Partner, Elohi Geophysics, Inc., Houston, TX. EGI designs, builds, sells & leases swept frequency seismic sources for shallow surface and borehole seismic surveys. These sources have been used for surveys at a variety of sites including DOE's Hanford Reservation, Oak Ridge National Laboratory, and Dover Air Force Base.
1987-1997: Principal Scientist, Radix Systems, Inc., Rockville, MD. Conducted numerous R&D projects in the areas of seismology and acoustics including...
- Conducted projects in the area of Comprehensive Test Ban Treaty R&D, including the development of seismic discriminants, the training of artificial neural networks, and the image processing of time-frequency representations of seismic data.
- Analyzed acoustic and seismic data from unattended ground sensors (UGS) for the purpose of vehicle tracking and identification.
- Conducted acoustical measurements in NASA Langley's anechoic chambers and wind tunnels and developed adaptive beamformers for the cancellation of echos from the tunnel floor, walls & ceiling.
- Led an effort to analyze data from arrays of on-board accelerometers on a variety of submarine hulls. This work included the estimation of wave type (compressional shear, flexural) and wave speed on the hull for both steady-state motion and transient motion (impulsive explosion excitation). These data and models were used to produce video animations of the hull motions for interpretation.
- Principal Investigator for a DOE SBIR project to investigate the use of so-called "chaotic waveforms" for crosswell seismic tomography. This work, conducted in conjuction with Reservoir Imaging, Inc. (now a part of Western Atlas International), compared the results of 2-D tomographic studies at the Devine Test Site near San Antonio, TX using impulsive wavelets, FM sweeps, and chaotic waveforms as inputs to the seismic source.
- Modeled the acoustical signatures of cruise missile launches used to train neural networks. Models included the launch transient, startup transient, and in-water rocket noise. The models were based on both engineering specifications of the rocket and recorded measurements of actual missile examples.
- Projector array algorithm design for the Intermediate Scale Measurement Facility, a Navy effort to develop a lake facility for the measurement of target strength using arrays of projectors to produce plane acoustic waves in the near-field. Produced a computer model to evaluate the number of projectors required to produce the plane waves as a function of frequency and distance to the target.
- Measurement and modeling of the nonlinear response of underwater acoustical projectors.
1985-1987: Research Seismologist, SAIC, Arlington, VA. Working at DARPA's Center for Seismic Studies (now the Center for Monitoring Research), conducted research for its Nuclear Monitoring Research Office in the areas of seismic discrimination, event identification, seismic array signal processing, and attenuation. Developed software for seismic signal analysis, and interacted with international scientists on it's use.
Summer 1979: Research Associate, Gulf Science & Technology Co., Harmarville, PA. Conducted research in the use of shear waves for seismic reflection, focusing on attenuation estimation and the analysis of field data from San Miguel, TX.
1977-1985: Massachusetts Institute of Technology, Cambridge, MA. As Group Leader for the Seismic Safety Group, conducted and managed research in network seismology, seismic risk, ground motion estimation, attenuation, and signal processing. He also conducted numerous field experiments to measure crustal structure and earthquake aftershocks. He was also an advisor to the Massachusetts Civil Defense Agency on seismic risk estimation.
1975-1977: Research Assistant, Weston Observatory of Boston College, Weston, MA. As a graduate research assistant, conducted research in network seismology, earthquake locations, and field seismic studies using local quarry blasts as seismic sources for refraction experiments.