Jialin Tian, Ph.D.

WORK SUMMARY

Designed and implemented various DSP algorithms for remote sensing and electro-optical/infrared (EO/IR) applications that include radiometric calibration, spectral calibration, spectrum recovery, phase estimation/correction, focal plane array (FPA) off-axis effect correction, detector nonlinearity correction, non-uniform sampling/reconstruction, smoothing filter, FIR decimation filter, noise equivalent spectral radiance (NESR) calculation, fore/aft optical response modeling, multiple linear regression (MLR)/empirical orthogonal function (EOF) analysis, principal component (PC) noise filtering for complex radiometric calibration, FPA IR detector noise modeling, and noise reduction techniques for imaging Fourier transform spectrometers (IFTS) and Fabry-Perot interferometers (FPI).

Developed International Space Station (ISS) leak detection and localization method using an acoustic energy profile recognition technique; successfully tested the estimation method on actual sensor measurements collected on the ISS US Lab Module.

Designed and implemented DSP/communications algorithms for seismic exploration applications that include noise cancellation, compression, and surface modeling techniques for various Measurement While Drilling (MWD) systems.

Designed application programs that perform digital signal processing (DSP) and image processing algorithms such as finite-duration impulse response (FIR) filter, infinite-duration impulse response (IIR) filter, adaptive filters, filterbanks, decimation/interpolation, compression, equalization, pattern recognition, spectral estimation, enhancement, smoothing, principal component analysis (PCA), high dynamic range image reconstruction, and noise cancellation techniques. Implemented general-purpose DSP algorithms for Texas Instruments and Analog Devices embedded systems.

PROFESSIONAL EXPERIENCE

Electro-Optical Systems Engineer (Feb. 2008 — May 2018)
NASA Langley Research Center, Hampton, VA
 
• Designed International Space Station (ISS) leak detection and localization method using an acoustic energy profile recognition technique; successfully tested the estimation method on actual sensor measurements collected on the ISS US Lab Module.
• Designed the amplitude-based estimation method for ISS acoustic leak localization by using the pre-determined sensor network and constructing a prediction matrix based on the energy finite element method (EFEM).
• Developed a sensor deployment scheme using distributed sensor network techniques and evaluated the tradeoffs between the number of sensors employed and the overall sensor field coverage.
• Monitored the subcontracting tasks of acoustic noise propagation analyses and prediction techniques performed by subcontractors.
• Developed a complex radiometric calibration system for NAST-I (The National Polar-orbiting Operational Environmental Satellite System (NPOESS) Airborne Sounding Testbed-Interferometer) atmospheric measurements.
• Designed and tested a principal component noise filtering algorithm to improve the NAST-I radiometric calibration noise performance.
• Performed radiometric and spectral calibrations for the Geostationary Imaging Fourier Transform Spectrometer (GIFTS) Engineering Demonstration Unit (EDU) Atmospheric Variation Event (AVE) measurements using principal component analysis.
• Derived the four-dimensional distribution of Earth atmospheric temperature and moisture profiles based on the calibrated GIFTS radiances.
• Developed a technique for mapping the Moon’s surface radiance distribution and emissivity spectra using GIFTS EDU Moon Tracking Event measurements.
• Conducted research study in high dynamic range image processing and reconstruction methods for the GEO-CAPE (GEOstationary Coastal and Air Pollution Events) mission.

Lead Research Scientist (December 2007 — February 2008)
Senior Research Scientist (December 2006 — December 2007)
Science Systems & Applications, Inc. (SSAI)/NASA Langley Research Center, Hampton, VA
 
• Designed and implemented the 2-D moving cross-correlation and windowed moving cross-correlation methods for evaluating the Autonomous Landing Hazard Avoidance Technology (ALHAT) 3-D imaging lidar sensors.
• Designed and implemented the empirical orthogonal function (EOF) calibration model between GIFTS SM EDU (Sensor Module Engineering Demonstration Unit) and AERI (Atmospheric Emitted Radiance Interferometer) radiance spectra by performing eigen-analysis/multiple linear regression calculations on GIFTS FPAs (focal plane arrays; 16,384 pixels) and AERI pixel data.
• Developed and implemented Level 1 calibration algorithms for GIFTS.
• Developed the measurement concept for a leak detection and source localization system of ISS NODE module in a structure-borne acoustic environment under various noise conditions.

Senior Research Scientist (September 2006 — November 2006)
Research Scientist (August 2004 — August 2006)
Science Applications International Corporation (SAIC)/NASA Langley Research Center, Hampton, VA
 
• Performed radiometric and spectral calibrations for the GIFTS SM EDU GBM (Ground Based Measurement) data.
• Performed analyses on GIFTS test data collected during test options I, II, and calibration phases.
• Designed and implemented phase correction, detector nonlinearity correction, off-axis effects correction, decimation filtering/downsampling algorithms for the GIFTS data.
• Developed an electro-optical (EO) response model for the GIFTS fore-/aft- optics.
• Developed radiometric and spectral calibration models for the GIFTS instrument.
• Characterized the GIFTS IR FPA sensor system statistically, and derived a noise performance model for the detectors.
• Developed an algorithm for recovering overlapped spectral harmonic components in multiplex Fabry-Perot interferometer (MFPI) based on the multi-resolution properties of the MFPI spectrum.
• Designed and coded application programs to create and retrieve HDF5 (Hierarchical Data Format) files for FIRST (Far-Infrared Spectroscopy of the Troposphere) and GIFTS data using Visual C++ and C.
• Designed a graphic user interface (GUI) for the NAST-I calibration application program.

Graduate Research Assistant (October 2000 — May 2004)
Georgia Institute of Technology, Atlanta, GA
(Center for Signal & Image Processing)
 
• Implemented embedded DSP algorithms (FIR filter, IIR filter, filterbanks, and FIR equalizer, etc.) on Texas Instruments DSK board based on TMS320C62xx/C67xx/C54xx DSP core architectures.
• Developed lab projects, instructions, and exam questions.
• Provided lab technical supports for on-line DSP courses.
• Designed and implemented an application to stream, sort, and match patterns for multimedia educational components using Visual Basic and Perl.

Graduate Summer Intern (May 2001 — August 2001)
Computalog Ltd., Houston, TX
 
• Designed a least mean squares (LMS) adaptive filtering algorithm to recover signal pulses in noisy environments for the mud pulse telemetry system.
• Implemented and analyzed the performance of the above algorithm; comparisons were made among several variations of the basic LMS method.
• Created a GUI program for the signal recovery algorithm in Visual C++.

Product Engineer (January 1998 — August 1998)
Motorola Semiconductor Products Sector, Austin, TX
(WSSG - Wireless Subscriber Systems Group)
 
• Developed A/D, D/A, codec, TX, RX, AFC, and AOC test programs for Groupe Spécial Mobile (GSM) SC/MC390238 SMoC (Speech Coder, Modem and Codec) IC using C and HPVEE on a HP82K mixed-signal IC tester.
• Generated test patterns for SC/MC390238/236/237 Ustore, ROM, RAM, GMSK, and DPLL blocks on HP82K/Teradyne 58x mixed-signal IC testers.
• Developed routines for Teradyne 58x tester to detect physical locations of a failing cycle inside SC/MC390238 ICs.
• Performed statistical analyses on weekly test results.

Design Engineer (temporary position) (May 1997 — August 1997)
INNOVA Electronics, Inc., Houston, TX
 
• Developed a 3-D surface model, composed of temperature, pressure, and voltage parameters, for MWD (Measurement While Drilling) sensors that are used for measuring downhole annulus and bore pressures.
• Implemented embedded 68HC11 code based on the above algorithm using C; experimentally verified the method and obtained a worst-case error rate of 0.1%.
• Modified the PWD (pressure sensor) circuit design and developed a detailed testing procedure.
• Designed, built and tested a heater for a two-axis magnetometer.

Software Engineer (temporary position) (May 1996 — August, 1996)
Baker Hughes INTEQ, Houston, TX
 
• Developed a data compression algorithm for the MPR (Multiple Propagation Resistivity) microprocessor board, which improved measurement accuracy and speed.
• Implemented the data compression embedded code on MC68332 chip using C and Assembly.
• Modified the MPR system embedded code in AD2001 DSP processor and 68HC11 for downhole tools.

EDUCATION

Ph.D. in Electrical Engineering
Georgia Institute of Technology, Atlanta, GA (May 2004)

M.S. in Electrical Engineering
Purdue University, West Lafayette, IN (August 1999)

B.S. in Electrical Engineering (Magna Cum Laude)
North Carolina State University, Raleigh, NC (December 1997)

COMPUTING PROFICIENCY

• Languages: C, C++, Visual C++, Visual Basic, Perl, HTML, CSS, PHP, MySQL, Java, Javascript, Fortran, Assembly (68K), and Pascal.
• Operating Systems: PC/MSDOS, UNIX (HP-UNIX, SunOS, FreeBSD), MS Windows, and Linux (Fedora).
• Design Tools: Accel (schematic and layout), Agilent ADS, Viewlogic, Matlab, Maple, SPICE, NI LabView, NI LabWindows CVI, HPVEE, TI Code Composer Studio, Analog Devices Visual DSP++, Eclipse 3.1, LATEX, HDF5 (Hierarchical Data Format), and Comet Acoustic EnFlow Energy Finite Element Method (EFEM) analysis tool.
• Graphic Tools: Adobe Photoshop, InDesign, Illustrator, and Flash, Sony Vegas Movie Studio.

SELECTED PUBLICATIONS


• J.Tian and W. L. Smith, "Principal component noise filtering for NAST-I radiometric calibration," Proc. SPIE Europe Remote Sensing, Sept. 2011.
 
• J. Tian and E. I. Madaras, "An Amplitude-Based Estimation Method for International Space Station (ISS) Leak Detection and Localization Using Acoustic Sensor Networks," NASA Technical Memorandum (TM-2009-215948), Nov. 2009.
 
• J. Tian, W. L. Smith, and M. J. Gazarik, "Radiometric and Spectral Calibrations of the Geostationary Imaging Fourier Transform Spectrometer (GIFTS) using Principle Component Analysis," Proc. SPIE Europe Remote Sensing, Sept. 2008.
 
• J. Tian, W. L. Smith, and M. J. Gazarik, "Geostationary Imaging Fourier Transform Spectrometer Ground Based Measurement (GIFTS GBM) PCA Calibrations and Lunar Emissivity Estimation," Proc. SPIE Asia-Pacific Remote Sensing, Nov. 2008.
 
• W. Smith, H. Revercomb, H. Woolf, H. Huang, A. Larar, D. Zhou, S. Kireev, J. Tian, and X. Liu, "Ultra-spectral Remote Sounding — Background and Future," Proc. SPIE Asia-Pacific Remote Sensing, Nov. 2008.
 
• J. Tian, M. J. Gazarik, R. A. Reisse, and D. G. Johnson, "GIFTS SM EDU Level 1B Algorithms," Proc. SPIE Europe Remote Sensing, Sept. 2007.
 
• J. Tian, R. A. Reisse, and M. J. Gazarik, "Digital Signal Processing Techniques for the GIFTS SM EDU," Proc. Advanced Maui Optical and Space Surveillance Technologies Conference, Sept. 2007.
 
• J. Tian, D. G. Johnson, R. A. Reisse, and M. J. Gazarik, "GIFTS SM EDU Data Processing and Algorithms," Proc. IEEE International Geoscience and Remote Sensing Symposium, Jul. 2007.
 
• J. Tian, R. A. Reisse, D. G. Johnson, and M. J. Gazarik, "GIFTS SM EDU Radiometric and Spectral Calibrations," Proc. 32nd International Symposium on Remote Sensing of Environment, Jun. 2007.
 
• J. Tian and W. B. Cook, "Recovery of overlapped spectral harmonics in multiplex Fabry-Perot interferometry," Optical Engineering, vol. 45, No. 8, August 2006.
 
• J. Tian and M. H. Hayes III, "Reconstruction of irregularly sampled interferograms in imaging Fourier transform spectrometry with unknown sampling locations," Optical Engineering, vol. 44, No. 4, April 2005.
 
• J. Tian, "Reconstruction of irregularly sampled interferograms in imaging Fourier transform spectrometry," PhD Thesis, Georgia Institute of Technology, Atlanta, GA, 2004.
 
• L. Harvel, M. H. Hayes, Y. Lim, J. Tian, and S. Lee, "Indexing an Archive of Streaming Media Educational Components," Proceedings of ASEE 2002 Annual Conference and Exposition, June 16-19, 2002, Montreal, Quebec, Canada.

INTERESTS


• Playing the piano, mainly classical works
• Surrealistic, still-life, and landscape paintings in oil and acrylic
• Travel photography (photo gallery: www.jialintian.com)
• Still-life and food photography
• Webpage design and layout (www.macaronmagic.com)
• Book graphic design and layout
• Cookbook author and publisher (Choux Temptations(2013), Macaron Magic (2011), Macaron Magic 2: Individual Desserts and Showpieces (2012), and The Bear and Fish Family Cookbook (2009))
• Cooking and pastry art
• Certified Specialist of Wine (CSW) and Certified Specialist of Spirits (CSS)