NDLI: Imaging Fourier Transform Spectrometry of Combustion Events

Content Provider	IEEE Xplore Digital Library
Author	Bradley, K.C. Gross, K.C. Perram, G.P.
Copyright Year	2001
Abstract	The Telops, Inc., field-portable imaging radiometric spectrometer technology-midwave extended (FIRST-MWE) was characterized both spatially and spectrally, using blackbody sources in a climate-controlled laboratory environment. Individual pixel temperature variation of less than 0.5°C was demonstrated on a 32 × 32 pixel array while imaging a 3.5 in. blackbody at 65°C. A 150°C blackbody background source was imaged at a distance of 10 m with the FIRST-MWE set to a spectral resolution of 0.25 cm^-1 and a 128 × 128 pixel window. The corresponding spectral radiance was fitted to a line-by-line radiative transfer model (LBLRTM) of the scene based on the HITRAN (high-resolution transmission) database with a high degree of precision. Following demonstration of satisfactory instrument performance in both spatial and spectral domains, hyperspectral and high-speed broadband infrared (IR) imagery of a propane torch in front of a blackbody background were obtained with the FIRST-MWE in spectral mode and camera mode, respectively. Hyperspectral algorithms were employed to differentiate plume from non-plume pixels. Future work will improve this algorithm so that, with proper thresholding, plume pixels can be extracted from the remaining data set. This approach will result in a significant level of data reduction prior to implementing more computer-intensive chemical and temperature analysis on the plume hyperspectral datacube. Finally, exhaust from a diesel-fueled Turbine Technologies, Ltd. SR-30 turbojet engine was imaged with the FIRST-MWE from a side-plume vantage point during steady-state operation in both spectral and camera mode.
Sponsorship	IEEE Sensors Council
Starting Page	779
Ending Page	785
Page Count	7
File Size	4539605
File Format	PDF
ISSN	1530437X
Volume Number	10
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-03-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fourier transforms Spectroscopy Combustion Hyperspectral imaging Pixel Temperature Chemical analysis Radiometry Image resolution Layout remote sensing Aircraft propulsion imaging Fourier-transform spectroscopy infrared imaging
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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