Passive determination of temperature and range using spectral band measurements of photon emittance
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Authors
Hirakawa, Shinji
Subjects
Passive ranging
Temperature determination
Photon emittance
Spectral band measurements
Temperature determination
Photon emittance
Spectral band measurements
Advisors
Pieper, Ronald J.
Date of Issue
1991-09
Date
September 1991
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The established concept of temperature determination from dual spectra band radiometric measurement is analyzed for the case that the measurement device is sensitive to total photon emittance rather than radiant emittance. A temperature dependent ratio of measurements is calculated for two distinct spectral bands using a black body distribution. it is shown that, if the bands are not self contained, then there exists a one-to-one correspondence between temperature and ratio. A prototype algorithm is proposed and tested which demonstrates the feasibility of extracting both the temperature and range by using three distinct spectral band measurements. The model assumes nonhomogeneous, wavelength-dependent atmospheric attenuation. The target and sensor system each have an arbitrary location in a vertical plane relative to the earth. In the computer simulations, LOWTRAN data was used.
Type
Thesis
Description
Series/Report No
Department
Electronic Warfare Academic Group
Organization
Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
80 p.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner