Statistics – Applications
Scientific paper
Oct 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1305..153n&link_type=abstract
IN: Signal and data processing of small targets 1990; Proceedings of the Meeting, Orlando, FL, Apr. 16-18, 1990 (A91-36901 15-32
Statistics
Applications
Point Sources, Spectral Bands, Target Recognition, Temperature Sensors, Black Body Radiation, Image Processing, Scene Analysis, Spatial Resolution
Scientific paper
Limits are established here on the accuracy of temperature estimation of two closely spaced point targets having different temperatures, when such targets are observed in several spectral bands. The effect of a priori knowledge on temperature estimation is discussed. An analytical framework is developed to establish the fundamental limits on temperature resolution of a passive system and to obtain a quantitative understanding of the dependence of estimation accuracy on parameters describing the targets, and on the number of photons available. The sensitivity of temperature estimation to target parameters and the selection of the number and location of the spectral bands in which the measurements are made is examined. The advantage of partial resolution of targets in one or more spectral bands is studied. The results provide a more comprehensive definition of temperature resolution and can be useful in astronomy, multispectral scene analysis, and other commercial and military applications.
Kalisz Andy
Nowakowski Jerzy
Wlodawski Mitchell
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