<title>Microcomputer-based workstation for simulation and analysis of background and target IR signatures</title>

Abstract

Existing software packages for target/background signature analysis generate radiometrically accurate results, but may be difficult to use because of the complexity involved in coordinating model inputs and in 'mating' intermediate model outputs into a final result In addition, tools used to display and analyze model results are not always available on the model's host computer. Horizons Technology, Incorporated UITI) has undertaken the development of integrated workstations for the analysis of earth background and target signatures in the visible and infrared wavelengths. The first of these products, available now, is the Infrared Atmospherics and Signatures Predic1on Model (JASPM). IASPM is hosted on 80386 and 80486 PC/AT desktop computers, and incorporates three widely used electro-optical simulation codes: LOWTRAN (atmospheric propagation), SPIRITS (target signature) and EOSSIM (sensor performance). Also included are image display and analysis utilities. IASPM is controlled by an interacthre menu-driven graphical user interface which assists the analyst in selecting, comparing, and then analyzing meaningful target/background image scenarios. In addition, IASPM can also be used to display, analyze, and extend measured imageiy into new and unmeasured cases.

Model for infrared sensor performance evaluation: applications and results

“…Comparison and analysis of the experimental data with the simulations is discussed in Sec. 4. This latter section describes what the sensor system viewed and what the simulation showed.…”