Accession Number : ADA292176

Title :   Broadband Integrated Transmittances(BITS).

Descriptive Note : Final rept.,

Corporate Author : SCIENCE AND TECHNOLOGY CORP HAMPTON VA

Personal Author(s) : Davis, Roger E. ; Berrick, Stephen W.

PDF Url : ADA292176

Report Date : FEB 1995

Pagination or Media Count : 141

Abstract : Broadband Integrated Transmittances (BITS) is an EOSAEL module that calculates transmittance for systems with broad spectral response. Path-integrated concentration data from COMBIC, other EOSAEL modules, or user models are used as input for BITS. The primary function of BITS is to provide rigorous transmittance calculations for broadband systems, replacing the Beer-Lambert law used in most obscuration models. To use BITS, the system detector, filters, optics, and source spectral functions must be defined. The spectral transmittances of the atmosphere and mass extinction coefficient spectral data for the obscurant are also required. The output consists of transmittance as a function of concentration length for Beer's law and band-integrated computation methods. The theory of the model, a description of the module organization, and an operations guide that provides input and output in EOSAEL format are provided in this user's guide. Example uses for BITS are also included.

Descriptors :   *RADIATIVE TRANSFER, *TRANSMITTANCE, *ELECTROMAGNETIC RADIATION, *BROADBAND, USER MANUALS, OPTICS, INTEGRATED SYSTEMS, COMPUTATIONS, DETECTORS, MODELS, BATTLEFIELDS, THEORY, SPECTRA, RESPONSE, USER NEEDS, TABLES(DATA), OBSCURATION.

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE