Accession Number:

ADA101307

Title:

E-O Sensor Signal Recognition Simulation: Computer Code SPOT I.

Descriptive Note:

Final rept. 14 Mar-30 Sep 78,

Corporate Author:

RADIATION RESEARCH ASSOCIATES INC FORT WORTH TX

Personal Author(s):

Report Date:

1978-10-01

Pagination or Media Count:

118.0

Abstract:

This report describes a preliminary version of an engineering-type predictive users code developed to simulate the radiative energy signal reaching an electro-optical sensor operating within the atmosphere. The computer code, designated SPOT, allows for the definition of a point monodirectional receiver located within a plane parallel atmosphere. Sunlight, moonlight, and the thermal radiation emitted by the atmosphere and the ground surface characterize the natural radiative environment. In addition, SPOT allows for the definition of a plane reflectiveemissive target arbitrarily oriented at a specified distance from the sensor along the sensors line of-sight. Primary components of the radiative environment are treated in this version of the code. In particular, this includes direct sunlight or moonlight, controlled atmospheric emission, and uncollided target or ground emission. Data bases for the extraterrestrial spectral irradiance, along with the compilation of various aerosol phase matrices are used in order to provide adequate computational details. In addition, the LOWTRAN 4 atmospheric transmittanceradiance code is utilized as an integral part of the program. Various computational options provide the user with a sufficient degree of flexibility in order to perform spectral analyses of sensors operating within a variety of atmospheric conditions. Author

Subject Categories:

  • Computer Programming and Software
  • Optical Detection and Detectors
  • Infrared Detection and Detectors
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE