Accession Number:

AD0905291

Title:

Performance Synthesis (Electro Optical Sensors)

Descriptive Note:

Final rept.

Corporate Author:

WESTINGHOUSE DEFENSE AND ELECTRONICS CENTER BALTIMORE MD SYSTEMS DEVELOPMENT DIV

Report Date:

1972-08-11

Pagination or Media Count:

294.0

Abstract:

This effort is a continuation of the Performance Synthesis Study Electro-Optical Sensors reported in Technical Report AFAL-TR-71-137, dated May 1971. Analytical models are developed for evaluating and predicting the performance of observers augmented by electro-optical sensors for laboratory test images such as rectangles and periodic bar patterns and for a limited number of real world objects. The models developed are improved, and modified to bring them into closer agreement with those models proposed by other investigators for the purpose of obtaining greater acceptance and making available a wider body of technical literature. In the models developed, a signal-to-noise ratio is associated with an image based on the images irradiance and spatial dimensions. Through psychophysical experimentation, the observers thresholds for discrimination of these images are determined. Methods of predicting the range capability of sensor-augmented observers are developed and applied to both range-gated active and passive low-light-level television systems. These models take into account properties of the scene, atmosphere and level of target discrimination. Also, pure image motion effects, observer effects due to motion, and sensor effects due to motion are analyzed. The general area of system specification is discussed.

Subject Categories:

  • Optical Detection and Detectors
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE