CiNeRaMa model for detection range estimates

Eli T. Talmor

doi:10.1117/12.56171

1 June 1992 CiNeRaMa model for detection range estimates

Eli T. Talmor

Author Affiliations +

Optical Engineering, Vol. 31, Issue 6, (June 1992). https://doi.org/10.1117/12.56171

Abstract

The analysis of radiometric relations is a basic requirement for the performance evaluation of any detection system. The CiNeRaMa (Contrast-to-Noise Ratio Model) presents a tool for system assessment at many engagement scenarios including different targets, atmospheric properties, and electro-optical sensors. The model determines the contrast-to-noise ratio (CNR) of small targets which depends on the detailed parameters of the particular scenario and in general cannot be expressed analytically. The model uses simplified target and sensor models together with radiative transfer calculations using LOWTRAN-7 code. The model incorporates a novel background clutter definition as the function of pixel size divided by the background correlation length and predicts the effects of cognitive screening of the clutter by a human observer. The rms pixel clutter is defined using background power spectral density, sensor resolution, and sensor-to-background distance. The proposed metrics might be useful in the thresholding of background clutter in image processing. The resulting contrast ofthe target above the clutterthreshold is compared with the electronic detector noise. The radiometric results of a typical engagement scenario can be employed for sensitivity analyses of sensor design.

Citation Download Citation

Eli T. Talmor "CiNeRaMa model for detection range estimates," Optical Engineering 31(6), (1 June 1992). https://doi.org/10.1117/12.56171

Published: 1 June 1992

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available