Infrared Target Detection: Signal and Noise Sensitivity Analysis
Abstract
The purpose of this thesis was to determine the effect of the statistical properties of the signal and the noise on an infrared system's detection performance. Noise sources identified and characterized include Johnson noise, shot noise, generation-recombination noise, and photon noise. The signal was characterized as either constant or fluctuating. A computer model was used to evaluate system detection performance for various combinations of signal type and noise distribution. Results were presented in terms of probability of detection versus signal to noise ratio. Analysis of the results suggest that an IR system's detection performance cannot be measured in terms of signal to noise ratio alone. The system designer needs to take into account the statistical properties of the signal and the noise to accurately predict system performance with an IR detection model. Keywords: Atmosphere detection models. (kr)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1989
- Accession Number
- ADA215707
Entities
People
- Christopher W. Keefer
Organizations
- Air Force Institute of Technology