30 May 2022Empirical model for creating longwave and midwave infrared radiometric and spatial characteristics of clouds for target detection considerations
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.
Clouds can increase the signal of the background and create non-uniformity behind an airborne target which results in low and varying contrast. Clear sky conditions provide a low noise, uniform background that gives a better chance of detection. In comparison, clouds in the immediate vicinity of a target can decrease the signal to noise ratio (SNR). Understanding key variables of this non-uniform structure can allow for better detection of small UAVs. The presented radiometric and spatial characteristics for both the midwave and longwave bands are the maximum and minimum blackbody equivalent temperature and the distributions of the cloud temperatures. The spatial metrics of measurements are a one-dimensional power spectrum to understand the random spatial structure of the clouds. These cloud properties are measured at night to avoid any solar contributions and obtain their emissive characteristics. An Empirical Model is created to predict cloud radiances in any atmosphere.
Patrick Leslie,Robert Grimming,Sarina Grijalva,Steven Butrimas, andRonald Driggers
"Empirical model for creating longwave and midwave infrared radiometric and spatial characteristics of clouds for target detection considerations", Proc. SPIE 12106, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII, 121060D (30 May 2022); https://doi.org/10.1117/12.2618724
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.
The alert did not successfully save. Please try again later.
Patrick Leslie, Robert Grimming, Sarina Grijalva, Steven Butrimas, Ronald Driggers, "Empirical model for creating longwave and midwave infrared radiometric and spatial characteristics of clouds for target detection considerations," Proc. SPIE 12106, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXIII, 121060D (30 May 2022); https://doi.org/10.1117/12.2618724