Background Temperature Effect to Range Performance of Large F-Number Uncooled Infrared Cameras
Abstract
IN this work, range performance of uncooled infrared imaging systems were estimated with the use of NvThermIP tool with background temperature consideration. We showed that uncooled IR imaging systems with small pixel pitch, high resolution FPAs could outperform those with larger pitch FPAs at lower resolution in targeting tasks. This is still valid even (1) with negative impact to detail resolving performance from diffraction effect caused by smaller pitch and larger F#; (2) with negative impact to signal throughout caused by larger F#; and (3) with negative impact to FPA thermal sensitivity caused by lower background tempertures. These results mean that, for some applications such as solider systems, acceptable range performance even in cold weather can be obtained from compact, lightweight infrared imaging systems with the use large F# optics, and high resolution, small pixel pitch detector arrays.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 2014
- Accession Number
- AD1017641
Entities
People
- P. Laou
Organizations
- Defence Research and Development Canada