On the Feasibility of Using FLIR )Forward Looking Infrared) Data for Crosswind Measurements.
Abstract
The feasibility was theoretically examined and experimentally tested for extracting crosswind information from a forward looking infrared thermal sight system (FLIR). A general solution to the problem of obtaining crosswind information from the observation of focal plane image fluctuations is obtained. Wind weighting functions are obtained for receiving apertures and detector sizes of interest for the particular case of viewing the horizon. Experimental results are presented from measurements at visible wavelengths using stationary detectors placed in the focal plane, and also from the recorded video signals obtained directly from the FLIR. These results show that under controlled conditions with a suitable scene and C sub n to the 2nd power level it is possible to obtain crosswind information from the FLIR system.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1980
- Accession Number
- ADA087738
Entities
People
- G. R. Ochs
- S. F. Clifford
- Ting-i Wang
Organizations
- Atmospheric Sciences Laboratory