Surface-search radar performance in the evaporation duct: Global predictions, Revision A
Abstract
Surface-search radar systems, if properly designed, may utilize the oceanic surface evaporation duct to detect surface targets at ranges greater than 60 nmi. Theoretical relationships between the thickness of the evaporation duct and maximum detection range are derived for four radars at frequencies of 3, 6, 10, and 18 GHz. Distributions of maximum detection range are calculated from two worldwide duct height climatologies. The analysis considers four targets with three possible radar cross section distributions applied to each target. Since rigorous full mode waveguide analysis of all combinations is impractical, the propagation characteristics are approximated using two single mode techniques.
- Publication:
-
Final Report
- Pub Date:
- May 1986
- Bibcode:
- 1986nosc.rept.....A
- Keywords:
-
- Ducted Flow;
- Evaporation;
- Ocean Surface;
- Radar Range;
- Radar Targets;
- Search Radar;
- Prediction Analysis Techniques;
- Radar Cross Sections;
- Spatial Distribution;
- Target Thickness;
- Waveguides;
- Communications and Radar