Title :
Sea-spike backscatter from a steepening wave
Author :
Holliday, Dennis ; DeRaad, Lester L., Jr. ; St-Cyr, Gaetan J.
Author_Institution :
Logicon, Los Angeles, CA, USA
fDate :
1/1/1998 12:00:00 AM
Abstract :
H-pol and V-pol backscatter cross sections at incidence angles of 85°, 60°, and 40° are computed at X-band for two temporal sequences of simulated sea waves, one with a wavelength of 1 m and the other with a 2.3 m wavelength, that are steepening as they undergo breaking. At an incidence angle of 85° (5° grazing) H-pol and V-pol backscatter from these waves are shown to have the characteristics of a sea spike. At a 60° incidence angle only the l m sequence produces a sea spike. No sea spike is seen from either sequence at 40
Keywords :
backscatter; electromagnetic wave polarisation; electromagnetic wave scattering; microwave propagation; ocean waves; radar cross-sections; 1 m; 2.3 m; X-band; backscatter cross sections; breaking waves; horizontal polarization backscatter; incidence angle; sea-spike backscatter; simulated sea waves; steepening wave; temporal sequences; vertical polarisation backscatter; wavelength; Backscatter; Computational modeling; Displays; Electric variables measurement; Electromagnetic scattering; Oceans; Radar clutter; Radar cross section; Sea measurements; Sea surface;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
