Title :
SAR imaging simulation of sea surface with breaking wave at low grazing angles
Author :
Zhang, M. ; Luo, G. ; Wei, P.B. ; Zhang, D.M.
Author_Institution :
Sch. of Phys. & Optoelectron. Eng., Xidian Univ., Xi´an, China
Abstract :
In this paper, the mesoscale breaking wave model is introduced to account for the contribution of breaking waves. At high frequency bands, the backscattering coefficient of the sea surface is calculated by the two-scale method (TSM). Accounting for the coverage of breaking wave, the mesoscale breaking wave model is employed to modify the backscattering coefficient based on TSM. And also, the spatial distribution of the breaking waves is obtained by using the slope criterion. Based on these, the SAR images of sea surface at incident angle 80° with breaking wave are simulated. The simulated SAR images can indicate sea spikes and high polarization ratios, which is a typical event of sea spike.
Keywords :
ocean waves; oceanographic techniques; radar imaging; remote sensing by radar; synthetic aperture radar; SAR imaging simulation; breaking wave coverage; low grazing angles; mesoscale breaking wave model; polarization ratios; sea surface SAR images; sea surface backscattering coefficient; two-scale method; Backscatter; Optical surface waves; Radar polarimetry; Scattering; Sea surface; Surface waves; Synthetic aperture radar;
Conference_Titel :
Computational Electromagnetics (ICCEM), 2015 IEEE International Conference on
Conference_Location :
Hong Kong
DOI :
10.1109/COMPEM.2015.7052627
