Title :
Study on the Doppler spectrum from the time-varying sea surface using Kirchoff approximation
Author :
Guo Lixin ; Yuchao, Ren
Author_Institution :
Sch. of Sci., Xidian Univ., Xi´´an, China
Abstract :
A linear model is applied to obtain the temporal evolution of the rough ocean-like surface. It assumes that each surface harmonic propagates according to the dispersion relation. The results of Monte Carlo numerical simulations for the electromagnetic wavelength of 5 m (VHF) reveal the behavior of the Doppler spectrum that depends on the angle of incidence and the wind speed.
Keywords :
Doppler broadening; approximation theory; backscatter; echo; electromagnetic wave scattering; rough surfaces; time-varying systems; 5 m; Doppler spectrum; Kirchoff approximation; angle of incidence; dispersion relation; electromagnetic scattering; radar echoes; rough ocean-like surface; signal backscattering; surface harmonic propagation; temporal evolution; time-varying sea surface; wind speed; Electromagnetic propagation; Electromagnetic scattering; Electronic mail; Kirchhoff´s Law; Oceans; Polarization; Rough surfaces; Sea surface; Surface roughness; Wind speed;
Conference_Titel :
Radio Science Conference, 2004. Proceedings. 2004 Asia-Pacific
Print_ISBN :
0-7803-8404-0
DOI :
10.1109/APRASC.2004.1422395
