Numerical simulations of bistatic sea echo spectrum in high frequency band Online publication date: Tue, 07-Apr-2015
by Huan He; Guangxue Wang; Yanfeng Han; Fangzhi Gen
International Journal of Wireless and Mobile Computing (IJWMC), Vol. 8, No. 2, 2015
Abstract: Numerical simulations of bistatic sea echo spectrum are helpful to the comprehension of interaction mechanism between radio waves of bistatic HF radar and ocean waves. Moreover, the simulated sea echo spectrum in line with the fact is of great significance for testing the validity and applicability of inversion algorithm. In this paper, numerical simulations of bistatic sea echo spectrum in high frequency band are conducted and the effects of wind speed, wind direction and bistatic angle are discussed. When the bistatic angle is fixed, the trends of bistatic sea echo spectrum under the influence of wind speed and wind direction are the same as those of mono-static sea echo spectrum. However, the integrable singularities resulting from electromagnetic coupling coefficient and the corresponding secondary peaks of bistatic sea echo spectrum vary with the bistatic angle. And the intensity and frequency distribution range of second-order spectrum decrease with the increasing bistatic angle.
Online publication date: Tue, 07-Apr-2015
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