出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The JONSWAP spectrum sea surface is mainly determined by parameters such as the wind
speed, the fetch length and the peak enhancement factor. In view of the study of electromagnetic
scattering from JONSWAP spectrum sea surface, we need to determine the above parameters.
In this paper, we use the double summation model to generate the multi-directional irregular
rough JONSWAP sea surface and analyze the distribution concentration parameter and the
peak enhancement factor’s influence on the rough sea surface model, then using physical optics
method to analysis the JONSWAP spectrum sea surface’s average backward scattering
coefficient change with the different distribution concentration parameters and the peak
enhancement factors, the simulation results show that the peak enhancement factor influence on
the ocean surface of the average backward scattering coefficient is less than 1 dB, but the
distribution concentration parameter influence on the JONSWAP surface of the average
backward scattering coefficient is more than 5 dB. Therefore, when we study the
electromagnetic scattering of the JONSWAP spectral sea surface, the peak enhancement factor
can be taken as the mean value but the distribution concentration parameter have to be
determined by the wave growth state.
