Fourth Order Moment Statistical Characteristic of the Laser Pulse Scattering on One-dimensional Random Rough Surface
The fourth order moment statistical characteristic of the pulse wave scattering on one-dimensional random rough surfaces is investigated numerically and presented based on Kirchhoffs approximation in detail. As a special application, the fourth order moment (FOM) is simplified to get the two positions and two frequencies mutual correlation function of the pulse wave scattering on random rough surfaces. Which the distributions of FOM change with the coherence bandwidth frequency difference and scattering angles in different incidence angles, the mean of fluctuating heights and coherent length on the random rough surface is computed. The numerical results show that the mean of fluctuating heights and coherent length of random rough surfaces have an important effect on the value of the FOM. Generally, the largest scattering value and smallest coherence bandwidth of the FOM occur at the specular directions. That is to say, the FOM will have a lower coherent component and its distributions of scattering angles will be broadened in relation to the rugged surface. At same time, the FOM decreased rapidly as there was a bigger coherence bandwidth frequency difference.
Ming-Jun Wang Zhen-Sen Wu Ying-Le Li Geng Zhang
Department of Physics,Xian Yang Normal College,Xianyang,Shaanxi 712000,China;School of Science,Xidia School of Science,Xidian University,Xian,Shaanxi 710071,China Department of Physics,Xian Yang Normal College,Xianyang,Shaanxi 712000,China
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1708-1711
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）