PULSE BROADENING AND 2-FREQUENCY MUTUAL COHERENCE FUNCTION OF THE SCATTERED WAVE FROM ROUGH SURFACES

被引:29
作者
ISHIMARU, A
AILESSENGERS, L
PHU, P
WINEBRENNER, D
机构
[1] Dept. of Electr. Eng., Washington Univ., Seattle, WA
来源
WAVES IN RANDOM MEDIA | 1994年 / 4卷 / 02期
基金
美国国家科学基金会;
关键词
D O I
10.1088/0959-7174/4/2/004
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Analytical expressions for the two-frequency mutual coherence function and angular correlation function of the scattered wave from rough surfaces based on the Kirchhoff approximation are presented. The coherence bandwidth depends on the illumination area as well as on the incident and scattered angles and the surface characteristics. Scattered pulse shapes are calculated as the Fourier transform of the two-frequency mutual coherence function. Calculations based on analytical solutions are compared with millimetre wave experimental data and Monte Carlo simulations showing good agreement.
引用
收藏
页码:139 / 148
页数:10
相关论文
共 14 条
[1]  
Ishimaru A, (1978)
[2]  
Ogilvy JA, (1991)
[3]  
Ziomek LJ, J. Acoust. Soc. Am., 71, 1, pp. 116-126, (1982)
[4]  
Ziomek LJ, J. Acoust. Soc. Am., 71, 6, pp. 1487-1495, (1982)
[5]  
McDonald JF, Tuteur FB, J. Acoust. Soc. Am., 57, 5, pp. 1025-1029, (1975)
[6]  
McDaniel ST, IEEE J. Ocean. Eng., 17, 2, pp. 216-221, (1992)
[7]  
Nitta H, Asakura T, Method for measuring mean particle size of the bulk powder using speckle patterns, Applied Optics, 30, 33, pp. 4854-4858, (1991)
[8]  
Ishimaru A, Chen JS, J. Acoust. Soc. Am., 88, 4, pp. 1877-1883, (1990)
[9]  
Ishimaru A, Chen JS, Waves Random Media, 1, 1, pp. 21-34, (1991)
[10]  
Thorsos EI, The validity of the Kirchhoff approximation for rough surface scattering using a Gaussian roughness spectrum, The Journal of the Acoustical Society of America, 83, 1, pp. 78-92, (1988)