Scattering coefficient evaluation from a two-dimensional sea fractal surface

被引:29
作者
Berizzi, F [1 ]
Mese, ED [1 ]
机构
[1] Univ Pisa, Dept Informat Engn, Fac Engn, Pisa, Italy
关键词
fractal; radar; scattering; sea;
D O I
10.1109/TAP.2002.1003377
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This work deals with the problem of the electromagnetic scattering from a sea fractal surface. The final goal is to demonstrate that the sea scattered signal retains some fractal characteristic of the two-dimensional (2-D) sea fractal surface. To get this final result, the work was organized in four different steps: 1) Define a 2-D fractal surface of the sea; 2) compute the electromagnetic (EM) scattered signal,; 3) fractally analyze the EM sea scattered signal 4) numerically validate the theoretical results. This paper deals with the first two steps of the work, the other ones are reported in a second paper. Some new insights in the field of the electromagnetic scattering from fractal surfaces come out from this paper. In detail, for the class of the 2-D dynamic Weierstrass-based surfaces with a generic statistical distribution of the amplitude, we provide 1) a closed-form expression of the scattering coefficient and 2) the Kirchhoff approximation conditions on the basis of the general criterion of Soto-Crespo and Nieto-Vesperina. These are the main results of this part, and they are very important for the following applications and uses: 1) Make a theoretical fractal analysis of the signal, as reported in the second part of this work; 2) define a numerical algorithm for clutter generation in radar systems, 3) perform a preliminary statistical analysis of the data.
引用
收藏
页码:426 / 434
页数:9
相关论文
共 22 条
[1]  
ANDREOLI G, 1997, P I EL ENG INT RAD C, P189
[2]  
[Anonymous], 1987, SCATTERING ELECTROMA
[3]  
APEL JR, 1988, PRINCIPLES OCEAN PHY
[4]   Fractal approach for sea clutter generation [J].
Berizzi, F ;
Greco, M ;
Verrazzani, L .
IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION, 2000, 147 (04) :189-198
[5]   Sea-wave fractal spectrum for SAR remote sensing [J].
Berizzi, F ;
Dalle Mese, E .
IEE PROCEEDINGS-RADAR SONAR AND NAVIGATION, 2001, 148 (02) :56-66
[6]  
BERIZZI F, IN PRESS IEEE T ANTE
[7]  
BLAUTH RE, 1987, FAST ALGORITHMS DIGI
[8]   The use of fractals for modeling EM waves scattering from rough sea surface [J].
Chen, J ;
Lo, TKY ;
Leung, H ;
Litva, J .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1996, 34 (04) :966-972
[9]   Gaussian rough surfaces and Kirchhoff approximation [J].
Collaro, A ;
Franceschetti, G ;
Migliaccio, M ;
Riccio, D .
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1999, 47 (02) :392-398
[10]  
Franklin D., 1996, ECLECTUS, V1, P6