Estimation and Analysis of Lacunarity of Scattering Signals at Different Incident Angles

摘要：

The sea surface has the fractal nature. For normal incidence, some methods have been developed for extracting fractal parameters from the electromagnetic (EM) scattered signals. When the EM waves of different incident angles are scattered by the fractal sea surface, the scattered signal recorded at observation point will show many different properties, which will affect the accuracy of estimation of fractal parameters. In this paper, based on the method of skeleton of wavelet transform modulus maxima (WTMM), we analyze the hierarchical structures of the EM scattered signals at different incident angles to estimate the lacunarity of the fractal surface. It is shown that the optimal incident angle is between the sea surface and incident pulse passing through the mirror position of observation point and the midpoint of one-dimensional sea surface, approximately. The results of simulation are found interestingly successful to use the estimated parameters in remote sensing applications.

关键词： lacunarity rough sea surface wavelet analysis WTMM

作者: Yang Li Xia Bai Ran Tao

作者单位: School of Information and Electronics Beijing Institute of Technology, Beijing, China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2184-2187

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）