The multifractal spectrum of a sea clutter using a random walk model

被引：0
作者：
Jingbo He
Jianghu Xu
机构：
[1] Naval University of Engineering,Electronics Engineering College
来源：
Acta Oceanologica Sinica | 2017年 / 36卷
关键词：
random walk; sea clutter; multifractal;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The radar echo signal of a sea clutter is nonlinear, nonstationary and time varying. A multifractal measure analysis can describe the local singularity of a physics system. The random walk model of a sea clutter scattering is analysed to disclose the intrinsic physical characteristics and laws of the sea clutter. Stochastic differential equations are given for the physical quality of the sea clutter. A diffusion process model is established Itô using formula. The singularity of the random walk model is tested by a multifractal spectroscopy, and the accuracy of this model is proven by the multifractal spectroscopy of a real-life IPIX radar data set. Thus, the random walk model is effective for describing the dynamics mechanism of the sea clutter.
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页码：23 / 26
页数：3
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