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基于FBM的海杂波建模方法

Fractal Model for Sea-clutter Based on FBM
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摘要 为了建立具有多重分形特性的海杂波模型,提出了基于分式Brown运动模型的海杂波建模方法。该方法通过将分式Brown运动模型与随机时间序列模型结合,产生了一个近似多重分形的随机过程来模拟海杂波序列。Matlab仿真与实测数据进行对比,结果表明:模型产生序列具有多重分形的性质,可以有效地对海杂波进行模拟。 The model of radar sea clutter using fractal theory has a wide application in many research fields. This paper proposes inserting a time-varying random sequence in Fractional Brownian Motion ( FBM ) model for obtaining an approximate multi-fractal stochastic process to simulate the sea-clutter sequence based on the analysis of multi-fractal characteri comparison with the measured data,the result s this paper is multi-fractal,which can effectively stic and FBM model. Through Matlab simulation and the hows that the sequence produced by the model proposed in simulate the sea clutter.
出处 《空军工程大学学报(自然科学版)》 CSCD 北大核心 2013年第4期44-47,共4页 Journal of Air Force Engineering University(Natural Science Edition)
基金 陕西省自然科学基金资助项目(2010JQ8007)
关键词 海杂波模型 分式Brown运动模型 多重分形 MATLAB仿真 sea-clutter model fractional brown motion ( FBM ) model multi-fractalMatlab simulation
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