摘要
为了建立具有多重分形特性的海杂波模型,提出了基于分数布朗运动模型和多重分形理论的海杂波建模新方法。该方法通过对分数布朗运动进行随机时间抽样,产生近似多重分形的随机过程,用以模拟海杂波时间序列。Matlab仿真结果表明:模型产生的时间序列可以有效地模拟海杂波的多重分形特性。
The model for radar sea-clutter using fractal theory has widely application in many re- search fields. A new modeling method for muhi-fractal sea clutter is proposed based on analysis of multi- fractal characteristic and FBM model. By time sampling of the FBM, this method can generate approxi- mate multi-fractal random process to simulate time series of sea clutter. Matlab simulation results show that the time series generated by the model can effectively simulate the muhi-fractal features of sea clut- ters.
出处
《现代防御技术》
北大核心
2014年第1期165-169,共5页
Modern Defence Technology
关键词
分数布朗运动模型
海杂波
多重分形
随机抽样
MATLAB仿真
fractional Brownian motion （FBM） model
sea-clutter model
multi-fractal
randomsampling
Matlab simulation
