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| 混沌测量仿真中的噪声模型研究 | |
| 引用本文： | 陈维,孟晨,崔少辉,易锋.混沌测量仿真中的噪声模型研究[J].系统仿真学报,2012,24(10):2079-2082. |
| 作者姓名： | 陈维 孟晨 崔少辉 易锋 |
| 作者单位： | 1. 91445部队,大连,116043 2. 军械工程学院,石家庄,050003 3. 渤海大学信息科学与技术学院,锦州,121013 |
| 摘 要： | 混沌测量方法适用于强噪声中正弦信号的参数测量,用Simulink对此类方法进行仿真实验验证和效果评估时,需要研究混沌测量仿真系统的形式,尤其是噪声的建模及其参数设置,以保证实验结论的正确性。仿真系统的形式包括仿真模块及其参数设置,据此仿真系统的形式分为三种。利用非线性随机微分方程的数值积分法对积分模块进行分析后发现:不同的仿真系统形式对应两种不同的噪声模型。根据噪声的统计特性和维纳-辛钦定理求出了这两种噪声模型的平均功率和带宽,为混沌测量仿真中噪声模块的参数选择提供了理论依据。 |
| 关 键 词： | 混沌测量 Simulink 噪声模型 参数设置 |
Noise Model in Chaos Measurement Simulation |
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| CHEN Wei,MENG Chen,CUI Shao-hui,YI Feng.Noise Model in Chaos Measurement Simulation[J].Journal of System Simulation,2012,24(10):2079-2082. | |
| Authors: | CHEN Wei MENG Chen CUI Shao-hui YI Feng |
| Institution: | 1.Army 91445,Dalian 16043,China;2.Ordnance Engineering College,Shijiazhuang 50003,China; 3.Information Science & Technology College of Bohai University,Jinzhou 121013,China) |
| Abstract: | Chaos measurement method is suitable for parameters measurement of sinusoidal signal in strong noise.When this method is proved and evaluated by simulation testing in Simulink,in order to ensure correctness of conclusion from the testing,it is necessary to study the simulation system in detail,especially modeling of the noise and its parameters configuration.The simulation system includes simulation modules and their parameters configuration and can be divided into three kinds.After analyzing integral module by numerical value integral methods for non-linear stochastic differential equation,it is found that different kinds of simulation systems have two different kinds of noise models.According to noise statistical characters and Wiener-Khintchine theorem,average power and frequency bandwidth of these two noise models is deduced.These works provide theory support for parameters configuration of noise module in chaos measurement simulation. |
| Keywords: | chaos measurement Simulink noise model parameters configuration |
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