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卡尔曼滤波器程序分析

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离散卡尔曼滤波器程序解析(1)

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例如,以下是一个利用卡尔曼滤波器对温度进行估计的MATLAB程序示例。

复制代码
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

    
  %日 期: 	2015.9.22
    
  %程序功能:	使用卡尔曼滤波器估计温度
    
  %程序变量描述 :X(k)	系统状态变量
    
  %		A	系统矩阵
    
  %		w	噪声
    
  %		Z(k)	观测值
    
  %		H	观测矩阵
    
  %		P(k)	协方差
    
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    
   clear 
    
   N=200;
    
   A=1;
    
   X(1)=1;			%最优估计 初始值 
    
   w=0;
    
   P(1)=10;              	%协方差 初始值

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