利用MATLAB的FDATOOL观察零极点.doc

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1、一、实验目的1.利用MATLAB的fdatool观察传递函数H(z)的零极点分布、幅度响应、脉冲响应及阶跃响应，并观察零极点分布与系统稳定性之间的关系。2.利用MATLAB的fdatool验证有关稳定性的三个重要结论。3.利用MATLAB绘制传递函数的三维图像，更直观的查看传递函数在实轴与虚轴小的变化情况。二、实验条件PC机，MATLAB7.0三、实验内容实验前准备：Direct-Form1▼Numerator

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3、eari%—FilterCoefficientsFilterStructure:SamplingFrequency:昭I打开MATLAB屮的fsatool,将相关参数设置好。ImportFilter在Numerator屮输入H⑵屮分子的系数(注意：系数按降幕顺序输入)，在Denominator屮输入H(z)i

4、i分母的系数。点击ImportFilter观察图像。(一)观察不同传递函数H(z)之间相关响应图像之间的差别a.H(Z)~l+0.2z_1+0.01zDrect-FormI▼Numerator001(Clear)Units:Normahzed(

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