求matlab高手,线性时不变系统,差分方程如下y(n)-0.5y(n-1)+0.25y(n-2)=x(n)+2x(n-1)+x(n-3)a.\x05确定系统的稳定性提示:用zplane( )函数画出零点极点图,看是否极点全在单位圆内.b.\x05在 之间求得并画出系
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![求matlab高手,线性时不变系统,差分方程如下y(n)-0.5y(n-1)+0.25y(n-2)=x(n)+2x(n-1)+x(n-3)a.\x05确定系统的稳定性提示:用zplane( )函数画出零点极点图,看是否极点全在单位圆内.b.\x05在 之间求得并画出系](/uploads/image/z/6571988-44-8.jpg?t=%E6%B1%82matlab%E9%AB%98%E6%89%8B%2C%E7%BA%BF%E6%80%A7%E6%97%B6%E4%B8%8D%E5%8F%98%E7%B3%BB%E7%BB%9F%2C%E5%B7%AE%E5%88%86%E6%96%B9%E7%A8%8B%E5%A6%82%E4%B8%8By%28n%29-0.5y%28n-1%29%2B0.25y%28n-2%29%3Dx%28n%29%2B2x%28n-1%29%2Bx%28n-3%29a.%5Cx05%E7%A1%AE%E5%AE%9A%E7%B3%BB%E7%BB%9F%E7%9A%84%E7%A8%B3%E5%AE%9A%E6%80%A7%E6%8F%90%E7%A4%BA%EF%BC%9A%E7%94%A8zplane%28+%29%E5%87%BD%E6%95%B0%E7%94%BB%E5%87%BA%E9%9B%B6%E7%82%B9%E6%9E%81%E7%82%B9%E5%9B%BE%2C%E7%9C%8B%E6%98%AF%E5%90%A6%E6%9E%81%E7%82%B9%E5%85%A8%E5%9C%A8%E5%8D%95%E4%BD%8D%E5%9C%86%E5%86%85.b.%5Cx05%E5%9C%A8+%E4%B9%8B%E9%97%B4%E6%B1%82%E5%BE%97%E5%B9%B6%E7%94%BB%E5%87%BA%E7%B3%BB)
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