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我想知道如何通过参数方法将 ARMA(自回归移动平均)过程转换为 AR(自回归)过程。
即我有一个传递函数 H(z) = (a + b*z)/(c +d*z) 例如H(z) = (0.26 + 0.073*z^-1)/(1 - z^-1),即自回归 (ARMA),我想将其转换为 AR 过程,即H(z) = 1/(p + q*z + r*z^2 + ...)(即只有极点系统)。请给一些提示。
H(z) = (0.26 + 0.073*z^-1)/(1 - z^-1)
H(z) = 1/(p + q*z + r*z^2 + ...)
提前致谢!
如果您正在寻找部分部分分数扩展命令,我建议您尝试
[r, p, k] = residue(b,a)
http://www.mathworks.com/help/matlab/ref/residue.html