How to know the order and coefficients of a new cascaded filter?

5 次查看（过去 30 天）

Nourhan 2014-4-23

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/126837-how-to-know-the-order-and-coefficients-of-a-new-cascaded-filter

Hello everyone :)

I have 3 serial filters and I want to generate one cascaded filter. I used dfilt.cascade command in Matlab. How can I check the order and the new coefficients of the new filter?

The Matlab code is:

%%%%%%%%%%%%

num1=[1 0 0 0 0 0 -2 0 0 0 0 0 1];

den1=[1 -2 1];

low=dfilt.df2(num1,den1);

num2=[-1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 32 -32 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1];

den2=[1 -1];

high=dfilt.df2(num2,den2);

num3=[-1 -2 0 2 1]/8;

dif=dfilt.dffir(num3);

% Cascaded Low,High, and Differentiator filters

Hcas=dfilt.cascade(low,high,dif);

%%%%%%%

I need to know the order and coefficients of Hcas filter.

Thanks in advance

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

回答（0 个）

请先登录，再回答此问题。

类别

Signal Processing DSP System Toolbox Code Generation C Code Generation

在 Help Center 和 File Exchange 中查找有关 C Code Generation 的更多信息

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by