Filter transfer function using coefficients

12 次查看（过去 30 天）
mir khadim
mir khadim 2019-8-31
评论： Star Strider 2019-9-4
I have with me a low pass filter with coefficients given by , where reprents the filter reference frequency, k runs from -N/2 to N/2, where N is the order of the filter and h(k) is a hamming window function. The value of Coeff(0) is replaced by 1 when k=0. Now that i have my filter coefficients readily available with me, if i wish to find the transfer function of the same filter in order to find the amplitude and phase response of the filter. How do i do so. I guess whole point of my question is to how one can find the transfer function of a filter if the filter coefficients are given. Is there a command for that in matlab, or something else?

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2019-8-31
Since you have the (a,b) vectors for your filter, use the freqz function to create the Bode plot from them. Your filter appears to be discrete. For a continuous filter, use the freqs function (linked to at the end of that page).
  4 个评论
显示 2更早的评论

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Digital Filter Analysis 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by