I am using pzmap where poles and zeros are ploted but my question how can i see poles on unit circle only not zeros?

30 次查看（过去 30 天）
Muhammad
Muhammad 2018-10-22
评论： Muhammad 2018-10-23
I am using frequency response analysis and i want to plot the poles of the transfer function on unit circle without ploting zeros. Can anyone help me how can i do that?

请先登录，再回答此问题。

采纳的回答

Erivelton Gualter
Erivelton Gualter 2018-10-22
You can extract the pole and zeros and construct your model again using zpk for example.
Check the following example:
s = tf('s');
G = (s+0.5)/(s^2+s-0.5);
[P, Z] = pzmap(G);
G_without_zeros = zpk(P,[],1);
subplot(211); zplane(Z,P); title('Ploting Poles and Zeros on Unit Circle');
subplot(212); zplane(Z,[]); title('Ploting only Zeros on Unit Circle');
  5 个评论
显示 3更早的评论
Walter Roberson
Walter Roberson 2018-10-22
In R2014b and later, if you "hold on" then the xlim and ylim should be preserved. In R2014a and earlier, you needed to "hold all" to have the limits preserved.

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