Prev: FTDNN
Next: 3D Matrix Multiplication
From: astro mmi on 8 Dec 2009 13:02
Hello everyone,
Suppose I have the numerator and denominator coefficients of the transfer function H(z)=Y(z)/X(z).Using which MATLAB can I get the poles and zeros of this transfer fn?

Also,How can I plot the step function in MATLAB?

Thirdly,if I want to implement an eqn of the form
(sin(n*pi*cutoff1)-sin(n*pi*cutoff2))/n*pi for n=-15 to 15 how can I do it in MATLAB?

Thanx in advance.
From: Wayne King on 8 Dec 2009 14:14
"astro mmi" <pyarsa_madhu(a)yahoo.co.in> wrote in message <hfm4ba$q5p$1(a)fred.mathworks.com>...
> Hello everyone,
> Suppose I have the numerator and denominator coefficients of the transfer function H(z)=Y(z)/X(z).Using which MATLAB can I get the poles and zeros of this transfer fn?
>
> Also,How can I plot the step function in MATLAB?
>
> Thirdly,if I want to implement an eqn of the form
> (sin(n*pi*cutoff1)-sin(n*pi*cutoff2))/n*pi for n=-15 to 15 how can I do it in MATLAB?
>
> Thanx in advance.

See

>>doc tf2zp

and

>>doc tf2zpk

For the step function, you can convert your numerator and denominator coefficients into a dfilt object and call step on the dfilt object

[B,A] = butter(10,[0.25 0.5]);
Hd = dfilt.df2(B,A); %I just picked a direct form II structure
step(Hd)

Hope that helps,
Wayne
 | 
Pages: 1
Prev: FTDNN
Next: 3D Matrix Multiplication