y[n] = x[n] - x[n-1] x[n-2] I need to find a) Find the transfer function. b) Give the impulse response. d) Sketch the frequency respo

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Rhea Shah 2020-4-6

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评论： Rhea Shah 2020-4-9

I need to find a) Find the transfer function. b) Give the impulse response. d) Sketch the frequency response. How to do it?

[n] = x[n] - x[n-1] + x[n-2]

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Steven Lord 2020-4-6

Okay. What is your specific question about where you're having difficulty?

Rhea Shah 2020-4-7

Is the approach corect?

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回答（1 个）

Birdman 2020-4-7

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在 MATLAB Online 中打开

Try this:

z=tf('z',0.001);
Gz=1-z^-1+z^-2;
%%transfer function
Gs=d2c(Gz,'tustin')
%%impulse response
figure(1);
impulse(Gs)
%%frequency response
figure(2);
bode(Gs)

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Birdman 2020-4-7

在 MATLAB Online 中打开

Do you have Control System Toolbox installed? Type

ver

in command line and paste the output here.

Rhea Shah 2020-4-9

Hey thank you so much. I got the impulse and frequency response output. But i am not getting transfer function output as I don't have the tool box installed. I have the 2019a version. Is there some another approach to it?

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