Is it possible to generate impulse response, passband ripple, stopban attenuation if I am with a set of filter coefficients?

If I have the sets of filter coefficients, is it possible to measure impulse response, passband ripple, stopband attenuation using matlab?

Answer 1

[Star Strider]

Yes. If you have the Signal Processing Toolbox, you can generate a Bode plot with the freqz function, and the impulse response with the impz function.

[Poulami Das]

Thank you so much for your kind reply. I will try to use Bode plot. But impz will work to plot impulse response, can I get the value of h[n] using matlab? I just want to optimize the error G(w)[Hd(w)-Hi(w)]. For Hi(w) calculation I will be needed to know h(n). Hd represents desired filter, Hi represents designed filter. G(w) = weighting function.

[Poulami Das]

I have seen freqz function. But it will work on filter parameters. If I am having a set of filter coefficients, then what should I do? Order of the filter is 20 therefore number of coefficients 11. From these 11 coefficients how can I plot frequency response?

Answer 2

[Poulami Das]

I have seen freqz function. But it will work on filter parameters. If I am having a set of filter coefficients, then what should I do? Order of the filter is 20 therefore number of coefficients 11. From these 11 coefficients how can I plot frequency response? impz will work to plot impulse response, can I get the value of h[n] using matlab? I just want to optimize the error G(w)[Hd(w)-Hi(w)]. For Hi(w) calculation I will be needed to know h(n). Hd represents desi

[Poulami Das]

Thank you it worked.

[Poulami Das]

Thank you so much. I have checked freqz and impz again. This time more mindfully and it worked.

Answer 3

[Poulami Das]

Thank you so much. I have checked freqz and impz again. This time more mindfully and it worked.

[Star Strider]

My pleasure.