filter notch

Could you tell me how filter notch work's?

On Apr 25, 6:36 am, tw <"zoty1[nospam]"@tlen.pl> wrote:
> Could you tell me how filter notch work's?

It has a frequency response that is flat then dips down sharply to
attenuate noise in a narrow band of frequencies...

tw wrote:

> Could you tell me how filter notch work's?

It works very well, if you don't ask too much.

VLV

tw wrote:
> Could you tell me how filter notch work's?

What kind of notch filter? Analog? Digital? Software?

I imagine that you are interested in the principle of operation. We 
would need to know more about your background to give a meaningful answer

Jerry
-- 
Engineering is the art of making what you want from things you can get.
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

On Apr 24, 10:36 am, tw <"zoty1[nospam]"@tlen.pl> wrote:
> Could you tell me how filter notch work's?

Zero on the unit circle in the complex Z-plane
(actually just inside, to be stable even in the
presence of arithmetic/rounding/quantizing type
errors or noise).

Ron N. wrote:
> On Apr 24, 10:36 am, tw <"zoty1[nospam]"@tlen.pl> wrote:
>
> > Could you tell me how filter notch work's?
>
> Zero on the unit circle in the complex Z-plane
> (actually just inside, to be stable even in the
> presence of arithmetic/rounding/quantizing type
> errors or noise).

How would you characterize the stability issue of zeros?

On Apr 25, 12:02 am, Andor <andor.bari...@gmail.com> wrote:
> Ron N. wrote:
> > On Apr 24, 10:36 am, tw <"zoty1[nospam]"@tlen.pl> wrote:
>
> > > Could you tell me how filter notch work's?
>
> > Zero on the unit circle in the complex Z-plane
> > (actually just inside, to be stable even in the
> > presence of arithmetic/rounding/quantizing type
> > errors or noise).
>
> How would you characterize the stability issue of zeros?

(must have been a brain flip :)

Are notches that close to the unit circle even "usefully"
invertible to stable poles?


IMHO. YMMV.