On Feb 19, 9:29 am, Rune Allnor <all...@tele.ntnu.no> wrote:
> On 19 Feb, 18:10, dbd <d...@ieee.org> wrote:
>
>

> > On Feb 19, 4:15 am, Rune Allnor <all...@tele.ntnu.no> wrote:
>
> > > On 7 Feb, 17:43, "Pavel.Schu...@gmail.com" <Pavel.Schu...@gmail.com>
> > > wrote:
>
> > > > What is the impulse response
> > > > of fiter matched for example with rectangular transmit filter or
> > > > raised cosine filter in that case?

> > > Window functions in a matched filter? That's a new one.
> > > How does that work?

> > > Rune
>
> > If the signal was generated by windowing, as all finite signals are,
> > don't you try to match the window?
>
> Not explicitly. The way I know the matched filter, you
> try and match the impulse response. How the impulse is
> found is a separate issue. If a non-rectangular window
> function was used somewhere it would be part of the
> impulse response already and not need explicit handling.
>
> Rune

Rune

You are the only one to suggest any explicit handling of windowing.
The OP mentioned it as part of the transmit function which produces
the impulse response. It was my point that windows are implicit in all
finite responses, a fact that is better dealt with by understanding
the consequences than by a knee-jerk reaction on seeing the word:
windowing. The confusion about windowing comes from thinking that it
is something we can do, or not, explicitly after the impulse response
is determined.

Dale B. Dalrymple