Talk:Wiener filter
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[edit] Lack of derivation
The article lacks a derivation of the different Wiener filters. --Fredrik Orderud 16:24, 8 May 2005 (UTC)
[edit] discrete time
Hi there. I would like to contribute to this article, specially talking about the discrete time case, solutions, and the LMS and RLS algorithms... But I'm kinda confused, because the way the filter is introduced is different from what I'm used to (what is a good thing, actually).
I believe this article needs some structural changes, but I don't want to simply start changing the place of things and piss off who wrote the current stuff.
I can't say how I think the whole structure of the article should be, because I'm still trying to understand what is there :) . I just would like a place to write specifically about the discrete-time case, with a cross-correlation matrix. Also, I think we should talk about the equalisation case, where the noise is the signal trough a channel, and filtering the noise means finding an inverse filter to the channel!... A hot topic, IMHO. -- NIC1138 05:19, 6 December 2005 (UTC)
[edit] What is S?
In this article what does the capital S stand for?
- It is the Laplace transform of small s(t). --Memming 18:30, 2 July 2006 (UTC)
[edit] What is α?
In this article what is the α which suddenly appears in the section entitled stationary solution?
Also I think a discrete time treatment (as mentioned by NIC1138) would be useful. Encyclops 16:27, 13 August 2006 (UTC)
- Alpha may be the lead/lag time, which is called d earlier in the article Encyclops 21:45, 13 August 2006 (UTC)
