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From: Valery Pipin <pip@iszf.irk.ru>
To: community@lists.altlinux.org
Subject: Re: [Comm] please help on translation
Date: Wed, 5 Jul 2006 13:47:27 +0900
Message-ID: <200607051347.27871.pip@iszf.irk.ru> (raw)
In-Reply-To: <mailman.758.1152068626.31154.community@lists.altlinux.org>

> > > Более правильно будет - фильтр низких частот (ФНЧ). Утверждаю это как
> > > радиотехник со стажем.
Я кстати ничего не имею против такой переформулировки.
Просто мне показалось что это не совсем касается радиотехники.
> >
> > Тогда про комментируйте пожалуйста:
> > http://ccrma.stanford.edu/~jos/filters/Pole_Zero_Analysis_I.html).
> > _______________________________________________
>
> Если не сложно, скопируйте в письмо, что там написано? У меня нет
> возможности выхода в "мировой" интернет

This chapter discusses pole-zero analysis of digital filters. Every digital 
filter can be specified by its poles and zeros (plus a gain factor). Poles 
and zeros give useful insights into a filter's response, and can be used as 
the basis for digital filter design. The Durbin step-down recursion for 
checking filter stability by finding the reflection coefficients is 
presented, including matlab code. 
 Going back to Eq. (6.5), we can write the general transfer function for the 
recursive LTI digital filter as 
 
$\displaystyle H(z) = g\frac{1 + \beta_1 z^{-1}+ \cdots + \beta_M z^{-M}}{1 + 
a_1 z^{-1}+ \cdots + a_N z^{-N}} \protect$

Еще отсюда:
http://www-k.ext.ti.com/SRVS/Data/ti/KnowledgeBases/analog/document/faqs/1p.htm
Problem:
 What is a Single Pole Filter? 
 Solution:
 A Single Pole filter is a filter that rolls off frequencies in the stop band 
20 dB per decade.


       reply	other threads:[~2006-07-05  4:47 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-05  4:47 ` Valery Pipin [this message]
2006-07-05  5:17   ` Andrew Borodin
2006-07-05  5:53   ` Vyatcheslav Perevalov

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