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.
next parent 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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