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Re: [Discuss-gnuradio] Can the io signatur of the gnuradio blocks be dyn
From: |
Martin Braun (CEL) |
Subject: |
Re: [Discuss-gnuradio] Can the io signatur of the gnuradio blocks be dynamically updated? |
Date: |
Fri, 12 Oct 2012 17:26:34 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Fri, Oct 12, 2012 at 11:16:44AM -0400, address@hidden wrote:
> So, my question is why this is any different than the existing cases of FFT
> and
> FIR filter blocks -- they have an I/O signature of a complex-stream, and
> internally they "do the right thing" when the filter length changes. I don't
> immediately see why blocks that conceptually "change size" can't just do it
> internally just like the FFT and FIR filter cases.
These blocks never change the io-signature--not in a GNU Radio sense,
nor in a DSP sense. They always take 1 sample and output 1 sample. They
*do* mess around with the history, I believe. This is something very
different than dynamically changing the input vector length.
MB
--
Karlsruhe Institute of Technology (KIT)
Communications Engineering Lab (CEL)
Dipl.-Ing. Martin Braun
Research Associate
Kaiserstraße 12
Building 05.01
76131 Karlsruhe
Phone: +49 721 608-43790
Fax: +49 721 608-46071
www.cel.kit.edu
KIT -- University of the State of Baden-Württemberg and
National Laboratory of the Helmholtz Association
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