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From: | Jeff Long |
Subject: | Re: Dimensions parameter in Chunks to Symbols bloc |
Date: | Wed, 21 Sep 2022 05:11:39 -0400 |
The block outputs "dimension" values for each inputDoes that mean that for the same input bit sequence there will be "dimension" output symbols? If yes this is awkward in my opinionSo, a quadrature modulation would have dimension=2 and would output I and Q for each input.What do you mean quadrature modulation? Let's assume QPSK, which indeed is quadrature modulation, if you want to implement that modulation scheme the Chunks to Symbols blocks setting should look like this:When you would have put Dimension=2 this wouldn't work correctly.The symbol table would have "dimension" entries for every possible input value.Can you show any example leveraging Dimensions=2?śr., 21 wrz 2022 o 01:04 Jeff Long <willcode4@gmail.com> napisał(a):The block outputs "dimension" values for each input. So, a quadrature modulation would have dimension=2 and would output I and Q for each input. The symbol table would have "dimension" entries for every possible input value.On Tue, Sep 20, 2022 at 1:24 PM Marcin Puchlik via GNU Radio, the Free & Open-Source Toolkit for Software Radio <discuss-gnuradio@gnu.org> wrote:Hi,Can someone explain to me what is the purpose of Dimension parameter in the Chunks to Symbols block? I was trying to use it as Pi/2-BPSK modulator but it can't work in that mode.Thanks in advance--Marcin Puchlik
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