You're right. My example assumed float output, but it would be easier to
use complex out with dimension 1.
On Wed, Sep 21, 2022, 03:11 Marcin Puchlik
wrote:
> The block outputs "dimension" values for each input
>
> Does that mean that for the same input bit sequence there will be
> "dimension" output symbols? If yes this is awkward in my opinion
>
> So, 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:
> [image: image.png]
> [image: image.png]
> 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 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 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
>>>
>>>
>>>
