Hi Marcus,
Thanks for the explanation.
In fact, the block I'm having trouble with is self.iio_pluto_source_0_0,
which is defined as
pluto_source_impl::pluto_source_impl(fmcomms2_source::sptr block) :
hier_block2("pluto_source",
io_signature::make(0, 0, 0),
io_signature::make(1, 1, sizeof(gr_complex))),
fmcomms2_source_f32c(true, false, block)
As far as I understand, the variable type of the output here is gr_complex,
which in Python corresponds to numpy.complex64. So, in that sense, I think
my input variable type is correct, otherwise, I would probably get an
error. But, I'd like to know if the output variable in pluto_source_impl is
fixpoint and, in that case, how do I define my input variable in Python to
match the fixpoint type?
Thanks in advance.
- Verónica
On Thu, Nov 25, 2021 at 7:49 PM Marcus Müller <[email protected]>
wrote:
> Hi Verónica,
>
> in your long/short_sync_block's __init__, you set the in_sig to
> [np.complex64], which is
> of a complex number composed of two 32 bit floats.
>
> You can change that to other types!
>
> But: your wifi_phy block outputs something specific, it needs to match
> that.
>
> Best regards,
>
> Marcus
>
> On 25.11.21 17:47, Verónica Toro Betancur wrote:
> > Hi Martin,
> >
> > Yes, that could definitely be the case. I don't have my radios right now
> with me, but
> > I'll try it tomorrow. And sorry for the silly question, but how should
> I define it in
> > Python to be fixpoint?
> >
> > On Thu, Nov 25, 2021 at 6:25 PM Martin Braun <[email protected]>
> wrote:
> >
> > Verónica,
> >
> > have you maybe mismatched data types? Like, the real signals are
> fixpoint, but your
> > Python is doing floating point?
> >
> > --M
> >
> > On Thu, Nov 25, 2021 at 2:59 PM Verónica Toro Betancur <
> [email protected]> wrote:
> >
> > Hi,
> >
> > I am trying to detect and decode WiFi and ZigBee signals in
> GNURadio. For the
> > detection, I have implemented my own blocks in Python. It all
> works well with
> > simulated signals but the problem comes when I use radios to
> acquire real
> > signals. I'm using Pluto SDR and it works perfectly when I use
> it in workflow
> > examples but not in my own implementation. I mean, I plot the
> data that comes
> > directly from the radio and it looks good in the given examples
> but, in mine, it
> > looks like noise.
> >
> > I am using the exact same parameters in both cases. The only
> difference I see is
> > that the blocks in the example are all in C++ while mine are in
> Python. Could
> > this be the problem? If so, is there a way to solve it other
> than writing the
> > blocks in C++?
> >
> > Thanks in advance.
> >
> >
> > Best regards,
> > Verónica
> >
>
