Hello Petr!
Well, OK, so what's that got to do with the Wifi in your subject?
In any case, we do have Constellation Encoder, and Patterned
Interleaver. These two blocks might make the center of your
application.
Have you already been pointed towards the Guided GNU Radio tutorials?
https://tutorials.gnuradio.org
They actually build a digital transmitter, so they might be helpful.
Also, are you sure about the carrier frequencies? 2.4 GHz and 2.5 GHz
are *exactly* the edges of the ISM band, and operating there with
anything but a pure carrier would be illegal, as there would be energy
out of the ISM band. Also, 50 MHz frequency hops seem very wide in a
100 MHz wide band.
Best regards,
Marcus
On Mon, 2018-12-17 at 13:56 +0000, Horký Petr wrote:
> Hello,
> We are trying to take control over drone.
> The drone starts for example at 2,4 GHz and has some pulse width, and pulse repetition frequency we know.
> Pulse1: at start of pulse there is 2,4GHz carrier to synchronize and then BSPK data (two numbers in binary)
> Pulse2: carrier 2,4GHz + BPSK
> Pulse3: carrier 2,45GHz + BPSK
> Pulse4: carrier 2,45GHz+BPSK
> Pulse 5: carrier 2,5Ghz +BPSK ....and so on
> After 12 pulses it starts again at 2,4GHz.
>
> So I have pulse width, pulse repetition frequency, carrier frequency (which hops after 2 pulses), and BPSK (16 bits I think).
> I hope that now it is a little bit more understandable. :) In case it is not a will do my best to describe it better.
> Thank you for help,
>
> Regards,
> Petr
>
>
> Od: Müller, Marcus (CEL) <address@hidden>
> Odesláno: pondělí 17. prosince 2018 12:51:10
> Komu: address@hidden; Horký Petr
> Předmět: Re: [Discuss-gnuradio] Wifi signal -pulse train+bspk
>
> Hi Horký,
>
> could you give us a bit more context? The signal you're describing
> sounds like a single-carrier system, but (modern) WiFi is an OFDM
> system, so I'm not sure what you really want to achieve?
> Maybe paint the bigger picture of why you need this!
>
> Best regards,
> Marcus
>
> On Mon, 2018-12-17 at 10:12 +0000, Horký Petr wrote:
> > Hello guys,
> > my task is to create pulses with half period carrier/ half
> > period bpsk in it. After two pulses I hop to another frequency. Is it
> > possible to create this with only blocks, or I have to write the code
> > myself.
> > Can you give me your ideas how would you do that? Is using stream
> > tags the best idea here?
> > thank you.
> > _______________________________________________
> > Discuss-gnuradio mailing list
> > address@hidden
> >
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