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Re: RF signals are pure noise in Python implementation

From: Verónica Toro Betancur
Subject: Re: RF signals are pure noise in Python implementation
Date: Thu, 25 Nov 2021 18:47:39 +0200

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 <martin.braun@ettus.com> wrote:

have you maybe mismatched data types? Like, the real signals are fixpoint, but your Python is doing floating point?


On Thu, Nov 25, 2021 at 2:59 PM Verónica Toro Betancur <vetorobe@gmail.com> wrote:

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,

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