Hello,
I worked on it, and I correct things in my python block and my grc file. It
works when I put QT GUI Time Sink blocks, than Histogramms block. You can
fin the update here :
https://github.com/Krounet/gnuradio-WSPR/tree/development/WSPR-Tx
Best Regards
Mathieu
Le ven. 23 févr. 2024 à 17:25, Croizer Mathieu <croizer.math...@gmail.com>
a écrit :
> Hello,
>
> I would like to simulate the simulation of a WSPR transmission with
> GNURADIO. First I created a python block for WSPR coding process. The
> output of my python block is connected to a Pack K Bits block to create
> packs of bytes of 8 bits. It is also connected to a QT GUI Histogramm, to
> verify if there is something at the output. The Pack K Bits block is also
> connected to a QT GUI Histogramm. When I launch my gnuradio file, The two
> histogramms show a pike at 0. So think I think there is nothing at the
> output of my python block. But, in my code I put some prints to show what
> happens at the output, and they indicates that there are zeroes and ones.
> So I don't understand what happens, and I need some Help.
>
> This is my python block work function :
>
> def work(self,input_items,output_items):
>
> """
> What do we do here ? :
>
> _ The Callsigns and the Location + Power are compressed in two
> integer N and M
> _ N is calculated with these equations :
> * N1 = [Ch1] -> [Chn] is the n character in decimal of the
> Callsigns modified by the function transform_Callsigns()
> * N2 = N1 * 36 + [Ch2]
> * N3 = N2 * 10 + [Ch3]
> * N4 = 27 * N3 + [Ch4] - 10
> * N5 = 27 * N4 + [Ch5] - 10
> * N = N6 = 27 * N5 + [Ch6] - 10
>
> _ M is calculated with these equations :
> * M1= (179 - 10 * [Loc1] - [Loc3]) * 180 + 10 * [Loc2] +
> [Loc4] -> [Locn] is the n character in decimal of the Location modified by
> the function transform_Location()
> * M = M1 * 128 + [Pwr] + 64 -> [Pwr] is the power in dBm
> """
> #time.sleep(5)
> codingN=self.transform_Callsigns()
> codingM=self.transform_Location()
> #creating the 88 elements array to encode. The array will be
> packed then in 11 8-bits bytes array c[0] to c[6] will contain the
> informations to transmit.c[6] will contain the 2 two las bit of M and is
> completed by zeroes. c[7] to c[10] is filled with zeroes
> #serializing N
> n_Serial=np.byte([bit for bit in codingN])
> #serializing M
> m_Serial=np.hstack((np.byte([bit for bit in
> codingM]),np.byte([0,0,0,0,0,0])))
> #creating c[7] to c[10]
> c7toc10bin=np.binary_repr(0,32)
> c7toc10=np.byte([bit for bit in c7toc10bin])
>
> #stacking the arrays
> bitstreams=np.hstack((n_Serial,m_Serial,c7toc10))
> #output_items[0]=bitstreams
> for x in range(len(bitstreams)):
> output_items[0]=bitstreams[x]
> print(output_items[0])
> #print("length of the Block Output: "+str(len(output_items[0])))
> return len(bitstreams)
>
> You can find all the code here :
> https://github.com/Krounet/gnuradio-WSPR/tree/development/WSPR-Tx
>
> Best Regards.
>
> Mathieu
>
