Re: calculate SNR and watch a binary file

[Markus Feldmann]

Rob Mahurin schrieb:

> These files came from some analog-to-digital converter?  If you look  
> at them with hexdump, there is stuff that looks like data only in the  
> first 200 bytes or so.  The rest of the file looks likes zeros and  
> the occasional 0x80bf.  I wouldn't expect the data read from these  
> files to have a meaningful Fourier transform.
>
> Cheers,
> Rob
The data can be watched with my method, but not be plotted.
I do not know how to collect the complex values and bits ?

Ok, here is a clipping from the data at the beginning:
       0 +     0i
       0 +     0i
      -1 +     0i
       0 -     1i
     -13 +     2i
      65 -    32i
    -183 +    98i
     412 -   233i
    -831 +   478i
    1572 -   918i
   -3050 +  1745i
    8314 -  4139i
  -12548 -  5491i
    3899 + 10329i
    3523 -  2748i
   -1791 +  1379i
     951 -   738i
    -484 +   378i
     219 -   176i
     -84 +    69i
      19 -    20i
       0 +     0i
       0 -     1i
       0 +     0i
       0 -     1i
       0 +     0i
       0 -     1i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 +     0i
       0 -     1i
       0 +     0i
      -1 -     1i
       0 +     0i
      -1 -     1i
       0 +     0i
      -1 -     1i
       0 +     0i
      -1 +     0i
       0 -     1i
       0 +     0i
      -1 -     1i
       0 +     0i
      -1 +     0i
       0 -     1i
      -1 +     0i

How can i collect bits from the I or Q Signal ?
And i do not know whether these are 16 bit samples
or 32 bit ?
And i do not know where is the beginning of the
samples ?
Maybe the curious values at the beginning is the
start point ?

Regards Markus