How to visualise Galois Vector Array in Matlab

Question

I have this data, (255x1 gf). It is FFT processed signal data. I want to visualise it. I do not find any conversion function back to integer or double, or any plotting function for Galois Vector Array.

I found that you can run fftshift to the data which gives an array, probably the data. I run

sami = fftshift(YDataVector)

I get

sami = GF(2^8) array. Primitive polynomial = D^8+D^4+D^3+D^2+1 (285 decimal)

Array elements = 

          25
         232
          36
         124
         220
         141
         161
         111
          56
         190
         209
         205
         ...

How can you get the array elements to an integer list? I see now the values as integer, but they are still in the variable sami as gf format.

How can you plot or visualise Galois Vector in Matlab?

Answer 1

The field array elements of a gf Galois field object are stored in the attibute x:

>> x = sami.x;
>> whos x
  Name        Size            Bytes  Class     Attributes

  x         255x1              1020  uint32