UNB ECE4253 Digital Communications
Department of Electrical and Computer Engineering - University of New Brunswick, Fredericton, NB, Canada

Galois Field GF(2) Calculator


Model C-172 POLYNOMIAL CALCULATOR

A:

B:

A + B A - B A × B A / B

Discussion  Polynomials  MATLAB

Answer: (division)

 110011100
----------- = 100101, Remainder = 101
   1101

Detailed Calculation

          100101
     -----------
1101 ) 110011100
       1101
       ----
        00111100
          1101
          ----
           01000
            1101
            ----
            0101

MATLAB Example

Calculations in GF(2) are performed by MATLAB functions found within the Communications Toolbox.

>> a = gf( [1 1 0 0 1 1 1 0 0] );

>> b = gf( [1 1 0 1] );

>> [q,r] = deconv(a,b) % deconvolution is equivalent to division

q = GF(2) array.

Array elements =

       1      0      0      1      0      1

r = GF(2) array.

Array elements =

       0      1      0      1


2019-09-21 17:08:41 ADT
Last Updated: 2010-04-29
Richard Tervo [ tervo@unb.ca ] Back to the course homepage...