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)

 11000101
---------- = 11111, Remainder = 11
   1010

Detailed Calculation

          11111
     ----------
1010 ) 11000101
       1010
       ----
        1100101
        1010
        ----
         110101
         1010
         ----
          11101
          1010
          ----
           1001
           1010
           ----
           0011

MATLAB Example

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

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

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

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

q = GF(2) array.

Array elements =

       1      1      1      1      1

r = GF(2) array.

Array elements =

       0      0      1      1


2021-09-22 09:30:03 ADT
Last Updated: 2010-04-29
Richard Tervo [ tervo@unb.ca ] Back to the course homepage...