www.gusucode.com > 基于matlab编程(31,25)RS编码及解码源码程序 > 基于matlab编程(31,25)RS编码及解码源码程序/code/rs_decode_syndrome.m
% a function to calculate the syndrome polynomial accoding to the received % sequence 'r_x' function synd_x=rs_decode_syndrome(r_x) % 'G' is the generator polynomial G=[21 24 16 24 9 10 0]; T=[1,2,4,8,16,5,10,20,13,26,17,7,14,28,29,31,27,19,3,6,12,24,21,15,30,25,23,11,22,9,18]; s=zeros(1,6); for j=1:6 % use the function rs_poly(t,x) to calculate s(j)=r(a^j) % all calculations are in the GF(2^5) s(j)=rs_poly(r_x,T(j+1)); end synd_x=[1,s];