%%%%%%%%%%%RS譯碼

function?m_xo=decoder（r_xnnkkmmttm_xialpha_toindex_ofgxhx）

disp（‘伴隨多項式：‘）
%%%%%%%%%%%%%%%計算伴隨多項式S=H*R???????????calculate?the?syndrome?polynomial?accoding?to?the?received?sequence?‘r_x‘
%?all?calculations?are?in?the?GF（2^m）
?s=zeros（1nn-kk）;????%n-k個校正子（伴隨式）
for?j=1:nn-kk
???s（j）=rs_poly（r_xalpha_to（j+1）nnalpha_toindex_of）;???%?use?the?function?rs_poly（tx）?to?calculate?s（j）=r（a^j）
end
synd_x=[1s]
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
disp（‘Press?any?key?to?continue...‘）
pause
%?
%?
disp（‘錯誤位置多項式：‘）
%%%%%%%%%%%%%%%%%?用迭代算法?計算錯誤位置多項式??????這一步也是最復(fù)雜的一步，也是決定譯碼速度的主要因素。
sigma=zeros（nn-kk+2nn-kk+1）;?%sigma矩陣用于記錄錯誤多項式?，最后一行為最終結(jié)果。
sigma（11）=1;
sigma（21）=1;
D=zeros（1nn-kk+2）;??%為錯誤多項式?的次數(shù)
D（1）=0;
D（2）=0;
d=zeros（1nn-kk

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2014-02-26?16:00??RSmatlab\
?????文件?????????590??2014-02-26?16:00??RSmatlab\rs_rev.m
?????文件?????????616??2014-02-26?16:00??RSmatlab\rs_rev.asv
?????文件?????????323??2014-02-26?16:00??RSmatlab\rs_poly.m
?????文件?????????688??2014-02-26?16:00??RSmatlab\rs_mul.m
?????文件?????????669??2014-02-26?16:00??RSmatlab\rs_mul.asv
?????文件????????1379??2014-02-26?16:00??RSmatlab\rs_main.m
?????文件????????6902??2014-02-26?16:00??RSmatlab\rs_main.asv
?????文件?????????379??2014-02-26?16:00??RSmatlab\rs_add.m
?????文件????????6348??2014-02-26?16:00??RSmatlab\other.m
?????文件?????????520??2014-02-26?16:00??RSmatlab\main.asv
?????文件????????6236??2014-02-26?16:00??RSmatlab\generate.m
?????文件????????5825??2014-02-26?16:00??RSmatlab\generate.asv
?????文件?????????955??2014-02-26?16:00??RSmatlab\encode.m
?????文件?????????863??2014-02-26?16:00??RSmatlab\encode.asv
?????文件????????5701??2014-02-26?16:00??RSmatlab\decoder.m
?????文件????????5741??2014-02-26?16:00??RSmatlab\decoder.asv
?????文件????????2807??2014-02-26?16:00??RSmatlab\decode.asv