function?[fratioaverage_rate_decode]=decode_fun（en_msg）
%-------------------------------------------------------------------------%
%-------------------------------解碼準備-----------------------------------%
%-------------------------------------------------------------------------%
global?Gmatrix;
load?k;
load?N;
global?sg;
global?fg;
global?msg;
de_msg=ones（1K）*（-1）;
copymat=sparse（Gmatrix）;
%復制一個生成矩陣用來解碼；
decode_count=0;
%解碼節點的個數
receive_msg=en_msg;?
fail=1;
flag=0;


%-------------------------------------------------------------------------%
while?flag==0
%-------------------------------------------------------------------------%
for?i=1:N
????cloc=（find（copymat（:i）））;
????if?length（cloc）==1????%cloc標記度為1的節點
????????if?de_msg（cloc）==-1?????????%未賦過值
%-------------------------------------------------------------------------%
????????????fail=1;
%-------------------------------------------------------------------------%
????????????de_msg（cloc）=receive_msg（i）;????????%賦值
????????????decode_count=decode_count+1;???%解碼個數+1
????????????
????????????if?decode_count==K??%全部解碼
????????????????if?de_msg==msg;
????????????????????sg=sg+1;
????????????????????flag=1;?
????????????????????disp（‘access‘）;
????????????????????[fratioaverage_rate_decode]=fixG_fun（1）;
????????????????end
????????????end
????????????if?flag==0
????????????copymat（cloci）=0;?????????????%矩陣中的元素標記為0
????????????sloc=（find（copymat（cloc:）））;?%標記G矩陣中與信息比特s相連的校驗比特c
????????????scount=length（sloc）;?
????????????
????????????for?j=1:scount
????????????receive_msg（sloc（j））=xor（receive_msg（sloc（j））de_msg（cloc））;
????????????%信息節點值加到編碼節點
????????????copymat（clocsloc（j））=0;???????????
????????????end
???????????end
????????end
%-------------------------------------------------------------------------%????????
????else?fail=fail+1;
????????if?（flag==0）&&（fail>N）
????????????disp（‘fail‘）;
????????????fg=fg+1;
????????????average_rate_decode=0;
????????????fratio=1;
????????????flag=1;break;
????????end
%-------------------------------------------------------------------------%
????end????
end

end

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????2088??2009-05-18?11:17??LT\decode_fun.asv

?????文件???????2242??2009-05-18?14:21??LT\decode_fun.m

?????文件???????4405??2009-05-18?13:19??LT\fixG_fun.asv

?????文件???????4405??2009-05-18?13:23??LT\fixG_fun.m

?????文件?????334448??2009-05-24?11:10??LT\Gmat_optN11000best.mat

?????文件????????175??2009-05-18?14:23??LT\k.mat

?????文件???????4473??2009-05-18?13:19??LT\LT_TEST.asv

?????文件???????4596??2009-05-22?15:12??LT\LT_TEST.m

?????文件????????175??2009-05-18?14:23??LT\N.mat

?????文件???????2198??2009-05-18?13:49??LT\N1100\decode_fun1000.asv

?????文件???????2250??2009-05-18?14:16??LT\N1100\decode_fun1000.m

?????文件???????4350??2009-05-18?13:34??LT\N1100\fixG_fun1000.asv

?????文件???????4427??2009-05-19?09:34??LT\N1100\fixG_fun1000.m

?????文件??????21589??2009-05-19?12:12??LT\N1100\Gmat_optN1100（2）.mat

?????文件??????24570??2009-05-18?15:23??LT\N1100\Gmat_optN1100（5%）best.mat

?????文件????????175??2009-05-19?09:36??LT\N1100\k.mat

?????文件???????4537??2009-05-18?14:29??LT\N1100\LT_TEST1000.asv

?????文件???????4594??2009-05-22?15:10??LT\N1100\LT_TEST1000.m

?????文件????????175??2009-05-19?09:36??LT\N1100\N.mat

?????文件????????102??2009-05-19?09:34??LT\N1100\N1100.txt

?????文件?????????86??2009-05-25?10:37??LT\N11000.txt

?????文件???????2250??2009-05-18?14:20??LT\N4400\decode_fun4000.m

?????文件???????4457??2009-05-25?10:58??LT\N4400\fixG_fun4000.m

?????文件?????118439??2009-05-25?10:53??LT\N4400\Gmat_optN4400best.mat

?????文件????????175??2009-05-25?11:02??LT\N4400\k.mat

?????文件???????2578??2009-05-20?09:42??LT\N4400\LT_520\LT\decode_fun.m

?????文件???????1461??2009-05-20?10:01??LT\N4400\LT_520\LT\findR_fun.m

?????文件???????6077??2009-05-20?12:22??LT\N4400\LT_520\LT\fixG_fun.m

?????文件????????175??2009-05-22?09:24??LT\N4400\LT_520\LT\k.mat

?????文件??????50238??2009-05-23?20:05??LT\N4400\LT_520\LT\LT_520.matl

............此處省略15個文件信息