資源簡介
卷積編解碼,實現刪余操作,多項式為【171,133】,約束長度為7,可直接用。也有其他形式的多項式,需要自己更改

代碼片段和文件信息
function?[punc_patt?punc_patt_size]?=?get_punc_params(code_rate)
%?打孔參數
if?strcmp(code_rate‘R3/4‘)?????????%?六個刪除兩個,由1/2得到3/4
???%?R=3/4?Puncture?pattern:?[1?2?3?x?x?6]?x?=?punctured?
???punc_patt=[1?2?3?6];
???punc_patt_size?=?6;
elseif?strcmp(code_rate?‘R2/3‘)????%?四個刪除一個,由1/2得到2/3
???%?R=2/3?Puncture?pattern:?[1?2?3?x]?x?=?punctured?
???punc_patt=[1?2?3];?
???punc_patt_size?=?4;
elseif?strcmp(code_rate?‘R1/2‘)????%?標準編碼器碼流,不必打孔
???%?R=1/2?Puncture?pattern:?[1?2?3?4?5?6]?x?=?punctured?
???punc_patt=[1?2?3?4?5?6];
???punc_patt_size?=?6;
else
???error(‘Undefined?convolutional?code?rate‘);
end
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????906??2001-12-04?23:52??rx_depuncture.m
?????文件????????740??2004-05-23?09:04??tx_puncture.m
?????文件????????665??2004-05-23?09:06??get_punc_params.m
-----------?---------??----------?-----??----
?????????????????2311????????????????????3
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