Also known as Convolution code
type of error-correcting code using convolution
Article · 中文
卷積碼(英語:convolution code)是頻道編碼(channel coding)技術的一種,在電信領域中,屬於一種糾錯碼(error-correcting code)。相對於分組碼,卷積碼維持頻道的記憶效應(memory property)。卷積碼的由來,是因為輸入的原始訊息資料會和編碼器(encoder)的脈衝響應(impulse response)做卷積運算。卷積碼具有以下特性: * 一段m字元的訊息(m字元的二進位元字串)會被編碼轉換成n字元的符號,m/n即是編碼率(code rate,n ≥ m)
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