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  • 幫我把下面的文字翻譯成英文,謝絕機(jī)器翻譯~!

    幫我把下面的文字翻譯成英文,謝絕機(jī)器翻譯~!
    卷積碼是一類(lèi)很好的信道編碼,是與分組碼相對(duì)應(yīng)的另一大類(lèi)編碼,卷積碼與分組碼的不同之處在于其編碼器是有記憶的.
    卷積碼的譯碼算法可以分為代數(shù)譯碼和概率譯碼,代數(shù)譯碼基于代數(shù)結(jié)構(gòu),概率譯碼有序列譯碼與維特比譯碼.
    在本論文中,根據(jù)編碼器的關(guān)系實(shí)現(xiàn)卷積碼的編碼,用維特比譯碼算法實(shí)現(xiàn)卷積碼的解碼.維特比譯碼算法采用最大似然算法,能夠達(dá)到最佳的誤碼率,運(yùn)算量的大小也完全能夠被接受.維特比譯碼算法通過(guò)比較規(guī)定時(shí)刻各個(gè)支路中的路徑需求最短距離,得到幸存路徑,然后在譯碼結(jié)束時(shí)選擇最短的一條,反推這條幸存路徑得到相應(yīng)的譯碼輸出.
    本論文是用VC實(shí)現(xiàn)一個(gè)給定編碼方案的卷積碼編碼及其維特比譯碼.并通過(guò)實(shí)例加入的隨機(jī)噪聲來(lái)驗(yàn)證維特比譯碼算法的糾錯(cuò)能力.
    英語(yǔ)人氣:818 ℃時(shí)間:2020-05-01 11:49:20
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    系統(tǒng)提示我的答案和別人重復(fù)了...
    Convolution code is a kind of very good channel coding,and code is another categories corresponding coding,convolution code block codes and the difference in the encoder is a memory.
    Convolution code of decoding algorithm can be divided into algebraic decode and decoding,based on the probability of algebraic structures,algebraic decode sequences decoding and decoding probability there than victor decode.
    In this thesis,according to the order relation of the encoder,the coding convolution code with victor than decoding algorithm realization of convolution code.Victor than decoding algorithm using the maximum likelihood algorithm can achieve the best,the size of the computation of ber completely also can be accepted.Victor than decoding algorithm through comparing various branch of path stipulated time,get the demand and then decodes survived path in the end,choose one of the shortest path that survived the corresponding coding output.
    This paper is a given using VC coding scheme of convolution code coding and decoding than victor.Examples of add random noise to verify the error decoding algorithm,victor than ability.
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