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    • 3. 发明公开
    • Concatenated block and convolution encoder-decoder
    • Kodierer und Dekodierer mit verketteter Block- und Konvolutionalkodierung。
    • EP0551646A2
    • 1993-07-21
    • EP92121843.4
    • 1992-12-23
    • MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    • Furushima, SusumuAsano, Nobuo
    • H03M13/00H04L1/00
    • H04L1/0065H03M13/29H04L1/0054H04L1/0057
    • Disclosed is an error correction coding and decoding apparatus carrying out block decoding of coded information data on the basis of a generator polynomial. On the side of a transmitting station (18), each frame of information data is coded into a block coded data by a block encoder (19) by the use of a generator polynomial G(x), and, after adding a tail bit to the coded data, the data is coded by a convolutional encoder (20) into a convolutional coded data and transmitted. On the side of a receiving station (22), the received convolutional coded data is decoded in a Viterbi decoder (24) in a reverse order by means of trace back, and the decoded data is then subjected to block decoding by a block decoder (25) by the use of a reciprocal polynomial G'(x) that is the reciprocity of the generator polynomial G(x) used in the block encoder, thereby minimizing an undesirable processing delay due to the trace back.
    • 公开了一种基于生成多项式对编码信息数据进行块解码的纠错编码和解码装置。 在发送站(18)侧,通过使用生成多项式G(x),通过块编码器(19)将信息数据的每一帧编码成块编码数据,并且在将尾位加到 编码数据,数据由卷积编码器(20)编码成卷积编码数据并发送。 在接收站(22)侧,利用跟踪返回,以相反的顺序将所接收的卷积编码数据在维特比解码器(24)中进行解码,然后将解码后的数据通过块解码器 通过使用在块编码器中使用的生成多项式G(x)的互易性的互逆多项式G'(x),从而最小化由于回溯引起的不期望的处理延迟。