首页> 外国专利> The process for encoding and decoding data in a data communication system, channel encoding process for linked data in a data transmission system.Concatenated channel encoder, apparatus of channel encoding argued, encoder / decoder of the data adapted for use in a data communication system, and.Apparatus for encoding and decoding data in a data communication system

The process for encoding and decoding data in a data communication system, channel encoding process for linked data in a data transmission system.Concatenated channel encoder, apparatus of channel encoding argued, encoder / decoder of the data adapted for use in a data communication system, and.Apparatus for encoding and decoding data in a data communication system

机译：数据通信系统中的数据编码和解码过程，数据传输系统中的链接数据的信道编码过程。级联信道编码器，争用的信道编码设备，适用于数据通信系统的数据的编码器/解码器以及用于在数据通信系统中对数据进行编码和解码的设备

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"Process for encoding and decoding data in a data communication system for channel encoding process linked to data in a data transmission system.Concatenated channel encoder, apparatus of channel encoding argued, encoder / decoder of the data adapted for use in a data communication system, and.Apparatus for encoding and decoding data in a data communication system.A coding scheme using a code of the external connection linked Reed Solomon error and erasure, and an internal code decodificu00e1vel short of the maximum probability as a Viterbi code.The rate M / M + 1 of the internal code is adjusted on the side of the symbol m) Reed Solomon code.This technique of channel encoding argued is well suited for systems of data transmissions of packets of small size or variable.The technique can also be adapted for use in a data transmission system continuously.The present invention advantageously performs channel encoding argued without the need of a intercalador symbol.In addition, the present invention is simple to implement and thus consume much less space and power than the previous approaches of technique.The present invention not only eliminates the need for a intercalador symbol between the internal and external codes.As also plays a complexity of implementation drastically reduced the internal code Viterbi decoder.A realization of this invention comprises an internal code with block codes of length short codes convolucionais derived from restriction of short span.By using bits of tail in lattice in a Viterbi decoder comprising four decoders of four member having a maximum length corresponding to short.The internal code comprises preferably short block codes derived code convolucional perforated and non perforated, not systematic, four states (that is, restriction of extension (3).

机译：在数据通信系统中对数据进行编码和解码的过程，用于在数据传输系统中链接到数据的信道编码过程。级联的信道编码器，争用的信道编码设备，适用于数据通信的数据的编码器/解码器一种使用外部连接的码与里德·所罗门错误和擦除链接的编码，以及一种内部码的最大概率不足的维特比码的编码方案。内部代码的比率M / M +1在符号m）里德所罗门代码的一侧进行了调整。这种信道编码技术被认为非常适合小尺寸或可变数据包的数据传输系统。还可以适用于连续地在数据传输系统中使用。本发明有利地执行了所主张的信道编码，而无需插入符号。本发明易于实现，因此比以前的技术方法消耗的空间和功率少得多。本发明不仅消除了内部和外部代码之间的插入式符号的需要，还极大地降低了实现的复杂度。内部码维特比解码器。本发明的一个实现包括内部码，该内部码具有从短跨度的限制中得出的长度为短码的卷积码的短码。通过在维特比解码器中使用格中的尾部位，该维特比解码器包括四个解码器，四个解码器的最大长度内部代码优选地包括由短块代码导出的，卷积穿孔和非穿孔，非系统的四个状态的代码（即，扩展的限制（3））。

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公开/公告号BR0016728A

专利类型
公开/公告日2002-10-01

原文格式PDF
申请/专利权人 ENSEMBLE COMMUNICATIONS INC.;
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申请/专利号BR20000016728
发明设计人 ALOK KUMAR GUPTA;
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申请日2000-12-21
分类号H03M13/00;
国家 BR
入库时间 2022-08-22 00:46:06

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