Turbo code , also named parallel concatenated convolution code , was presented by c . berrou , a . glavieux and p . thifimajshiwa in icc ' 93 Turbo码，又称并行级联卷积码( pccc ) ，是由c . berrou等在1993年icc会议上提出的。
The channel coding is one of important topics in communication research , and it usually falls into two classes : block codes and convolutional codes 信道编码是通信领域研究的重要课题之一,其主要分为分组码与卷积码。
The implementation of the convolutional code is also discussed in this paper . finally , the flow chart of the algorithms of the system is described 最后，在介绍了差错控制编码的原理后讨论了如何实现卷积码的编解码算法。
In the subject , the error - control project consisting of convolutional coder and viterbi decoder is adopted . the viterbi decoding algorithm is studied in the paper 本课题采用( 2 ， 1 ， 7 )非系统卷积码和维特比译码组成的差错控制系统。
Viterbi decoding algorithm has been widely used and developed in full - fledge , therefore , it ’ s easy to find a lot of materials and references on it 卷积码的维特比译码方法比较常见,应用范围广泛,发展也非常成熟,因而参考文献和相关资料很多。
The tcq algorithm takes advantage of convolution code , and enlarges the euclidean distances among quantized data by expanding data dimensions Tcq算法充分利用了卷积码的特性，采用信号空间扩展的方法来增大量化信号的欧式距离，从而达到提高量化性能的目的。
The thesis mainly focuses on the encoding and decoding to the systemic convolutional code with programming language , which is prescribed in the intelsat iess 309 standard 本文主要针对intelsatiess309协议标准中所采用的系统卷积码,仿真并编程实现其编码和译码。
Comparisons between the above four vlsi algorithms are fulfilled at last . a viterbi decoder at the information speed of 300mbps for tcm - 8psk system is designed and realized in fpga 完成了信息速率300mbps的tcm - 8psk卷积码的viterbi译码器的设计,并在大规模fpga上实现。
In the meantime , analogue filterings and digital filterings are used to resist interferences . besides , wrapped product codes and intertexture codes are used to reduce transmission errors 为了减少传输的差错，本系统采用卷积码和交织码相结合的方法，可以有效的进行差错控制。
In channel decoding , crc and interleave are reversible in mathematics . the decoding of rcpc is using viterbi decoding after filling the deleted bits ’ position with zero 在信道解码过程中, crc和交织在数学上都是可逆的, rcpc的译码是先将删除的位置补零之后再对卷积码使用viterbi译码。
