QUASI-CYCLIC UNIT MEMORY CONVOLUTIONAL-CODES

被引：20
|
作者：
JUSTESEN, J
PAASKE, E
BALLAN, M
机构：
[1] Institute of Circuit Theory and Telecommunication Technical University of Denmark, DK-2800, Lyngby
[2] Institute of Circuit Theory, Telecommunication Technical University of Denmark Telecon Denmark, Telegade 2, Taastrup
来源：
IEEE TRANSACTIONS ON INFORMATION THEORY | 1990年 / 36卷 / 03期
关键词：
D O I：
10.1109/18.54876
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Unit memory convolutional codes with generator matrices which are composed of circulant submatrices, are introduced. This structure facilitates the analysis as well as an efficient search for good codes. Equivalences among such codes and consider some of the basic structural properties are discussed. In particular, catastrophic encoders and minimal encoders are characterized and dual codes treated. Further, various distance measures are discussed and a number of good codes, some of which result from efficient computer search and some that result from known block codes are presented. © 1990 IEEE
引用
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页码：540 / 547
页数：8
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