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作者机构:Dept. of Electr. Eng. Saskatchewan Univ. Saskatoon Sask. Canada
出 版 物:《ELECTRONICS LETTERS》 (电子学快报)
年 卷 期:1990年第26卷第14期
页 面:1077-1079页
核心收录:
学科分类:0808[工学-电气工程] 0809[工学-电子科学与技术(可授工学、理学学位)] 08[工学]
主 题:2.048 Mbit/s 512 bit PCM systems channel error rate tolerance combination of two seven bit syncwords digital communication systems frame synchronisation multiplexing format pulse-code modulation receivers robust framing detector robust framing receiver search time storing 512 bits synchronisation telephone systems two syncword system
摘 要:A faster, more robust framing detector for the multiplexing format of 2.048 Mb/s PCM systems is proposed. Existing framing detectors look for a seven bit syncword. By simply storing 512 bits and searching for the combination of two seven bit syncwords, the search time is improved by a factor of four and operation is permissible with a greatly increased channel error rate.