Multilevel sequences and line codes
作者:
L.Botha,
H.C.Ferreira,
I.Broere,
期刊:
IEE Proceedings I (Communications, Speech and Vision)
(IET Available online 1993)
卷期:
Volume 140,
issue 4
页码: 255-261
年代: 1993
DOI:10.1049/ip-i-2.1993.0038
出版商: IEE
数据来源: IET
摘要:
Markov models and values of channel capacity are presented for multilevel sequences with the number of signal levels ranging from four to seven, subject to three classes of channel-input restrictions. Several new line codes suitable for use in digital-communication systems are presented, together with their error-propagation properties and power spectral densities. These codes satisfy restrictions regarding runlength and zero-frequency components.
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