DocumentCode
1341715
Title
History of equalization 1860-1980
Author
Falconer, David
Author_Institution
CARLETON UNIVERSITY
Volume
49
Issue
10
fYear
2011
Firstpage
42
Lastpage
50
Abstract
Operators of the first transatlantic telegraph cable in 1858, and subsequent cables from the mid-1860s, noticed that they had to transmit Morse code dots and dashes very slowly to be understood at the other end.1 This phenomenon, due to smearing out of pulses by the capacitive effects of very long cables, had been predicted by William Thomson (more about him below), and was one of the first instances of the need for equalization of digital signals.
Keywords
Decision feedback equalizers; History; Research and development; Signal processing; Telegraphy; Transversal filters;
fLanguage
English
Journal_Title
Communications Magazine, IEEE
Publisher
ieee
ISSN
0163-6804
Type
jour
DOI
10.1109/MCOM.2011.6035816
Filename
6035816
Link To Document