New automatic equaliser employing modulo arithmetic
New automatic equaliser employing modulo arithmetic
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DOI:
10.1049/el:19710089
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发表时间:
1971-03
影响因子:
1.1
通讯作者:
M. Tomlinson
中科院分区:
文献类型:
--
作者:
M. Tomlinson
The limitations of present automatic and adaptive equalisers stem from the use of feedforward transversal filters. These drawbacks may be obviated by using a feedback transversal filter, the inverse filter, but this is only suitable for limited use since it can be an unstable circuit. It is shown that modulo arithmetic may be used in the inverse filter to eliminate completely the possibility of instability, and a very simple automatic or adaptive equalisation system is presented. Some interesting properties of the modulo inverse filter are included.