H - Electricity – 04 – L
Patent
H - Electricity
04
L
333/27
H04L 25/03 (2006.01) H04B 3/04 (2006.01) H04L 27/01 (2006.01)
Patent
CA 1211515
18 ABSTRACT: An adaptive equalizer arrangement for digital transmission system comprises at the output of the trans- mission channel a first in-phase path and in parallel with this first path, a second quadrature path, both paths being of the non-recursive transversal filter type having n branches and (n-1) delay circuits between the inputs of these branches, each of these n branches com- prising, arranged in series, a mixer, a lowpass filter, a multiplier, and having their outputs connected to an adder which is followed by a sampling circuit and there- after by a comparator circuit to decide the symbols (âk;?k) to be transmitted from the outputs of these paths. The arrangement also comprises a third control path which comprises two subtracting circuits to deter- mine the differences (e'k;e"k) between the signals before (Xk;Yk) and after decision (âk;?k) and a control circuit of a voltage-controlled oscillator, 2n phase s ifters and 2n multipliers.
454069
Bonnerot Georges
Desperben Lydie
Moridi Said
Sari Hikmet
Bonnerot Georges
Desperben Lydie
Moridi Said
Sari Hikmet
Van Steinburg C.e.
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