Equalisation of twisted-pair channels via optimum filtering and noise prediction

The transmitting and receiving Þlters for digital transmission over a twisted-pair channel a¤ected by additive white Gaussian noise and cross-talk are jointly optimized by maximizing the signal-to-noise ratio at the decision point under the constraint of zero inter-symbol interference. A whitening section is then properly designed and cascaded to the optimum receiving Þlter to reduce the correlation between the samples of the colored disturbance, thus obtaining enhanced performance. From the proposed analysis the basic design parameters can be easily computed to optimize the resulting system performance.