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Joint channel and echo impulse response shortening on digital subscriber lines

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1 Author(s)
Al-Dhahir, N. ; Corp. Res. & Dev., Gen. Electr. Co., Schenectady, NY, USA

A new scheme for joint shortening of two long impulse responses using a single finite impulse response (FIR) equalizer is presented. The optimum settings, in the mean square error (MSE) sense, of the equalizer and the two (unit-tap constrained) shortened impulse responses are derived. The main application of interest is joint shortening of the channel and echo impulse responses for high-speed transmission on digital subscriber lines.

Published in:

Signal Processing Letters, IEEE  (Volume:3 ,  Issue: 10 )