Title :
Joint channel and echo impulse response shortening on digital subscriber lines
Author :
Al-Dhahir, Naofal
Author_Institution :
Corp. Res. & Dev., Gen. Electr. Co., Schenectady, NY, USA
Abstract :
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.
Keywords :
FIR filters; digital communication; echo suppression; equalisers; interference suppression; least mean squares methods; subscriber loops; telecommunication channels; transient response; FIR equalizer; channel impulse response; digital subscriber lines; echo impulse response; finite impulse response equalizer; high-speed transmission; impulse response shortening; mean square error; Autocorrelation; Crosstalk; DSL; Equalizers; Finite impulse response filter; Impedance; Mean square error methods; Performance loss; Transceivers;
Journal_Title :
Signal Processing Letters, IEEE
