IEEE Transactions on Signal Processing, vol. 52, no. 1, pp. 297-301, Jan. 2004.

Infinite Length Results and Design Implications for Time-Domain Equalizers

Rick K. Martin (1), Ming Ding (2), Brian L. Evans (2), and C. Rick Johnson, Jr. (1)

(1) Department of Electrical and Computer Engineering, Rhodes Hall, Cornell University, Ithaca, NY 14853 USA -

(2) Department of Electrical and Computer Engineering, Engineering Science Building, The University of Texas at Austin, Austin, TX 78712-1084 USA -

Draft of Paper

ADSL Research at Cornell - ADSL Research at UT Austin


We show that maximum shortening SNR TEQs are often nearly symmetric. Constraining the TEQ to be symmetric causes only a 3% loss in bit rate. Symmetric TEQs have greatly reduced design and implementation complexity. We also show that for infinite length TEQs, minimum mean squared error target impulse responses have all zeros on the unit circle, which can lead to poor bit rate performance.

COPYRIGHT NOTICE: All the documents on this server have been submitted by their authors to scholarly journals or conferences as indicated, for the purpose of non-commercial dissemination of scientific work. The manuscripts are put on-line to facilitate this purpose. These manuscripts are copyrighted by the authors or the journals in which they were published. You may copy a manuscript for scholarly, non-commercial purposes, such as research or instruction, provided that you agree to respect these copyrights.

Last Updated 03/10/06.