Adaptive equalization for recording systems using partial-response signaling.
摘要
<p>The channel characteristics of magnetic-disk storage devices vary with track radius. An adaptive 3-tap transversal equalizer that compensates these variations for systems using partial-response signaling is presented. The equalizer coefficients are updated by applying a procedure that is related to the recursive least-squares algorithm. This new updating procedure does not require multiplications and is well suited for high-speed implementation. Results obtained by computer simulations and measurements with a prototype have shown that the proposed adaptive equalizer can effectively compensate variations in magnetic-disk channel characteristics with track radius.</p>
申请公布号
EP0363551(A1)
申请公布日期
1990.04.18
申请号
EP19880810705
申请日期
1988.10.17
申请人
INTERNATIONAL BUSINESS MACHINES CORPORATION
发明人
DOLIVO, FRANCOIS B., DR.;OELCHER, SEDAT, DR.;RUNGELER, ANDREAS, DR.;SCHOTT, WOLFGANG HANS, DR.