PERFORMANCE COMPARISON OF RECEIVERS IN A SIMPLE PARTIAL ERASURE MODEL

A simple partial erasure model based on the effective reduction Df the transition width in a magnetic recording system is presented. This mo del predicts nonlinear distortion accurately at high recording densiti es. This paper proposes several detection schemes incorporating this n onlinear model, and compares the performance with receivers designed f or a linear channel. Simulations show that the nonlinear equalized max imum likelihood (EML) receiver outperforms other detectors in a nonlin earity-dominant channel.