Identification of nonlinear write effects using pseudorandom sequences

@inproceedings{Palmer1987IdentificationON,
  title={Identification of nonlinear write effects using pseudorandom sequences},
  author={D. Palmer and Pablo A. Ziperovich and Roger Wood and Thomas D. Howell},
  year={1987}
}
Nonlinear distortion causes significant degradation at high linear recording densities. Nonlinear distortion cannot generally be corrected by equalization and is thus particularly important to correctly identify and quantify. A technique is described which is easily applied, clearly separates linear from nonlinear effects, can be related to the underlying physical processes, and provides a good basis for modeling the channel. The technique involves the recording of a binary pseudorandom… CONTINUE READING

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