Noise predictive filter adaptation for inter-track interference cancellation

摘要

Systems, methods, devices, circuits for data processing, and more particularly to systems and methods for adapting noise predictive filters for inter-track interference cancellation in a data processing system.

主权项

1. A data processing system comprising:
a first noise predictive filter circuit operable to filter digital data; a data detector circuit operable to apply a data detection algorithm to an output of the first noise predictive filter circuit to yield a detected output; an inter-track interference cancellation circuit operable to reduce inter-track interference in the digital data based in part on the first detected output to yield cleaned data; a second noise predictive filter circuit operable to filter the cleaned data; and an adaptation circuit operable to generate filter coefficients for the second noise predictive filter circuit based in part on the cleaned data and on a signal derived from an output of the second noise predictive filter circuit.