Regularized parameter adaptation
AssigneeSeagate Technology LLC
InventorsMarcus Marrow, Jason Bellorado
Life of this patent
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Abstract
An apparatus may include a circuit configured to process at least one input signal using a set of channel parameters. The circuit may adapt, using a regularized adaptation algorithm, a first set of channel parameters for use by the circuit as the set of channel parameters in processing the at least one input signal, the regularized adaptation algorithm penalizing deviations by the first set of channel parameters from a corresponding predetermined second set of channel parameters. The circuit may then perform the processing of the at least one input signal using the first set of channel parameters as the set of channel parameters.
Claims16
An apparatus comprising:
- a circuit configured to process at least one input signal using a set of channel parameters, the circuit further configured to:
- adapt, using a regularized adaptation algorithm, a first set of channel parameters for use by the circuit as the set of channel parameters in processing the at least one input signal, the regularized adaptation algorithm penalizing deviations by the first set of channel parameters from a corresponding predetermined second set of channel parameters, the regularized adaptation algorithm further including an adjustable parameter that scales the penalty for deviation by the first set of channel parameters from the second set of channel parameters;
- and
- perform the processing of the at least one input signal using the first set of channel parameters as the set of channel parameters.
A system comprising:
- a channel circuit including a Multiple-Input Single Output (MISO) equalizer and configured to process at least one input signal using a set of channel parameters being filter taps of the MISO equalizer;
- an adaptation circuit configured to:
- adapt, using a regularized adaptation algorithm, a first set of channel parameters for use by the channel circuit as the set of channel parameters in processing the at least one input signal, the regularized adaptation algorithm penalizing deviations by the first set of channel parameters from a predetermined corresponding second set of channel parameters, the regularized adaptation algorithm being a regularized least mean squares (LMS) adaptation algorithm or a regularized minimum mean squared error (MMSE) adaptation algorithm, and the regularized adaptation algorithm including an adjustable parameter that scales the penalty for deviation by the first set of channel parameters from the second set of channel parameters.
A method comprising:
- adapting, by a circuit configured to process at least one input signal using a set of channel parameters and using a regularized adaptation algorithm, a first set of channel parameters for use by the circuit as the set of channel parameters in processing the at least one input signal, the regularized adaptation algorithm penalizing deviations by the first set of channel parameters from a corresponding predetermined second set of channel parameters, the regularized adaptation algorithm further including an adjustable parameter that scales a penalty for deviation by the first set of channel parameters from the second set of channel parameters;
- and
- performing the processing of the at least one input signal using the first set of channel parameters as the set of channel parameters.
Dependencies are inferred from the claim text.