Interference reduction by step function removal
AssigneeIntel Corporation
InventorsStuart A. Golden, Naiel K. Askar
Life of this patent
Estimating the term…
Abstract
Correcting a signal offset may include observing a finite duration signal yn that comprises a representation of a mixture of a desired signal and an undesired signal. The undesired signal may include an offset component which may be modeled as comprising a step function u defined by unknown step function parameters. The unknown step function parameters may be estimated using, for example, a maximum likelihood method. Thereafter, yn may be corrected based on the estimated step function parameters.
Claims39
A method comprising:
- observing a finite duration signal yn that comprises a representation of a mixture of a desired signal and an undesired signal, the undesired signal comprising an offset component;
- modeling the offset component of the undesired signal as comprising a step function u defined by unknown step function parameters;
- estimating the unknown step function parameters;
- and
- adjusting yn based on the estimated step function parameters.
A system comprising:
- an observation circuit structured and arranged to observe a finite duration signal yn that comprises a discrete representation of a mixture of a desired signal and an undesired signal, the undesired signal comprising an offset component;
- a modeling circuit structured and arranged to model the offset component of the undesired signal as comprising a step function u defined by unknown step function parameters;
- an estimating circuit structured and arranged to determine estimated step function parameters representative of the unknown step function parameters;
- and
- a correction circuit structured and arranged to correct yn based on the estimated step function parameters.
A computer program stored on a computer readable medium or a propagated signal, the computer program comprising:
- an observation code segment configured to cause a computer to observe a finite duration signal yn that comprises a representation of a mixture of a desired signal and an undesired signal, the undesired signal comprising an offset component;
- a modeling code segment configured to cause the computer to model the offset component of the undesired signal as comprising a step function u defined by unknown step function parameters;
- an estimating code segment configured to cause the computer to determine estimated step function parameters representative of the unknown step function parameters;
- and
- a correcting code segment configured to cause the computer to correct yn based on the estimated step function parameters.
A processor which:
- observes a finite duration signal yn that comprises a representation of a mixture of a desired signal and an undesired signal, the undesired signal comprising an offset component;
- models the offset component of the undesired signal as a step function u defined by unknown step function parameters;
- determines estimated step function parameters;
- and
- corrects the signal yn based on the estimated step function parameters.
Dependencies are inferred from the claim text.