Method to linearize the output from an ADC
AssigneeNXP B.V.
InventorsAndries Pieter Hekstra, Lucien Johannes Breems, Robert Rutten
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Abstract
A method is disclosed of compensating the output of an ADC for non-linearity in the response of the ADC. The method comprises converting an analog input signal to uncorrected digital ADC output samples, applying a vector of correction variables to each of a block of uncorrected ADC output samples to provide a block of corrected ADC samples, and iteratively minimizing a measure of the spectral flatness of the block of corrected ADC samples with response to the vector of correction variables.
Claims12
A method of compensating an output of an Analog-to-Digital Converter (ADC) for non-linearity in a response of the ADC, the method comprising:
- converting an analog input signal to uncorrected digital ADC output samples;
- applying a vector of correction variables to each of a block of the uncorrected digital ADC output samples and producing a block of corrected ADC samples;
- and
- iteratively minimizing a measure of a spectral flatness of the produced block of corrected ADC samples with respect to the vector of correction variables.
Dependencies are inferred from the claim text.