CIRCUITS, CHIPS, SYSTEMS AND METHODS FOR ELIMINATING RANDOM PERTURBATION
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United States of America Patent
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Issued Date -
Apr 11, 2024
app pub date -
Dec 3, 2023
filing date -
Aug 10, 2021
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Abstract
Embodiments of the disclosure provide a circuit, chip, system, and method for eliminating random perturbation. The circuit includes a weight calculating module for receiving digital signals and random perturbation digital quantity, using least mean square error algorithm to calculate weight deviation iteration coefficient based on digital signal and digital quantity, and updating perturbation weight in real-time according to weight deviation iteration coefficient; and a perturbation eliminating module for eliminating perturbation signal in output digital signal of quantizer according to perturbation weight updated in real-time and updating perturbation weight in real-time according to weight deviation iteration coefficient, and then calculating current perturbation weight in real time to realize self-calibration of perturbation weight. Even if the manufacturing process or working environment of the current chip changes, perturbation weight can be dynamically adjusted, to ideally eliminate perturbation signal in digital signal.
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