System and method for detecting spikes in noisy signals
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United States of America Patent
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Jun 21, 2022
Grant Date -
Jan 10, 2019
app pub date -
Aug 23, 2016
filing date -
Aug 24, 2015
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Abstract
A method for determining a threshold for spike detection in a noisy signal in real-time is provided. The method includes estimating a current variability of noise in the noisy signal according to a measured instantaneous value and a window of previous instantaneous values using a sigma-delta control loop, determining the threshold based on the estimated variability of the noise; and repeating the steps to update the estimate of the variability of the noise and adjust the threshold in real-time as the noisy signal changes. A non-transitory computer-readable storage medium for executing the method on a processing unit, and a low-power digital system implementing the method are also provided.
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