SYSTEMS AND METHODS OF DETERMINING HEART-RATE AND RESPIRATORY RATE FROM A RADAR SIGNAL USING MACHINE LEARNING METHODS
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United States of America Patent
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Apr 1, 2021
app pub date -
Sep 30, 2019
filing date -
Sep 30, 2019
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A computer-implemented method for determining a heart rate and respiratory rate from a radio frequency signal comprises inputting a radio frequency signal obtained from a test subject into a neural network. The method further comprises training the neural network using the radio frequency signal and extracting a heart rate and a respiratory rate from the radio frequency signal using the neural network. Further, the method comprises comparing the heart rate and the respiratory rate extracted from the radio frequency signal to a verifiable heart rate and verifiable respiratory rate for the test subject to compute an error measure. Finally, the method comprises using the error measure to apply back propagation to adjust front end parameters for one or more layers of the neural networks to improve a prediction accuracy of the neural network.
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