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Methods for improving response time, robustness and user comfort in continuous estimation of biophysiological rates
Methods for improving response time, robustness and user comfort in continuous estimation of biophysiological rates
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机译:在连续估算生物生理学速率时改善响应时间,鲁棒性和用户舒适度的方法
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摘要
A computer-implemented method for estimating biophysiological rates using the Hilbert transform includes receiving a quasiperiodic data stream from a biophysiological sensor, and removing at least a portion of an offset from the quasiperiodic data stream to provide a smoothed data stream by filtering the quasiperiodic data stream through a bandpass filter and phase compensating the filtered quasiperiodic data stream. The method also includes transforming the smoothed data stream into an analytic data stream using a Hilbert transform approximation and calculating the time derivative of the phase angle of the analytic data stream, where the time derivative is a frequency of the quasiperiodic data stream. The method further includes providing an output data stream derived from the frequency.
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