Method and system for removing very low frequency noise from...

Details Method and system for removing very low frequency noise from... Method and system for removing very low frequency noise from...

2008-01-22

2008-01-22

Ramos-Feliciano, Eliseo (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C702S182000, C702S186000, C702S195000

Reexamination Certificate

active

07321845

ABSTRACT:
A method and system are disclosed for removing very low frequency noise from a time-based data set for use in data analysis of the time-based data set having a plurality of data points, the method comprising providing the time-based data set to be analyzed, determining a baseline value from at least a portion of the data set, smoothing the data set to diminish an effect of extraneous data points and obtain smoothed data, wherein the smoothing includes using a Fast Fourier Transform (FFT) algorithm to transfer the time-based data set into a frequency based data set, attenuating low frequencies of the frequency-based data set and using an inverse Fourier Transform (FFT) algorithm to transfer the attenuated frequency based data set into an attenuated time-based data set.

REFERENCES:
patent: 4634110 (1987-01-01), Julich et al.
patent: 5245665 (1993-09-01), Lewis et al.
patent: 5268938 (1993-12-01), Feig et al.
patent: 5517426 (1996-05-01), Underwood
patent: 6829538 (2004-12-01), de Kok
patent: 7027953 (2006-04-01), Klein
patent: 2005/0259767 (2005-11-01), Garmany et al.

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