Remove_Annual

Version 1.0.0.0 (2.42 KB) by Tony Sturges
Removes the power at 12.0 mo and harmonics
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Updated 30 Mar 2016

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This routine computes the fft of the input signal and removes power at the annual (or any specified frequency) by replacing the power at that frequency with the average of terms on both sides; this is done in the sine and cosine terms so as to average the power and the phase.

Cite As

Tony Sturges (2024). Remove_Annual (https://www.mathworks.com/matlabcentral/fileexchange/19851-remove_annual), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2008a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.0.0.0

It is crucial that the number of data points allow the annual frequency to fall on one of the FFT frequencies.