Interactive Resolution Enhancement

Mathematically simple, quickly-computable resolution enhancement for time-series signals consisting

Description

Mathematically simple, quickly- computable resolution enhancement for time-series signals consisting of partially overlapping peaks. It is based on subtracting the scaled, smoothed 2nd derivative and adding the scaled, smoothed 4th derivative to the original signal. The algorithm can be customized for signals of different types by adjusting the scaling factors for the derivatives and the width of the smoothing function. The routines here have sliders that allow you to adjust the resolution enhancement parameters continuously while observing the effect on your signal dynamically. See http://www.wam.umd.edu/~toh/spectrum/InteractiveResEnhance.htm for more information.
Tom O'Haver, [e-mail]
(Thanks to Matthew Jones for the slider function.)

• Acknowledgements: This submission has inspired the following:; Interactive resolution enhancement function
• MATLAB release: MATLAB 6.5 (R13)

[Steffen B. Petersen]

Very nice indeed.

[Juny Wang]

very good to use

[Carlos Shigue]

Thanks Tom, for the Matlab port of your signal processing programs.

[Tom O'Haver]

The sliders used in this program do not work in recent version of Matlab. I've now uploaded a new keypress-operated version that performs interactive smoothing, derivatives, and peak sharpening. See http://www.mathworks.com/matlabcentral/fileexchange/32075-isignal