Windowed Fourier Transform of Experimental Robotic Signals with Fractional Behavior

Lima, Miguel F. M.; Tenreiro Machado, J. A.; Crisóstomo, Manuel

http://hdl.handle.net/10400.22/13318

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Authors

Lima, Miguel F. M.

Tenreiro Machado, J. A.

Crisóstomo, Manuel

Abstract(s)

This paper analyzes the signals captured during impacts and vibrations of a mechanical manipulator. The signals are treated through signal processing tools such as the fast Fourier transform and the windowed Fourier transform.The Fourier spectrum of several signals presents a non integer behavior. The experimental study provides useful information that can assist in the design of a control system to deal with the unwanted effects of vibrations.