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Performing high-res spectral estimation of vibration data

Posted: 22 Sep 2011 ?? ?Print Version ?Bookmark and Share

Keywords:spectral analysis? vibration data? Discrete Fourier Transform?

This application note examines the suitability of the Freescale MMA9550L Intelligent Motion-Sensing Platform for high-resolution, real-time spectral analysis of vibration data for engine monitoring and failure prediction.

This note includes i) the architecture of the MMA9550L platform ii) the mathematics of the Discrete Fourier Transform (DFT) iii) results from applying the DFT to vibration time series containing amplitude modulation, phase modulation, and impulsive noise and iv) example MMA9550L C code with calculations of memory footprint and processing overhead.

View the PDF document for more information.

Originally published by Freescale Semiconductor Inc. at www.freescale.com as "Using the Freescale MMA9550L for High-Resolution Spectral Estimation of Vibration Data".





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