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AES Section Meeting Reports

Central Indiana - May 12, 2011

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Summary

In his presentation, Dr. Hansen discussed how phase comparison can be a powerful tool with countless real-world applications. The three specific applications of phase related signal processing techniques discussed were phase sensitive detection, optical holography, and modal analysis.

Dr. Hansen explained that the elements essential to describing a monochromatic wave are amplitude, frequency, wavelength, speed of propagation, polarization and phase.

Additionally, it was explained that phase identifies the location of a point along the propagating waves and that absolute phase measurements are not only difficult but generally not of interest.

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AES - Audio Engineering Society