Applying the Hilbert--Huang Decomposition to Horizontal Light Propagation C_n^2 data

Details Applying the Hilbert--Huang Decomposition to Horizontal Light Propagation C_n^2 data Applying the Hilbert--Huang Decomposition to Horizontal Light Propagation C_n^2 data

2006-05-06

arxiv.org/abs/physics/0605059v1

Physics

Atmospheric and Oceanic Physics

9 pages, 11 figures, proc. SPIE 6268

Scientific paper

10.1117/12.672280

The Hilbert Huang Transform is a new technique for the analysis of non--stationary signals. It comprises two distinct parts: Empirical Mode Decomposition (EMD) and the Hilbert Transform of each of the modes found from the first step to produce a Hilbert Spectrum. The EMD is an adaptive decomposition of the data, which results in the extraction of Intrinsic Mode Functions (IMFs). We discuss the application of the EMD to the calibration of two optical scintillometers that have been used to measure C_n^2 over horizontal paths on a building rooftop, and discuss the advantage of using the Marginal Hilbert Spectrum over the traditional Fourier Power Spectrum.

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