Computer Science – Sound
Scientific paper
Jan 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978p%26ss...26...21b&link_type=abstract
Planetary and Space Science, vol. 26, Jan. 1978, p. 21-26. Research supported by the Science Research Council of England.
Computer Science
Sound
2
Data Reduction, Fourier Transformation, Periodic Variations, Time Series Analysis, Electron Energy, Energy Spectra, Rocket Sounding, Spin Dynamics, Time Dependence
Scientific paper
Fourier transform techniques were used to analyze a time series of experimental data in order to isolate a repeatedly scanned component, periodic and non-periodic temporal components and noise. The method was applied to a rocket-borne electrostatic electron energy analyzer being swept at a fixed rate, but having the spectra modified by non-periodic temporal variations and modulation at the spin rate of the rocket. It was found that by suitable displacement of the data amplitude origin and shaping of the ends of the time series, a very good separation of the various components was obtained. This indicates that the technique is a method particularly applicable to analyzing data in which different periodic components are present.
Basto R. A.
Raitt William J.
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