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Singular value decomposition filtering for enhanced signal extraction from two-dimensional beam emission spectroscopy measurementsa)
a)Contributed paper, published as part of the Proceedings of the 17th Topical Conference on High-Temperature Plasma Diagnostics, Albuquerque, New Mexico, May 2008.
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10.1063/1.2979879
/content/aip/journal/rsi/79/10/10.1063/1.2979879
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/10/10.1063/1.2979879
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

SVD weights for data obtained at . The inset illustrates BES channel array.

Image of FIG. 2.
FIG. 2.

Autopower spectra averaged over all 30 channels as a function of modes used in the SVD reconstruction (30 modes represents original data). Data obtained at .

Image of FIG. 3.
FIG. 3.

Plasma signal and noise components for (a) ten modes reconstructed and (b) unfiltered data. Data obtained at .

Image of FIG. 4.
FIG. 4.

(a) SNR and (b) SNR gain vs mode number included in reconstruction. Data obtained at .

Image of FIG. 5.
FIG. 5.

Radial correlation lengths for data at . (a) Averaged for six radial arrays and six cases of the number of modes used in the SVD reconstruction. (b) Time-resolved for filtered data (green) and unfiltered data (gray).

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/content/aip/journal/rsi/79/10/10.1063/1.2979879
2008-10-31
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Singular value decomposition filtering for enhanced signal extraction from two-dimensional beam emission spectroscopy measurementsa)
http://aip.metastore.ingenta.com/content/aip/journal/rsi/79/10/10.1063/1.2979879
10.1063/1.2979879
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