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http://arks.princeton.edu/ark:/88435/dsp011g05ff83b| Title: | Novel angular velocity estimation technique for plasma filaments |
| Contributors: | Lampert, Mate Lampert, Mate Diallo, Ahmed Zweben, Stewart U. S. Department of Energy contract number DE-AC02-09CH11466 |
| Issue Date: | Dec-2022 |
| Publisher: | Princeton Plasma Physics Laboratory, Princeton University |
| Abstract: | Data for the figures in text format. Please read the README file for detailed description. |
| URI: | http://arks.princeton.edu/ark:/88435/dsp011g05ff83b |
| Referenced By: | https://doi.org/10.1063/5.0128818 |
| Appears in Collections: | NSTX |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| fig1ab.txt | Two example consecutive frames of a rotating filament. Each line represents 64 horizontal pixels from the frame, each column represents vertical 80 pixels. Frame #1 and frame #2 are in the same file and contain the data for Fig. 1(a) and Fig. 1(b). | 37.52 kB | Text | View/Download |
| fig3abcd.txt | Pre-processing steps for the analysis. Same representation as for Fig. 1. Fig 3 (a,b,c,d) are in the same file in respective order: GPI_SLICED_FULL data (Fig. 3 (a)): Data for Figure 3 (a) GPI_NORMALIZED data (Fig. 3 (b)): Data for Figure 3 (b) GPI_DETREND_VEL data (Fig. 3 (c)): Data for Figure 3 (c) GPI_GAUSS_DIFF data (Fig. 3 (d)): Data for Figure 3 (d) | 321.38 kB | Text | View/Download |
| fig4a.txt | Fourier magnitude spectrum of a pre-processed GPI frame. x (pix) is the x coordinate in the Fourier magnitude spectrum. y (pix) is the y coordinate. FFT linear is the Fourier magnitude spectrum. Each line represents a horizontal row of pixels in the x axis while each column represents a vertical column of pixels in the y axis. | 866.03 kB | Text | View/Download |
| fig4b.txt | Same representation as Fig. 4 (a), but for the consecutive frame. | 865.08 kB | Text | View/Download |
| fig4c.txt | Log-polar transformed Fourier magnitude spectrum of the spectrum in Fig. 4 (a). phi (deg) is the polar coordinate in the transformed spectrum. r (pix) is the radial coordinate in the transformed spectrum. FFT logpol: Log-polar Fourier magnitude spectrum. Each line represents a horizontal row of pixels in the polar axis while each column represents a vertical column of pixels in the radial axis. | 2.55 MB | Text | View/Download |
| fig4d.txt | Same representation as Fig. 4 (c), but for the consecutive frame. | 2.56 MB | Text | View/Download |
| fig5.txt | Cross-correlation coefficient function calculated between the log-polar transformed Fourier magnitude spectra for the full polar and the [-31,31] radial range. r lag (pix): radial lag coordinate in the CCCF. phi lag (deg): polar lag coordinate in the CCCF 2D CCCF data: 2D spatial cross-correlation coefficient function. Each line represents a horizontal row of pixels in the phi lag axis while each column represents a vertical column of pixels in the r lag axis. | 876.55 kB | Text | View/Download |
| fig6.txt | Results of the cross-correlation threshold assessment for NSTX GPI measurement for shot 141319. Each row represents a point in the time series. The columns represent the time, and the angular velocity estimates for different correlation thresholds from 0.9 to 0.4 with 0.1 increments, respectively. | 44.05 kB | Text | View/Download |
| fig7.txt | Synthetic frames of a normal (Frame #1, Fig. 7 (a)) and a rotated (Frame #2, Fig. 7 (b)) Gaussian-structure. Same representation as in Figure 1. | 210.75 kB | Text | View/Download |
| fig8.txt | Relative uncertainty of the angular rotation estimation vs. angle of rotation and the Gaussian structure size. Angle rotation: rotation in degrees. Size vector: FWHM of the Gaussian structures in pixels. Relative uncertainty: Each row corresponds to a Gaussian size setting. Each column corresponds to an angle of rotation setting. | 8.9 kB | Text | View/Download |
| fig9.txt | Relative uncertainty of the angular rotation estimation vs. angle and elongation. Angle rotation: rotation in degrees Elongation: elongation of the Gaussian-structure. Relative uncertainty: Each row corresponds to a rotation angle setting, each column corresponds to an elongation setting. | 16.49 kB | Text | View/Download |
| fig10.txt | Mean and standard deviation of the relative uncertainty vs. angle of rotation and relative noise level. Angle of rotation: angle of rotation in degrees. Relative noise level: relative noise level settings. Mean relative uncertainty of the angular rotation estimation: Each row corresponds to a rotation angle setting, each column corresponds to a relative noise level setting. Data for Fig. 10 (a). Standard deviation of the relative uncertainty of the angular rotation estimation: Each row corresponds to a rotation angle setting, each column corresponds to a relative noise level setting. Data for Fig. 10 (b). | 30.26 kB | Text | View/Download |
| fig11_484.177ms.txt | 87.97 kB | Text | View/Download | |
| fig11_484.180ms.txt | 87.23 kB | Text | View/Download | |
| fig11_484.182ms.txt | 88.28 kB | Text | View/Download | |
| fig11_484.185ms.txt | 88.03 kB | Text | View/Download | |
| fig11_484.187ms.txt | 87.68 kB | Text | View/Download | |
| fig11_484.190ms.txt | 87.8 kB | Text | View/Download | |
| fig11_484.193ms.txt | 87.58 kB | Text | View/Download | |
| fig11_484.195ms.txt | 87.73 kB | Text | View/Download | |
| fig11_484.198ms.txt | 87.82 kB | Text | View/Download | |
| fig12.txt | Angular velocity estimation results for blobs in shot 141307. Time (ms): Time vector in milliseconds. Angular velocity (rad/s): Angular velocity in rad/s. | 14.78 kB | Text | View/Download |
| fig13_-2.5us.txt | 89.19 kB | Text | View/Download | |
| fig13_-5us.txt | 88.7 kB | Text | View/Download | |
| fig13_-7.5us.txt | 89.07 kB | Text | View/Download | |
| fig13_-10us.txt | 89.34 kB | Text | View/Download | |
| fig13_2.5us.txt | 88.87 kB | Text | View/Download | |
| fig13_5us.txt | 89.19 kB | Text | View/Download | |
| fig13_7.5us.txt | 89.43 kB | Text | View/Download | |
| fig13_10us.txt | 88.91 kB | Text | View/Download | |
| fig13_t_ELM.txt | 89.1 kB | Text | View/Download | |
| fig14.txt | Angular velocity estimation results for an ELM filament in shot 141319. Time (ms): Time vector in milliseconds. Angular velocity (rad/s): Angular velocity in rad/s. | 9.7 kB | Text | View/Download |
| fig15a.txt | Comparison of the angular velocity estimation techniques for shot 141307. Time CCCF (ms): Time vector in milliseconds for the CCCF technique. Angular velocity CCCF (krad/s): Angular velocity calculated with the CCCF based technique. Time contour (ms): Time vector in milliseconds for the contour technique. Angular velocity contour (krad/s): Angular velocity estimate with the contour based technique. Time watershed (ms): Time vector in milliseconds for the watershed technique. Angular velocity watershed (krad/s):Angular velocity estimate with the watershed based technique. | 42.74 kB | Text | View/Download |
| fig15b.txt | Comparison of the angular velocity estimation techniques for shot 141319. Same representation as for Fig. 15 (a). | 36.22 kB | Text | View/Download |
| README.txt | Detailed description of all of the data files. | 5.11 kB | Text | View/Download |
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