Article Figures & Data
Figures
- FIGURE 1
Geometry of the phase-screen scintillation scenario (adapted from Ghafoori [2012])
- FIGURE 2
Plots of (a) Ξ(y) = C(y) + jS(y) for |y| < 5 (Cornu spiral) and (b) |IA(a, b; γ)| for γ = 4.7 ×10−5
- FIGURE 3
Example of the induced phase versus the phase-screen diffraction position x
- FIGURE 4
Example of the normalized signal intensity for an infinite train of electron density irregularities with ΔTEC = 2 TECU and corresponding phase modulo-2π time sequence
- FIGURE 5
Scintillation indices S4 versus ΔTEC in TEC units for the L1 and L2 bands
- FIGURE 6
Fading intensities generated by a common scintillation process for different carrier frequencies
- FIGURE 7
Normalized probability histograms of the amplitude for L1 band with L = D /2 = 250 m and vdrift = 100 m/s
- FIGURE 8
Excerpt of fading intensity I(t) and unwrapped phase ϕ(t) for ΔTEC = 2 TECU (S4 ≈ 0.89); the interval A-B corresponds to a canonical fade.
- FIGURE 9
Polar plot for the scintillation process of Figure 8
- FIGURE 10
Relation between parameters σϕ and S4: (a) using the proposed method with 0.05 TECU ≤ ΔTEC ≤ 2 TECU; (b) using the GISM
- FIGURE 11
Example of intensity and phase power spectra for the L1 band
- FIGURE 12
Example of the dependence of the intensity and phase power spectra on vdrift for the L1 band
- FIGURE 13
Definition of the intensity and phase fading parameters
- FIGURE 14
Normalized probability histograms of (a) fading duration and (b) fading depth for the L1 band
- FIGURE 15
Normalized probability histogram of separation between fades for the L1 band
- FIGURE 16
Normalized probability histograms of (a) peak-to-peak phase change and (b) maximum phase change rate for the L1 band
- FIGURE 17
Relations between (a) peak-to-peak phase change and fading depth and (b) between maximum phase rate and fading depth for the L1 band
- FIGURE 18
(a) Real and (b) synthesized intensity time series with common S4 value and average deep fade duration and spacing
- FIGURE 19
Generation of ionospheric scintillation time-series using pre-defined (target) scintillation parameters
Tables
Parameter L1 L2 L5 Number of fades 833 1110 1161 Scintillation index S4 0.96 1.09 1.08 Fading duration (s) (mean) 0.41 0.38 0.37 Fading duration (s) (stdev) 0.31 0.38 0.39 Fading depth (dB) (mean) −19.00 −18.76 −18.99 Fading depth (dB) (stdev) 7.65 8.19 8.08 Fade separation (s) (mean) 4.32 3.24 3.10 Fade separation (s) (stdev) 3.99 2.76 2.52 Peak-to-peak phase change (rad) (mean) −0.05 0.02 0.03 Peak-to-peak phase change (rad) (stdev) 2.29 2.29 2.31 Maximum phase rate (rad/s) (mean) 22.36 24.94 26.06 Maximum phase rate (rad/s) (stdev) 25.93 28.41 28.51 Prob(L1) Prob(L2) Prob(L5) Prob(L1,L2) Prob(L1,L5) Prob(L2,L5) Prob(L1,L2,L5) 0.105 0.110 0.115 0.017 0.016 0.051 0.009
Jump to section
Related Articles
Cited By...
- No citing articles found.