Handbook of Propagation Effects for Vehicular and ... - Courses

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7-18 Percentage of Distance Fade > Abscissa 100 9 8 7 6 5 4 3 2 10 9 8 7 6 5 1 4 3 2 Propagation Effects for Vehicular and Personal Mobile Satellite Systems Legend 295 S,RL,HR 295 N, RL, HR 295 S, LL, HR 295 N, LL, HR 108 SW, HL 108 NE, HL 32 N, HL 32 S, HL EERS Predicted 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Fade (dB) Figure 7-19: Cumulative distributions at UHF (870 MHz) for elevation angle = 45° from mobile measurements made with a helicopter transmitter platform along eight roads in central Maryland [Goldhirsh and Vogel, 1989]. Solid curve is EERS prediction. Percentage of Distance Fade > Abscissa 100 9 8 7 6 5 4 3 2 10 9 8 7 6 5 1 4 3 2 Legend 295S,RL, HR 295 N, RL, HR 295 S, LL, HR 295 N, LL, HR 108 SW, HL 108 NE, HL 32 N, HL 32 S, HL EERS Predicted 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Fade (dB) Figure 7-20: Cumulative distributions at UHF (870 MHz) for elevation angle = 60° from mobile measurements made with a helicopter transmitter platform along eight roads in central-Maryland [Goldhirsh and Vogel, 1989]. Solid curve is EERS prediction.
Investigations from Different Countries 7-19 Percentage of Distance Fade > Abscissa 100 9 8 7 6 5 4 3 2 10 9 8 7 6 5 1 4 3 2 Legend 295 S, Rt Lane 295 N. Rt. Lane 295 S. Left Lane 295 N. Left Lane 108 SW 108 NE 32 N 32 S EERS Predicted 0 2 4 6 8 10 12 14 16 Fade (dB) Figure 7-21: Cumulative distributions for eight roads in central Maryland at 1.5 GHz and 21° elevation obtained from measurements with MARECS B-2. Solid curve is EERS model prediction [Goldhirsh and Vogel, 1995]. Percentage of Distance Fade > Abscissa 100 9 8 7 6 5 4 3 2 10 9 8 7 6 5 1 4 3 2 Legend 295 S,RL,HR 295 N, RL, HR 295 S, LL, HR 295 N, LL, HR 108 SW, HL 108 NE, HL 32 N, HL 32 S, HL EERS Predicted 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Fade (dB) Figure 7-22: Cumulative distributions for eight roads in central Maryland at 1.5 GHz and 30° elevation obtained from measurements employing a helicopter transmitter platform. Solid curve is EERS model prediction [Goldhirsh and Vogel, 1995].
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A2A-98-U-0-021 (APL) EERL-98-12A (E
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Table of Contents 1 Introduction __
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10 Optical Methods for Assessing Fa
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Table of Contents 1 Introduction __
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1-2 Propagation Effects for Vehicul
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Table of Contents 2 Attenuation Due
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Chapter 2 Attenuation Due to Trees:
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Attenuation Due to Trees: Static Ca
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Table of Contents 3 Attenuation Due
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Figure 3-23: Fade distributions at
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3-4 Relative Signal Level (dB) 5 0
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3-10 Percent of Distance the Fade >
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3-12 Propagation Effects for Vehicu
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3-14 3.4.3 Austin, Texas at K-Band
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3-20 Relative Signal Level (dB) 5 0
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3-24 Percentage of Distance Fade >
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3-26 and where 1 2 Propagation Effe
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3-28 Percentage of the Time Fade >
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3-32 3.7.5 Comparative Summary of M
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Chapter 4 Signal Degradation for Li
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Table of Tables Table 4-1: Summary
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4-4 Percentage of Distance Fade > A
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4-8 Percentage of Distance Fade > A
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4-14 Percentage of Distance or Time
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Table of Contents 5 Fade and Non-Fa
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Chapter 5 Fade and Non-Fade Duratio
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Fade and Non-Fade Durations and Pha
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Earth-Satellite Propagation Effects
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Earth-Satellite Propagation Effects
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Chapter 9 Maritime-Mobile Satellite
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Figure 9-7: Fading depth versus pat
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9-6 Roughness Parameter, u (Rad) 28
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9-8 Cθ = ( θo − 7) / 2 dB for
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9-10 Fading Depth (dB) 6 5 4 3 2 1
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9-12 Fading Depth (dB) 6 5 4 3 2 1
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9-18 Mean Fade Occurrence Interval,
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9-20 Mean Fade Duration, T D (sec)
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9-22 Fade Depth (dB) 7.0 6.5 6.0 5.
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Table of Contents 10 Optical Method
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Chapter 10 Optical Methods for Asse
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Optical Methods for Assessing Fade
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Table of Contents 11 Theoretical Mo
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Chapter 11 Theoretical Modeling Con
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Theoretical Modeling Considerations
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Table of Contents 12 Summary of Rec
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Table 12-7: Tabulation of azimuth a
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12-10 12.6.5 Satellite Diversity Pr
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12-12 Propagation Effects for Vehic
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12-14 Standard Deviation (dB) 4 3 2
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12-18 Fade Depth (dB) 7.0 6.5 6.0 5
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Index 13-1 Index 2 2-state Markov m
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Index 13-3 Jongejans, A. et al., 3-
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