Handbook on Radio Propagation for Tropical and Subtropical Countries

Mitra, Ashis; Reddy, Benjaram M.; Radicella, S. M.; Oyinloye, J.O; Feng, Sha

doi:10.1080/02564602.1988.11438315

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“…Information is provided by Recommendation 5312 on the frequency dependence, geometrical variation, morphology and signal characteristics of equatorial scintillation, with fade depths given in terms of decibels peak-to-peak or by scintillation index, S, (the standard deviation of received power divided by the mean value of received power). Graphical data are given showing the variation of scintillation at 4 GHz with respect to sunspot number over a ten-year period (based on data from several low-latitude sites), and the seasonal occurrence for two longitude regions. In addition, annual statistics of 4 GHz scintillation for six consecutive years at Hong Kong are displayed (Figure 3).…”

Section: Information Relating To Trans-ionospheric Effectsmentioning

confidence: 99%

CCIR data for slant‐path propagation in tropical regions: A critical review

Hughes¹

1990

Int. J. Satell. Commun.

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The development of methods for predicting the effects of the troposphere and ionosphere on Earth‐space paths is a topic of major interest in the work of CCIR. A principal objective is that the methods have world‐wide applicability and, being essentially empirical in nature, their development relies on the availability and voluntary contribution of world‐wide data, as well as on a knowledge of the global behaviour of the propagation mechanisms involved. Despite some advances in recent years, CCIR propagation prediction methods continue to lack universal applicability, in particular in low latitude tropical areas. This is largely due to a shortage of measurement data for the regions concerned; hopefully, this situation is changing in view of recent efforts to establish appropriate propagation experiments. The paper reviews the current status of CCIR propagation data and information relating to the design of space telecommunication systems in tropical regions, making close reference to the studies and texts of CCIR Study Groups 5 and 6 (Propagation in non‐ionized and in ionized media, respectively). Shortcomings in the available information and the lack of general world‐wide applicability of the models, highlight the propagation effects for which further data are still required.

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Section: Information Relating To Trans-ionospheric Effectsmentioning

confidence: 99%

CCIR data for slant‐path propagation in tropical regions: A critical review

Hughes¹

1990

Int. J. Satell. Commun.

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Handbook on Radio Propagation for Tropical and Subtropical Countries

Cited by 1 publication

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CCIR data for slant‐path propagation in tropical regions: A critical review

CCIR data for slant‐path propagation in tropical regions: A critical review

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