Technical note The effect of rate of decay of rain path profile on microwave communication
作者:
N. C. Mondal,
K. I. Timothy,
A. B. Battacharaya,
S. K. Sakar,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1997)
卷期:
Volume 18,
issue 17
页码: 3669-3675
ISSN:0143-1161
年代: 1997
DOI:10.1080/014311697216865
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The attenuation of radio waves due to rain can be predicted with a good degree of accuracy, provided the rain rate characteristics over the entire path of propagation are known. The attenuation due to rain is usually deduced on the basis of point rain rate, which can lead to inaccuracy in the estimation of attenuation. We use the concept of rate of decay of rain path profile to estimate the attenuation due to rain. The attenuation has been deduced at 11GHz and 13.4 GHz for 56 elevation angle by using the theory of decay rate of rain path profile, its controlling factor, gamma, and rain rate distribution over Delhi, a tropical station in India. The theoretically-estimated attenuation is compared with observed values, as well as with values obtained using the International Radio Consultative Committee (CCIR) method. The CCIR model is found to overestimate the attenuation.
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