Please use this identifier to cite or link to this item: http://nopr.niscair.res.in/handle/123456789/37089
Title: Fresnel-type Fading on Satellite Records at Low Latitude
Authors: Dabas, S
Bhardwaj, R K
Lal, J B
Tyagi, T R
Somayajulu, Y V
Issue Date: Jun-1979
Publisher: NISCAIR-CSIR, India
Abstract: Fresnel-type fading’s have been observed on recordings of ATS-6 geostationary satellite at Kurukshetra (lat., 29.9°N; long" 76.8°E; dip 45.6°) during Apr-Aug, 1976. The occurrence of such patterns is highest in the times interval of 1600-2300 hrs LT in the months of June and July. It seems that these are generated by patches of increased ionization of extent ranging from a fraction of a kilometer to a few tens of kilometers at heights corresponding to sporadic-E and the lower F-region. On some occasions these patterns occur in groups of the same size and even the same shape with repetition period ranging from 2-20 min, Some fading patterns show modulated Fresnel-type fading before and after a central minimum. The results are compared with those obtained for both the hemispheres and near equatorial regions.
Page(s): 114-118
URI: http://nopr.niscair.res.in/handle/123456789/37089
ISSN: 0975-105X (Online); 0367-8393 (Print)
Appears in Collections:IJRSP Vol.08(3) [June 1979]

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