The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The main problem of DTH is the signal disruption is due to rain. Rain fade, a major characteristics of signal propagation occurs at 11 GHz frequency. Rain rate measurement from which attenuation time series is generated plays a major role due to the non availability of actual signal measurements. This paper deals with the mathematical approach of the ITU-R model of rain attenuation and how it has...
Prediction of channel characteristics can be of immense value in improving the quality of signals in high frequency satellite systems. Making prediction of rainfall rate (RR) using Markov theory and using that prediction in an intelligent system (IS) to maintain the quality of service (QoS) in channels impacted by attenuation due to weather is the object of this paper. The paper describes the method...
Abstract On 28 March, 1999 (19:05:10.09, UT) a significant earthquake of Mw 6.4 occurred in the Garhwal Himalaya (30.555N, 79.424E). One hundred and ten well-recorded aftershocks show a WNW-ESE trending northeasterly dipping seismic zone extending from a depth of 2 to 20km. As the main shock hypocenter occurred at the northern end of this seismic zone and aftershocks extended updip, it is inferred...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.