Download or read book Microwave Terrestrial Link Rain Attenuation Prediction Parameter Analysis written by E. J. Dutton and published by . This book was released on 1984 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rain Fade Dynamics Analysis for Terrestrial Microwave Links Operating in Malaysia written by Alhareth M. T. Zyoud and published by . This book was released on 2011 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rain fade refers to the absorption and scattering of a microwave signal by rain drops, which becomes a critical issue at frequencies above 10 GHz. Knowledge of the dynamics characteristics of rain fade is important for communication system designs since it determines the system availability and assigns the system resource. It is also very essential information for implementation of fade mitigation techniques. Limited research has been conducted on rain fade dynamics modeling and prediction. Those researches were conducted on rain fade dynamics data collected from the temperate regions not the tropical areas, where the rain intensity is very high. Prediction models which are available in literature and adopted by International Telecommunication Union - Radio (ITU-R) have been proposed for earth to satellite links only and not for terrestrial links. In this study 16 months measured rain attenuation data in Malaysia for six microwave links at four different frequencies (15, 23, 26 and 38 GHz) were analyzed. Two features of rain fade dynamics for terrestrial links were investigated: fade slope and fade duration, and compared to models proposed by ITU-R for those parameters. Significant discrepancies have been observed with prediction models and measured data. In the case of fade slope, ITU-R model did not fit the measured data for attenuation level higher than 4 dB. The number of events for measured data was higher than that predicted by ITU-R fade duration model, especially for short duration and for all attenuation levels. None of six link's measured fade slope and fade duration data fit with ITU-R prediction models. A new modified model for rain fade slope prediction has been proposed based on measured data. The proposed modified fade slope model fits the measured data at all four frequencies and for all attenuation levels.
Download or read book Rain Attenuation Statistics for Terrestrial Microwave Links in Canada written by B. Segal and published by Communications Research Centre. This book was released on 1982 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: EMS copy lacks errata.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Publications Abstracts written by United States. National Telecommunications and Information Administration and published by . This book was released on 1984 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rain Attenuation Prediction for Terrestrial Microwave Links Based on Rain Rate and Rain Attenuation Measurements in a Tropical Region written by Md. Rafiqul Islam and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Precipitation Variability in the U S A for Microwave Terrestrial System Design written by E. J. Dutton and published by . This book was released on 1977 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on the Effects of Signal Attenuation Due to Rain on Terrestrial Line of sight Microwave Communication Link Operating at 15 GHZ in Malaysia written by Rozeha A. Rashid and published by . This book was released on 1993 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents an investigation of the rain induced attenuation at15GHz on terrestrial line-of sight link. The measurements were conductedby using an experimental link with path length of about 440 meters at Universiti Teknologi Malaysia (UTM), Kuala Lumpur. The aim is to carry outpropagation studies concerning the effects of meterrological phenomena,in particularly, precipitation on the transmission path. The transmission ismonitored automatically with a personel computer and simultaneously with a set of meteorological instruments; rain-gauge and distrometer. Measurements data of the rain-induced attenuation on the LOS Link will be compared with CCIR model for tropical regions and predicted model developed at UTM.The propagation results will be used to validate the prediction of the spceific attenuation obtained from CCIR and the prediction model developedat UTM.
Download or read book Assembl e Pl ni re written by International Radio Consultative Committee and published by . This book was released on 1990 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Communication Technologies for Vehicles written by Juan Moreno García-Loygorri and published by Springer. This book was released on 2018-04-27 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the proceedings of the 13th International Workshop on Communication Technologies for Vehicles, Nets4Cars/Nets4Trains/Nets4Aircraft 2018, held in Madrid, Spain, in May 2018. The 17 full papers presented together with 2 demo papers in this volume were carefully reviewed and selected from numerous submissions. The volume features contributions in the theory or practice of intelligent transportation systems (ITS) and communication technologies for: - Vehicles on road: e.g. cars, tracks and buses; - Air: e.g. aircraft and unmanned aerial vehicles; and - Rail: e.g. trains, metros and trams.
Download or read book Radio Wave Propagation and Channel Modeling for Earth Space Systems written by Athanasios G. Kanatas and published by CRC Press. This book was released on 2017-12-19 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: The accurate design of earth–space systems requires a comprehensive understanding of the various propagation media and phenomena that differ depending on frequencies and types of applications. The choice of the relevant channel models is crucial in the design process and constitutes a key step in performance evaluation and testing of earth–space systems. The subject of this book is built around the two characteristic cases of satellite systems: fixed satellites and mobile satellite systems. Radio Wave Propagation and Channel Modeling for Earth–Space Systems discusses the state of the art in channel modeling and characterization of next-generation fixed multiple-antennas and mobile satellite systems, as well as propagation phenomena and fade mitigation techniques. The frequencies of interest range from 100 MHz to 100 GHz (from VHF to W band), whereas the use of optical free-space communications is envisaged. Examining recent research advances in space-time tropospheric propagation fields and optical satellite communication channel models, the book covers land mobile multiple antennas satellite- issues and relative propagation campaigns and stratospheric channel models for various applications and frequencies. It also presents research and well-accepted satellite community results for land mobile satellite and tropospheric attenuation time-series single link and field synthesizers. The book examines aeronautical communications channel characteristics and modeling, relative radio wave propagation campaigns, and stratospheric channel model for various applications and frequencies. Propagation effects on satellite navigation systems and the corresponding models are also covered.
Download or read book Recommendations and Reports of the CCIR 1986 Propagation in non ionized media written by International Radio Consultative Committee and published by . This book was released on 1986 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1984 with total page 1248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OT Report written by United States. Department of Commerce. Office of Telecommunications and published by . This book was released on 1977 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Renewable Power for Sustainable Growth written by Atif Iqbal and published by Springer Nature. This book was released on 2021-04-20 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers presented at the International Conference on Renewable Power (ICRP 2020), held during 13–14 July 2020 in Rajouri, Jammu, India. The book covers different topics of renewable energy sources in modern power systems. The book focusses on smart grid technologies and applications, renewable power systems including solar PV, solar thermal, wind, power generation, transmission and distribution, transportation electrification and automotive technologies, power electronics and applications in renewable power system, energy management and control system, energy storage in modern power system, active distribution network, artificial intelligence in renewable power systems, and cyber-physical systems and Internet of things in smart grid and renewable power.
Download or read book OT Report written by United States. Department of Commerce. Office of Telecommunications and published by . This book was released on 1977 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1984 with total page 1042 pages. Available in PDF, EPUB and Kindle. Book excerpt:
