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Author: M. D. Bailey
Publisher:
ISBN:
Category : Satellite solar power stations
Languages : en
Pages : 96
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Book Description
Author: M. D. Bailey
Publisher:
ISBN:
Category : Satellite solar power stations
Languages : en
Pages : 96
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Book Description
Author: National Aeronautics and Space Administration (NASA)
Publisher: Createspace Independent Publishing Platform
ISBN: 9781722430184
Category :
Languages : en
Pages : 96
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Book Description
Solar power is a preeminent alternative to conventional aircraft propulsion. With the continued advances in solar cells, fuel cells, and composite materials technology, the solar powered airplane is no longer a simple curiosity constrained to flights of several feet in altitude or minutes of duration. A high altitude solar powered platform (HASPP) has several potential missions, including communications and agriculture. In remote areas, a HASPP could be used as a communication link. In large farming areas, a HASPP could perform remote sensing of crops. The impact of HASPP in continuous flight for one year on agricultural monitoring mission is presented. This mission provides farmers with near real-time data twice daily from an altitude which allows excellant resolution on water conditions, crop diseases, and insect infestation. Accurate, timely data will enable farmers to increase their yield and efficiency. A design for HASPP for the foregoing mission is presented. In the design power derived from solar cells covering the wings is used for propulsion, avionics, and sensors. Excess power produced midday will be stored in fuel cells for use at night to maintain altitude and course. Bailey, M. D. and Bower, M. V. Marshall Space Flight Center...
Author: David Grace
Publisher: John Wiley & Sons
ISBN: 1119957559
Category : Technology & Engineering
Languages : en
Pages : 286
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Book Description
A unique book with systematic and thorough coverage of HAP related issues, problems and solutions. Handbook of Broadband Communications from High Altitude Platforms provides a thorough overview and state of the art of the HAP enabling technologies, as well as describing recent research activities with most promising results. It outlines the roadmap for future development of HAPs. Focuses on placing HAPs in the perspective of current and future broadband wireless communication systems, providing the readers with an overview of the constraints affecting HAP-based broadband communications Provides a thorough overview of HAP enabling technologies, describes recent research activities with most promising results, and outlines the roadmap for future development of HAPs Covers enabling technologies and economics of HAP-based communication system including issues related to aeronautics, energetics, operating scenarios, applications and business modeling Examines the operating environment, advanced communication techniques for efficient radio link resource management, and suitable antennas Addresses multiplatform constellations, presenting the multiple HAP constellation planning procedure and discussing the networking implications of using multiple HAPs
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1308
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Book Description
Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1194
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1572
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Book Description
Author: Lin Bai
Publisher: World Scientific
ISBN: 9811202478
Category : Computers
Languages : en
Pages : 471
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Book Description
This book introduces the basic theory and key technologies of MIMO multi-antenna system, the characteristics and applications of spatial multi-dimensional cooperative transmission in the Ground-based, Air-based and Space-based communication systems as well as several advanced technologies for spatial multidimensional cooperative transmission from theoretical and practical perspectives. The Chinese edition of this book won the 4th Chinese Government Award for Publishing, and the authors are well known in the field of Spatial Information Network.
Author: Alejandro Aragón-Zavala
Publisher: John Wiley & Sons
ISBN: 0470997427
Category : Technology & Engineering
Languages : en
Pages : 256
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Book Description
Provides an introduction to High-Altitude Platform Stations (HAPS) technology and its applications for wireless communications High-altitude platform stations offer a promising new technology that combines the benefits of terrestrial and satellite communication systems for delivering broadband communications to users at a low cost. They are easily deployable and easy to maintain, which is why they offer a good alternative for network operators who need to find ways to get more coverage to satisfy the increasing demand for more capacity. HAPS are usually balloons, airships or unmanned aerial systems (UAS) located in the stratosphere. An enormous interest has grown worldwide to examine their use not only for broadband communications, but also for emergency services, navigation, traffic monitoring, cellular, etc. Key features include: Unique book focusing on emerging HAPS technology and its applications Provides a thorough overview of the technology including HAPS-based communications systems, antennas for HAPS, radio propagation and channel modelling issues and HAPS networking aspects Presents various HAPS-related projects and initiatives developed throughout the world (North America, Europe and Asia-Pacific) Features a comprehensive overview on both aeronautical and telecommunications regulatory aspects, which will affect the deployment and future developments in the field of HAPS High-Altitude Platform Systems for Wireless Communications will prove essential reading for postgraduate students in the field of HAPS, engineers, developers and designers involved in the design and maintenance of HAPS, aerospace engineers, and communications system planners and researchers.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 60
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Book Description
Author: collective of authors
Publisher: Czech Institute of Academic Education z.s.
ISBN: 8090579116
Category : Computers
Languages : en
Pages : 286
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Book Description
Conference proceedings - International Academic Conference on Engineering, Internet and Technology in Prague 2014 (IAC-EIaT 2014 in Prague), Friday - Saturday, December 12 - 13, 2014
