High Altitude Platforms
An Approach for Efficient Two-Stage 2D-DOA Estimation in High-Altitude Platforms Mobile Communications
... developing high-altitude platforms (HAP) for wireless communications due to their advantages compared to the conventional terrestrial and satellite systems ...
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A Novel Design of Arbitrary Shaped Cells for Efficient Coverage from High Altitude Platforms
... Abstract—This paper proposes a novel beamforming technique to form an arbitrary-shaped cell for the high altitude platforms (HAPs) mobile communications. The new technique is based on pattern ...
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1. Impact of High-Altitude Platforms Rotation on Cellular Mobile Communications
... Abstract: High-Altitude Platforms (HAP) is an emerging technology for mobile broadband communications and is capable of providing many advantages compared to conventional terrestrial and satellite ...
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Improving the system capacity of broadband services using multiple high-altitude platforms
... use high-altitude platforms (HAPs), which are either airships or planes that will operate in the stratosphere, 17–22 km above the ground ...Such platforms will have a rapid roll-out capability ...
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High Altitude Platforms for Disaster Recovery: Capabilities, Strategies, and Techniques for Emergency Telecommunications
... debilitated. High altitude platforms could be fitted with telecommunications equipment and used to support these critical communications missions once the catastrophic event ...over high-risk ...
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A BRIEF OVERVIEW ON HIGH ALTITUDE PLATFORMS(HAPs)
... Wireless communication has stood out as one of the fastest and rapidly growing segment of the communications industry with the ability to provide high speed, quality and real-time information exchange between ...
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Optimizing radio resources for multicasting on high altitude platforms
... HAP: High-altitude platform; ITU: International telecommunications institute; ITU-R: International telecommunications institute-radio communications; LEO: Low earth orbit; ...
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A Novel Technique to improve the Performance of Wireless Sensor Network using Adaptive Antennas and High Altitude Platform Communications
... In this paper, the performance of Wireless Sensor Networks (WSN) is improved using adaptive antenna technique and High-Altitude Platforms Systems (HAP). An adaptive concentric circular array (ACCA) ...
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An Efficient Technique for Digital Video Broadcasting Using High-Altitude Aerial Platforms and Adaptive Arrays
... km altitude from Earth can provide 42% of the earth’s ...Recently, High- Altitude Platforms (HAP) is proposed for many communications applications including the provision of mobile, data, and ...
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Evaluation of Components of High Altitude Stratospheric Airship.
... an altitude of 20 km from the sea ...the high altitude unfortunately leads to unavoidable space-like challenges as ...pressure, high solar irradiance, and intense ultraviolet (UV) ...other ...
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Optimizing an array of antennas for cellular coverage from a high altitude platform
... W ITH AN ever increasing demand for capacity for future generation multimedia applications, service providers are looking toward the millimetric wave bands. One possible means of their exploitation is the use of ...
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Determining areas that require indoor insecticide spraying using Multi Criteria Evaluation, a decision-support tool for malaria vector control programmes in the Central Highlands of Madagascar
... During the first cycle of the vector control programme, the major criterion used for the inclusion of a village was sim- ply being at an altitude between 1,000 m and 1,500 m [6]. This resulted in huge areas ...
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Multi beam coverage and beamforming technology for high altitude platform station communication system
... Multi-beam antenna technology has an automatic adap- tive beam steering function, which actually concentrates the transmit power in other directions to the main beam direction for directional transmission. Therefore, ...
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Hydro Power Development in the Himalayan High Altitude Ecosystems Hydro Power Development in the Himalayan High Altitude Ecosystems
... Intensive development approach in high altitude ecosystem may have adverse impacts in a long term scenario. Due to the difficult monitoring circumstances there is not only scarcity of long range datasets, ...
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High Altitude Research In India And Neighbouring Countries
... of altitude acclimatization in the eastern Himalayas and observed that acclimatization to a mid-altitude of 3445 could be safely avoided where immediate ascent to higher altitude was ...at ...
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A passive high altitude deorbiting strategy
... an altitude where orbit decay due to atmospheric drag can be guaranteed because they characteristically do not accommodate a propulsion system to perform orbital ...
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Stroke at high altitude: Garhwal region, north India
... from high altitude area, compared to 1.05/1000 in non high altitude area as per Jha et ...from high altitudes of Eastern Garhwal region in the State of Uttarkhand, North ...
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Limits of human lung function at high altitude
... at high levels of work, successful gas exchange at the alveolar–capillary membrane is necessary to achieve an adequate supply of oxygen to the tissues and for the elimination of carbon ...
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Incorporation of High Altitude Balloon Experiment in High School Science Classrooms
... versus altitude; to make predictions about the temperature inflection point and its dependence on weather, seasons, and time of day; and to infer characteristics of the troposphere from this measurement ...
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Sizing and Sensitivity Analyses of High Altitude Airship
... [5] Alam, M. I., and Pant, R. S., “A Methodology for Sizing and Optimization of High Altitude Airship”, AIAA 2013-1363, Proceedings of AIAA 20th Lighter-Than-Air Systems Technology (LTA) Conference, Daytona ...
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