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22-02-2009, 01:11 AM
Post: #1
Music HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
INTRODUCTION

HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS)

High Altitude Aeronautical Platform Stations (HAAPS) is the name of a technology for providing wireless narrowband and broadband telecommunication services as well as broadcasting services with either airships or aircrafts. The HAAPS are operating at altitudes between 3 to 22 km. A HAAPS shall be able to cover a service area of up to 1'000 km diameter, depending on the minimum elevation angle accepted from the user's location. The platforms may be airplanes or airships (essentially balloons) and may be manned or un-manned with autonomous operation coupled with remote control from the ground. HAAPS mean a solar-powered and unmanned airplane or airship, capable of long endurance on-station “possibly several years.

A high altitude telecommunication system comprises an airborne platform “ typically at high atmospheric or stratospheric altitudes “ with a telecommunications payload, and associated ground station telecommunications equipment. The combination of altitude, payload capability, and power supply capability makes it ideal to serve new and metropolitan areas with advanced telecommunications services such as broadband access and regional broadcasting. The opportunities for applications are virtually unlimited. The possibilities range from narrowband services such as paging and mobile voice to interactive broadband services such as multimedia and video conferencing. For future telecommunications operators such a platform could provide blanket coverage from day one with the added advantage of not being limited to a single service. Where little or unreliable infrastructure exists, traffic could be switched through air via the HAAPS platform. Technically, the concept offers a solution to the propagation and rollout problems of terrestrial infrastructure and capacity and cost problems of satellite networks. Recent developments in digital array antenna technology make it possible to construct 100+ cells from one platform. Linking and switching of traffic between multiple high altitude platforms, satellite networks and terrestrial gateways are also possible. Economically it provides the opportunity for developing countries to have satellite-like infrastructure without the funds flowing out of the country due to gateways and control stations located outside of these countries.

GENERAL ARCHITECTURE

A typical HAAP-based communications systems structure is shown .


HAAP Feeder-band beam


User-band
Beam
Public/Private networks

Coverage Area
The platform is positioned above the coverage area. There are basically two types of HAAPS. Lighter-than air HAAPS are kept stationary, while airplane-based HAAPS are flown in a tight circle. For broadcast applications, a simple antenna beams signals to terminals on the ground. For individualized communication, such as telephony, "cells" are created on the ground by some beam forming technique in order to reuse channels for spatially separated users, as is done in cellular service. Beam forming can be as sophisticated as the use of phased-array antennas, or as straightforward as the use of lightweight, possible inflatable parabolic dishes with mechanical steering. In the case of a moving HAAP it would also be necessary to compensate motion by electronic or mechanical means in order to keep the cells stationary or to "hand off" connections between cells as is done in cellular telephony.



HALO NETWORK CONCEPTS

High-Altitude Long Operation (HALO) aircraft present a new layer in the hierarchy of wireless communications -- a 10-mile tall tower in the stratosphere above rain showers and below meteor showers (i.e., high above terrestrial towers and well below satellite constellations).



HALO airplane will be the central node of a wireless broadband communications network. The HALO Network, whose initial capacity will be on the scale of 10 Gbps, with a growth potential beyond 100 Gbps. The packet-switched network will be designed to offer bit rates to each subscriber in the multimegabit-per-second range.

The airplane's fuselage can house switching circuitry and fast digital network functions. A MMW antenna array and its related components will be located in a pod suspended below the aircraft fuselage. The antenna array will produce many beams -- typically, more than 100. Broadband channels to subscribers in adjacent beams will be separated in frequency. For the case of aircraft-fixed beams, the beams will traverse over a user location, while the airplane maintains stationary overhead, and the virtual path will be changed to accomplish the beam-to-beam handoff. The aircraft will fly above commercial airline traffic, at altitudes higher than 51,000 feet. For each city to be served, a fleet of three aircraft will be operated in shifts to achieve around-the-clock service. Flight operational tactics will be steadily evolved to achieve high availability of the node in the stratosphere.
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02-03-2009, 02:26 PM
Post: #2
Sad RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract
Hi dear..whats the passowrd. The zip folder is asking for passowrd.
02-03-2009, 06:45 PM
Post: #3
Heart RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
Dear no Password is asking

I Cheked again and again

Thats may be because of You Not Downloaded The Full file
Or Your Unzip Software Fault

Please Use Search http://www.seminarprojects.com/search.php wisely To Get More Information About A Seminar Or Project Topic
17-07-2010, 08:04 PM
Post: #4
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
wow wonderful report....
i need more information abt haaps
20-07-2010, 05:13 PM
Post: #5
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
this was really helpful
14-08-2010, 10:13 AM
Post: #6
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
i need ppt 4r dis topic urgently by sunday..... plz provide me
17-08-2010, 07:14 AM
Post: #7
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
please send me the link for this ppt n seminar
18-08-2010, 07:11 PM
Post: #8
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract
PLEASE SEND ME THE SEMINAR REPORT OF "HIGH ALTITUDE AERONAUTICAL PLATFORMS".
18-08-2010, 07:27 PM
Post: #9
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract
Hi, this thread has the seminar report of HAAPS:
http://www.seminarprojects.com/Thread-hi...nar-report

Please Use Search http://seminarprojects.com/search.php wisely To Get More Information About A Seminar Or Project Topic
21-08-2010, 10:39 PM
Post: #10
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
hiiiii sindhuja dis haap technology
21-09-2010, 06:27 PM
Post: #11
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
hiiiii i want ppt for haaps plz..... send me the ppt my email id is sagar.suryawanshi6[at]gmail.com
04-10-2010, 11:33 PM
Post: #12
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
hiiiii i want ppt for haaps plz..... send me the ppt my email id is sonnetasdf[at]yahoo.co.in
12-10-2010, 01:49 PM
Post: #13
Wink RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
guud hoooooolaaaaaaaaaaa
09-12-2010, 04:16 PM
Post: #14
Thumbs Up RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
hi.....................
13-12-2010, 11:01 AM
Post: #15
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
hi
pls go through the following threads for more details
http://www.seminarprojects.com/Thread-hi...ort?page=2
http://www.seminarprojects.com/Thread-hi...-platforms
16-02-2011, 06:53 PM
Post: #16
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
Can i get a ppt abt HAAPS..
18-02-2011, 08:40 PM
Post: #17
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
i need complete information on this topic.. that is pdf and ppt with respect to this topic...
20-02-2011, 07:55 PM
Post: #18
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
please send me full details on HAAPS
04-03-2011, 03:04 PM
Post: #19
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
please mail me full seminar report of HIGH ALTITUDE AERONAUTICAL PLATFORM STATION.
20-04-2011, 11:07 AM
Post: #20
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
hi
you can refer these pages to get the details on high-altitude-aeronautical platforms

http://www.seminarprojects.com/Thread-hi...nar-report

http://www.seminarprojects.com/Thread-hi...ort?page=2

http://www.seminarprojects.com/Thread-hi...-platforms

http://www.seminarprojects.com/Thread-hi...d-abstract

http://www.seminarprojects.com/Thread-hi...781#pid781
20-09-2012, 12:08 PM
Post: #21
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS)


.docx  HAAPS.docx (Size: 175.2 KB / Downloads: 22)

INTRODUCTION

High Altitude Aeronautical Platform Stations (HAAPS) is the name of a technology for providing wireless narrowband and broadband telecommunication services as well as broadcasting services with either airships or aircrafts. The HAAPS are operating at altitudes between 3 to 22 km. A HAAPS shall be able to cover a service area of up to 1'000 km diameter, depending on the minimum elevation angle accepted from the user's location. The platforms may be airplanes or airships (essentially balloons) and may be manned or un-manned with autonomous operation coupled with remote control from the ground. HAAPS mean a solar-powered and unmanned airplane or airship, capable of long endurance on-station –possibly several years.
A high altitude telecommunication system comprises an airborne platform – typically at high atmospheric or stratospheric altitudes – with a telecommunications payload, and associated ground station telecommunications equipment. The combination of altitude, payload capability, and power supply capability makes it ideal to serve new and metropolitan areas with advanced telecommunications services such as broadband access and regional broadcasting. The opportunities for applications are virtually unlimited. The possibilities range from narrowband services such as paging and mobile voice to interactive broadband services such as multimedia and video conferencing. For future telecommunications operators such a platform could provide blanket coverage from day one with the added advantage of not being limited to a single service. Where little or unreliable infrastructure exists, traffic could be switched through air via the HAAPS platform. Technically, the concept offers a solution to the propagation and rollout problems of terrestrial infrastructure and capacity and cost problems of satellite networks. Recent developments in digital array antenna technology make it possible to construct 100+ cells from one platform. Linking and switching of traffic between multiple high altitude platforms, satellite networks and terrestrial gateways are also possible. Economically it provides the opportunity for developing countries to have satellite-like infrastructure without the funds flowing out of the country due to gateways and control stations located outside of these countries.

Service attributes

Various classes of service can be provided to subscribers sharing the bandwidth of a given beam, for example, 1 to 10 Mbps peak data rates to small businesses, and 10 to 25 Mbps peak data rates to business users with larger bandwidth appetites. Because each link can be serviced according to "bandwidth on demand," the bandwidth available in a beam can be shared between sessions concurrently active within that beam. While the average data rate may be low for a given user, the instantaneous rate can be grown to a specified upper bound according to demand. A dedicated beam service can also be provided to those subscribers requiring 25-155 Mbps.

HALO aircraft

The HALO aircraft is being flight-tested in Mojave, California. The first flight was accomplished there in July 1998 and the flight envelope is being steadily expanded. The aircraft has been specially designed for the HALO Network and it can carry a large pod suspended from the underbelly of its fuselage. If encountering a persistent wind at altitude, the aircraft will vary its roll angle as it attempts to maintain its station. Various antenna concepts allow the signal footprint to be maintained on the ground as the airplane rolls.

Communications Pod

The HALO Network will use an array of narrow beam antennas on the HALO aircraft to form multiple cells on the ground. Each cell covers a small area, e.g., several to several tens of square miles. The wide bandwidths and narrow beam widths of each beam or cell are achieved by using MMW carrier frequencies. Small aperture antennas with high gains can be used at opposite ends of the subscriber link, corresponding to the user terminal and the airborne antenna.

Subscriber units (user terminals)

The user terminal entails three major sub-groups of hardware: the radio frequency unit (RU), which contains the MMW Antenna and MMW Transceiver, the Network Interface Unit (NIU), and the application terminals such as PCs, telephones, video servers, video terminals, etc. The RU consists of a small dual-feed antenna and MMW transmitter and receiver mounted to the antenna. An antenna tracking unit uses a pilot tone transmitted from the HALO aircraft to point its antenna at the airplane.
The MMW transmitter accepts an L-band intermediate frequency (IF) input signal from the network interface unit (NIU), translates it to MMW frequencies, amplifies the signal using a power amplifier to a transmit-power level of 100 - 500 mW, and feeds the antenna. The MMW receiver couples the received signal from the antenna to a Low Noise Amplifier (LNA), down converts the signal to an L-band IF, and provides subsequent amplification and processing before outputting the signal to the NIU. The MMW transceiver will process a single channel at any one time, perhaps as narrow as 40 MHz. The particular channel and frequency are determined by the NIU.
03-10-2012, 03:09 PM
Post: #22
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS)
HIGH ALTUTUDE AERONAUTICALPLATFORMS



.docx  HIGH ALTUTUDE.docx (Size: 81.91 KB / Downloads: 16)

ABSTRACT:

Today global communications infrastructures of landlines, cellular towers, and satellites are inadequately equipped to support the increasing worldwide demand for faster, better, and less expensive service. At a time when conventional ground and satellite systems are facing increasing obstacles and spiraling costs, a low cost solution is being advocated. This seminar focuses on airborne platforms-airships, planes, helicopters or some hybrid solutions which could operate at stratospheric altitudes for significant periods of time, be low cost and be capable of carrying sizable multipurpose communications payloads. The airborne-internet aircraft will circle overhead at an altitude of 52,000 to 69,000 feet (15,849 to 21,031 meters0. At this altitude, the aircraft will be undisturbed by inclement weather and flying well above commercial air traffic. This type of network is called HALO Network.

Introduction

High altitude aeronautical platforms (HAAPS):

Here I mainly discuss about the general architecture and coverage area, High Altitude Aeronautical Platform Stations (HAAPS) is the name of a technology for providing wireless narrowband and broadband telecommunication services as well as broadcasting services with either airships or aircrafts. The HAAPS are operating at altitudes between 3 to 22 km. A HAAPS shall be able to cover a service area of up to 1'000 km diameter; the platforms may be airplanes or airships (essentially balloons) and may be manned or un-manned with autonomous operation coupled with remote control from the ground. Haaps mean a solar-powered and unmanned airplane or airship, capable of long endurance on-station possibly several years. A high altitude telecommunication system comprises an airborne platform typically at high atmospheric or stratospheric altitudes with a telecommunications payload, and associated ground station telecommunications equipment. The combination of altitude, payload capability, and power supply capability makes it ideal to serve new and metropolitan areas with advanced telecommunications services such as broadband access and regional broadcasting. A typical HAAP-based communications systems structure is shown in figure 1.

Hallo Network Concepts:

High-Altitude Long Operation (HALO) aircraft present a new layer in the hierarchy of wireless communications -- a 10-mile tall tower in the stratosphere above rain showers and below meteor showers. HALO airplane will be the central node of a wireless broadband communications network. The HALO Network, whose initial capacity will be on the scale of 10 Gbps, with a growth potential beyond 100 Gbps. In figure 2 we will see the stratospheric communications layer in Halo Network. The High Altitude Long Operation (HALO) Network is a broadband wireless metropolitan area network (MAN). The halo network combines the advantages of two well-established wireless communications: satellite networks and terrestrial wireless networks like cellular and personal communication systems. Satellite networks was developed at the low earth orbit (LEO), medium earth orbit (MEO), high elliptic orbit (HEO), geosynchronous earth orbit (GEO).

Ground Installation:

The figure 4 shows the ground installation of mobile switching centers, communication between the HAAP and the ground would typically be concentrated into a single ground installation or perhaps into two locations for redundancy. There would be considerable advantage to collocating RF units, base stations and mobile switching centers (MSCs).

Power System & Mission Requirements:

The figure 6 shows various power system components and mission requirements affect the sizing of a solar powered long endurance aircraft. The aircraft power system consists of photovoltaic cells and a regenerative fuel cell. Due to the high altitude at which these aircraft will be required to fly (20 km or higher) and the required endurance (from a few weeks to a year) the method of propulsion is the major design factor in the ability to construct the aircraft.

Conclusion:

The HALO network will provide wireless broadband communication services. The HALO network has several advantages over terrestrial wireless networks. The latter have complex geometries involving many base stations interlinked by cabling or microwaves. Moreover, each time cell splitting is used to increase system capacity, the network can demand significant reengineering. The HALO Network has striking advantages over proposed large LEO (LOWER EARTH ORBIT) constellations, including ease of repair and rapidly evolving performance.
15-10-2012, 03:56 PM
Post: #23
RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report )
High Altitude Aeronautical Platform Stations (HAAPS)


.docx  High Altitude Aeronautical.docx (Size: 12.63 KB / Downloads: 19)

ABSTRACT

High Altitude Aeronautical Platform Stations (HAAPS) is the name of a technology for providing wireless narrowband and broadband telecommunication services as well as broadcasting services with either airships or aircrafts. The HAAPS are operating at altitudes between 3 -22 km. A HAPS shall be able to cover a service area of up to 1000 km diameter, depending on the minimum elevation angle accepted from the user's location. The platforms may be airplanes or airships (essentially balloons) and may be
manned or un-manned with autonomous operation coupled with remote control from the ground. While the term HAP may not have a rigid definition, we take it to mean a solar-powered and unmanned airplane or airship, capable of long endurance on-station -possibly several years.
Various types of platform options exist: Sky Station™, the Japanese Stratospheric Platform Project, the European Space Agency (ESA) and others suggest the use of airships/blimps/dirigibles. These will be stationed at 21km and are expected to remain aloft for about 5 years. Angel Technologies (HALO™), AeroVironment/ NASA (Helios) and the European Union (Heliplat) propose the use of high altitude long endurance aircraft. The aircraft are either engine or solar powered and are stationed at 16km (HALO) or 21km (Helios). Helios is expected to stay aloft for a minimum of 6 months whereas HALO will have 3 aircraft flying in 8- hour shifts. Platforms Wireless International is implementing a tethered aerostat situated at ~6km.
A high altitude telecommunication system comprises an airborne platform - typically at high atmospheric or stratospheric altitudes - with a telecommunications payload, and associated ground station telecommunications equipment. The combination of altitude, payload capability, and power supply capability makes it ideal to serve new and metropolitan areas with advanced telecommunications services such as broadband access and regional broadcasting. The opportunities for applications are virtually unlimited. The possibilities range from narrowband services such as paging and mobile voice to interactive broadband services such as multimedia and video conferencing.
03-02-2015, 07:47 PM
Post: #24
Question RE: HIGH ALTITUDE AERONAUTICAL PLATFORMS (HAAPS) (Download Full Report And Abstract)
Plz give me a ppt and report of HAAPS
12-03-2015, 11:35 PM
Post: #25
(HAAPS)
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