30-05-2012, 10:39 AM
High Altitude Aeronautical Platform Station HAAPS
[attachment=23445]
What is 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 17 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.
Why HAAPS ?
It combines most of the advantages of satellite and terrestrial systems while avoiding many of the pitfalls.
These are, generally, solar-powered, unmanned, remote-operated and electric motor propelled aerial platforms held in a quasi – stationary position, at altitudes between the 17 – 22 Km range above the earth’s surface (stratospheric layer of the atmosphere).
Architecture
Positioned above the coverage area.
The types of HAAPS are Lighter-than air HAAPS are kept stationary, 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.
In the case of a moving HAAP it would also be necessary to compensate motion by electronic or mechanical means.
Power System & Mission Requirements
Aircraft power system has photovoltaic cells and regenerative fuel cell. for the power system.
One method of supplying power for this type of aircraft is to use solar photovoltaic (PV) cells.
Solar powered aircraft should be capable of continuous flight, enough energy must be collected and stored at day to both power the aircraft and to enable the aircraft to fly throughout the night.
The propulsion system consists of an electric motor, gear box and propeller.
[attachment=23445]
What is 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 17 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.
Why HAAPS ?
It combines most of the advantages of satellite and terrestrial systems while avoiding many of the pitfalls.
These are, generally, solar-powered, unmanned, remote-operated and electric motor propelled aerial platforms held in a quasi – stationary position, at altitudes between the 17 – 22 Km range above the earth’s surface (stratospheric layer of the atmosphere).
Architecture
Positioned above the coverage area.
The types of HAAPS are Lighter-than air HAAPS are kept stationary, 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.
In the case of a moving HAAP it would also be necessary to compensate motion by electronic or mechanical means.
Power System & Mission Requirements
Aircraft power system has photovoltaic cells and regenerative fuel cell. for the power system.
One method of supplying power for this type of aircraft is to use solar photovoltaic (PV) cells.
Solar powered aircraft should be capable of continuous flight, enough energy must be collected and stored at day to both power the aircraft and to enable the aircraft to fly throughout the night.
The propulsion system consists of an electric motor, gear box and propeller.