A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Space Science » Policy
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

Global wireless hotspot



 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old January 2nd 08, 03:33 AM posted to sci.space.policy
[email protected]
external usenet poster
 
Posts: 1,465
Default Global wireless hotspot

A broadband satellite network to provide direct to user internet
services is possible. Similar to the satellite networks proposals of
the 1990s - such as Teledesic,

http://en.wikipedia.org/wiki/Teledesic

These satellites would each have a significant phased array antenna to
communicate with the ground

http://en.wikipedia.org/wiki/Phased_array

combined with an open optical laser link, to communicate satellite to
satellite with a 20 THz communications backbone.

http://en.wikipedia.org/wiki/Fiber-optic_communication
http://lasers.jpl.nasa.gov/

As the satellites fly overhead, they GPS signals to calculate control
signals for their phased array antenna system. Each phased array
antenna 'paints' a frequency corrected pattern of virtual cells -
fixed with respect to the surface of the Earth. In this way, a very
sophisticated and powerful satellite communicates with a large number
of simple (IEEE 803B compliant) wireless communicators.

A network of 660 satellites in 30 sun synchronous polar orbits (22
each) This URL is a visualization of Teledesic's proposed 288
satellite constellation (24 satellites in 12 orbits)

http://web.archive.org/web/199902091...tech/viz1.html

The proposed system provides 50 billion broadband wireless channels
that can be used to provide instantaneous communications anywhere in
the world. The satellites will be built in a factory intended to mass
produce them in large numbers. This will form the basic structure of
satellites and their components in the future - for production runs
beyond the initial 660 units. The satellites are expected to cost $20
million each in quantity. The factory itself will cost $4 billion.
A total of $17.2 billion for the payloads.

Satellite integration and launch is expected to cost an additional $30
million er satellite, aboard a new seven element RLV. This RLV
consists of 7 reusable propellant tanks equipped with cross-feeding.

http://www.astronautix.com/craft/bonhicle.htm

A 3,800 metric ton vehicle, consisting of 7 elements, each 500 metric
tons in mass, carrying a 300 metric ton reusable module, which itself
is capable of carrying 22 satellites, each 10 metric tons in mass.


http://www.pratt-whitney.com/vgn-ext...00c45a529fRCRD

http://www.astronautix.com/engines/aeroster.htm

Each 500 metric ton element is propelled by an annular aerospike
engine that uses three RS-68 pump-sets and control systems to produce
up to 910 metric tons of thust at lift off. Seven of these highly
throttlable engines operate at vehicle lift off, to put up one orbital
plane per launch, with complete recovery of the vehicle. In this
way, 30 launches put up the entire system in 15 months, with 21
vehicle elements, comprising 3 complete vehicles, with 7 element
spares (1 vehicle spare)

At $30 million per satellite, this is $19.2 billion for the entire
launch program, which includes vehicle development engineering, and
launch center construction near the White Sands Missle Range in New
Mexico. Once the 660 satellite have been launched and are
operational, this infrastructure continues to support satellite
operations as well as other operations beyond Earth. The reusable
satellite module, which is designed for aerodynamic re-entry into
Earth's atmosphere, may be adapted for use in Martian atmosphere to
support a manned operation to mars using the same launcher. Variants
would also support space tourism to orbit, and a tourist return to the
moon.

In all the $33 billion satellite network would return $50 billion per
year in revenues, with less than $0.5 billion spent on system
maintenance. (10 spares per year replacements - launched one at a
time with a 3 element system and a subscale re-entry vehicle)

An upgraded and 'stretched' version of this vehicle would deploy 500
metric ton powersatellite test articles into Geosynchronous orbit.
These systems beam IR laser energy to remote solar panel locations to
increase the value of large terrestrial power stations operated by The
Mok Companies around the world. Successful testing would begin
deployment of a network of 3,600 powersats in GEO each capable of
beaming 20 GW of laser energy to one of hundreds of sites throughout
the world - greatly expanding the energy resources of the global
community.

An advanced powersat designed for operation at an orbit 3 million km
above the solar surface, is also deployed by this launcher system.
Sending a payload to Jupiter which subtracts away nearly all its
orbital energy through gravity slingshot effect, the payload falls
almost directly to the sun. As it passes with 3 million km of the
solar surface, the spacecraft extends a large solar sail, which it
uses to lower its apoapsis to form a 1 hour circular orbit above the
solar surface. The test satellite when orbiting this close to sun,
tests out various methods of efficiently using the intense solar
energy found there, to manufacture 1 kilogram of anti-matter in less
than 3 years. The anti-matter powers an advanced rocket which brings
the entire assembly back to the lunar surface for testing and
evaluation. Over 800 kg of anti-matter are stored aboard the
spacecraft for use use in other missions. Primary, a mission to
Ceres - with the goal of reforming that dwarf planet to human use.

The wireless broadban system which provides real time communications
across the entire surface of the Earth, will make over $50 billion per
year from selling the basic communications services. Additional money
can be made by providing banking, insurance, management and security
services throughout the globe that are ill served now. In this way
underdeveloped regions and regions ill-served by existing governments,
can be better served by a wide range of commercial services. Over
$500 billion may be created in this way, while multiplying the wealth
of those being served even more dramatically.

Beyond these space research actvities and information intensive
services the company will also use profits earned from the network to
develop telepresence and telerobotic services.

http://en.wikipedia.org/wiki/Telerobot
http://en.wikipedia.org/wiki/Telepresence

This allows people to live anywhere and work anywhere else over this
service. This provides an additional $1,000 billion in revenue
capacity, while multiplying the value of the world some four times to
$240 trillion per year.

http://www.stereo3d.com/hmd.htm
http://www.motion-capture-system.com/index.php
http://world.honda.com/ASIMO/


 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is wireless astrophotography possible? [email protected] Amateur Astronomy 9 August 13th 07 06:03 AM
spectral hotspot in Cygnus nytecam Amateur Astronomy 0 November 21st 05 08:00 PM
Wireless Observatory Robert Williams UK Astronomy 5 September 11th 04 06:32 PM
Wireless network to a scope Peter Scheuter Amateur Astronomy 17 October 14th 03 10:26 PM
Wireless in Space Stephen Souter Policy 3 July 28th 03 07:06 PM


All times are GMT +1. The time now is 05:46 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 SpaceBanter.com.
The comments are property of their posters.