|
Books > Social sciences > Education
|
Buy Now
First Experimental Demonstration of Full-Duplex Optical Communication on a Single Beam (Paperback)
Loot Price: R1,382
Discovery Miles 13 820
|
|
|
First Experimental Demonstration of Full-Duplex Optical Communication on a Single Beam (Paperback)
Expected to ship within 10 - 15 working days
|
The satellite industry is driven by the need to reduce costs. One
way they have sought to do this is by reducing the size and weight
of the satellite because of the extremely high cost per kilogram
incurred launching a payload into orbit. The main difficulty in
this approach is the lack of power capacity in a small satellite.
One of the largest loads on a satellite's power system is the
communications system. This has driven the need for a low-power
communications system. This document examines a novel method of
communicating optically with a low-Earth-orbit satellite from the
ground without the need for a laser on the payload. The goal is to
show the feasibility of such a system as a solution to the small
satellite low-powered communication problem. Specially, that the
system described herein: is capable of ground to low-Earth-orbit
communications, has very little space-borne mass, and draws little
power from the satellite. First, the system (hereafter referred to
as LOWCAL "Lightweight Optical Wavelength Communication without A
Laser in space") will be explained with details of the formats used
and the link budgets. Discussions will be presented on the
development of some of the system hardware (the laser diode driver,
liquid crystal driver, and decision electronics for both the up and
down links.) Finally, experimental test results of the entire
system operating in a laboratory environment are presented and
compared to theory. The results of the laboratory experiment
support the original thesis: retro-modulated optical communications
can meet the needs of the small satellite community. The system is
capable of 10-kbps communication, has low space-borne mass, and
draws little power from the satellite (less than 100-mW measured
for the laboratory experiment, less than 1.5-W calculated for the
Shuttle experiment).
General
Is the information for this product incomplete, wrong or inappropriate?
Let us know about it.
Does this product have an incorrect or missing image?
Send us a new image.
Is this product missing categories?
Add more categories.
Review This Product
No reviews yet - be the first to create one!
|
You might also like..
|
Email address subscribed successfully.
A activation email has been sent to you.
Please click the link in that email to activate your subscription.
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
(1)
