Go Back   IceInSpace > General Astronomy > Astronomy and Amateur Science

Reply
 
Thread Tools Rate Thread
  #1  
Old 20-02-2019, 12:23 PM
gary
Registered User

gary is offline
 
Join Date: Apr 2005
Location: Mt. Kuring-Gai
Posts: 5,100
Cool Space communication system using X-rays to be demonstrated on ISS

When it comes to wireless communications, the choice of X-ray
wavelengths aren't a part of the electromagnetic spectrum that first
comes to mind.

However, NASA is about to demonstrate X-ray communications in space
using experimental technology on the International Space Station.

So why X-rays?

Space communications has long exploited L-band, at 1 GHz for systems
such as GPS, S-band, at 2 GHz, which was used on the Apollo missions,
Ku-band at up to 18 GHz for broadcast services and even Ka-band, up to
31 GHz, which state-of the-art communications satellites such as the NBN
Sky Muster satellite deploy.

In the electromagnetic spectrum, light is at even higher frequencies
from 3 THz in the far infrared (1 Tera Hertz = 1000 Giga Hertz) to 30 PHz
in the extreme ultraviolet (1 Peta Hertz = 1000 Tera Hertz).

X-rays are at even higher frequencies still, with soft X-rays starting at
300 PHz.

So X-rays have the potential to provide faster rates of information
transfer, tighter beams for more secure links and the ability to
communicate in previously unavailable regions, such as
through RF blocking plasma sheaths whilst a vehicle is
undergoing re-entry.

All this is made possible by advances such as microelectronic devices
fabricated using extreme ultraviolet lithography and the emerging
field of diffraction-limited X-ray optics.

NASA today have issued a press release of the experiments that
will be conducted on board the ISS using what they term 'XCOM'.

Press release here :-
https://www.nasa.gov/feature/goddard...tions-in-space

Background paper "The Role of X-rays in Future Space Navigation
and Communication" by Winternitz et. al. 2013 :-
https://ntrs.nasa.gov/archive/nasa/c...0160000804.pdf
Reply With Quote
  #2  
Old 21-02-2019, 01:09 PM
AndyG's Avatar
AndyG (Andy)
No. I am a meat popsicle.

AndyG is offline
 
Join Date: Aug 2017
Location: Townsville
Posts: 355
Quote:
Originally Posted by gary View Post
So X-rays have the potential to provide faster rates of information
transfer, tighter beams for more secure links and the ability to
communicate in previously unavailable regions, such as
through RF blocking plasma sheaths whilst a vehicle is
undergoing re-entry.
Guaranteed funding on this point alone. They've been chasing ways to provide remote terminal guidance to ICBM payloads since the beginning. That, and enhanced communication for upcoming hypersonic products will probably apply.

Thanks again Gary, I love these articles!
Reply With Quote
Reply

Bookmarks

Thread Tools
Rate This Thread
Rate This Thread:

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +10. The time is now 06:04 PM.

Powered by vBulletin Version 3.8.7 | Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Advertisement
SkyWatcher Australia
Advertisement
Lunatico Astronomical
Advertisement
Bintel
Advertisement
NexDome Observatories
Advertisement
Meade Australia
Advertisement
OzScopes Authorised Dealer
Advertisement
Nitecore
Advertisement
Astronomy and Electronics Centre
Advertisement