Beta

×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

(Yet Another) Space-based navigation system

RockDoctor (15477) writes | about a year and a half ago

Technology 0

RockDoctor (15477) writes "A proposal has been, uh, proposed for a relatively low-cost method for producing regional satellite-based location system. Instead of putting up an expensive constellation of atomic-clock-carrying satellites in near-polar orbits, the proposal is to send timing signals from ground-based atomic clocks, to pre-existing geostationary satellites with poor latitude control. The "geostationary" satellites re-transmit the timing signals to earth, and triangulation then supplies location from the arrival times of the signals at the receiver.
The proposal paper on Arxiv also suggests that, since most existing communications satellites are designed for 2-way communications, this could provide a "cheap" back channel for (say) location-enabled emergency communications."

Link to Original Source

cancel ×

0 comments

Sorry! There are no comments related to the filter you selected.

Check for New Comments
Slashdot Login

Need an Account?

Forgot your password?
or Connect with...

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>