October 3, 2011 § Leave a comment

A Global Navigation Satellite System (GNSS), is a global system of satellites that provide geo-spatial positioning.

All satellites are synchronized via atomic clock. Times are compared with time-to flight. Measurements are made at the same time to different satellites, generate a continual fix in real time using an adapted version of trilateration (the process of determining absolute or relative locations of points by measurement of distances, using the geometry of circles, spheres, or triangles).

The United State’s NAVSTAR Global Positioning System (GPS), is the only fully operational GNSS as of 2010.

WIKI – Satellite Navigation

(Trimble has explains GPS here.)


Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s

What’s this?

You are currently reading GNSS at DECO } Han.