Tagged Questions
-1
votes
1answer
302 views
Does GPS Navigator send data to Satellite?
Does GPS Navigator send data to satellite?
Is this true about regular devises available in the market?
1
vote
1answer
639 views
How do I calculate ECEF X,Y,Z velocities for GPS if I have no satellites
I'm attempting to simulate a GPS message where know variables are starting location, ending location, speed (m/s), and a bearing (0 - 359 degrees). How can I calculate the ECEF X, Y, Z velocities ...
3
votes
1answer
858 views
GPS Module Without Velocity or Altitude Limitations
I am looking for a GPS module that I can use in a high-altitude project. The problem I have discovered is that GPS manufacturers are required to place a set of restrictions on GPS modules. The ...
13
votes
4answers
2k views
Why is GPS a free service?
The Global Positioning System (GPS) is a free service that is owned and operated by the U.S. Government and is always available.
When we buy a GPS device, we don't pay a monthly fee or pay a tax for ...
3
votes
1answer
196 views
What is the DNSC08 Mean sea surface model ellipsoid based on?
Does anyone know what Danish Space centre DNSC08 mean sea surface model uses as the reference ellipsoid? there is no meta data on the web site:
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