[FOSS-GPS] GPS in space?
Marcus at wolschon.biz
Thu Nov 6 07:55:34 EST 2008
2008/11/6, Martin Vermeer <martin.vermeer at tkk.fi>:
> Then there is the CHAMP mission for mapping the Earth's gravitational
> field, where precise GPS is used to determine the satellite's
> gravitational acceleration. It is in free fall so senses the field
> directly -- any nongravitational accelerations by atmospheric drag etc.
> are directly sensed by an on-board accelerometer.
> All these are "low" orbits.
Here are more detailed information about the
GPS-Receiver used in CHAMP. It can do a "bit" more
then just calculate a location.
It is used in combination with the STAR electrostatic micro-accelerometer.
More information about the FOSS-GPS