Re: GPS Tip: Increasing accuracy for a single location
- From: Sam Wormley <swormley1@xxxxxxxxx>
- Date: Thu, 09 Feb 2006 18:20:56 GMT
John Tyson wrote:
There is a 6 hour semi-periodic cycle in GPS location errors due to
the satellite orbital periods which ideally you want to sample
beyond.
When you say "6 hour semi-periodic" what would be a "full period"? My understanding from earlier threads is that the satellite orbits are 12 hours, but with the earth's rotation you will be on the opposite side after one orbit and will only see the same satellite configuration every 24 hours.
John
For a given location on the earth, the constellation pattern
repeats every 23h 56m.
The diurnal pattern of night and day, the sun's effect on the
earth's ionosphere will have a far greater effect on positional
accuracy.
.
- References:
- GPS Tip: Increasing accuracy for a single location
- From: Sam Wormley
- Re: GPS Tip: Increasing accuracy for a single location
- From: Heinrich Pfeifer
- Re: GPS Tip: Increasing accuracy for a single location
- From: Chris Malcolm
- Re: GPS Tip: Increasing accuracy for a single location
- From: John Tyson
- GPS Tip: Increasing accuracy for a single location
- Prev by Date: Re: Will Garmin 2720 Ever Be As Good As 2610?
- Next by Date: Re: Galileo paranoia?
- Previous by thread: Re: GPS Tip: Increasing accuracy for a single location
- Next by thread: Re: GPS Tip: Increasing accuracy for a single location
- Index(es):
Relevant Pages
|
