What does GPS do about atmospheric interference?

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Discussion Overview

The discussion focuses on how GPS systems account for atmospheric interference, particularly the effects of atmospheric refraction on microwave signals used in GPS technology. Participants explore the variability of the atmosphere and its impact on signal timing between ground stations and satellites.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • Some participants note that while microwaves are not significantly refracted in the atmosphere, there is still some degree of refraction that can affect GPS accuracy.
  • One participant suggests that GPS systems must consider atmospheric variability due to its reliance on precise timing of signals.
  • Another participant provides links to external resources and papers discussing atmospheric effects on GPS signals, implying that there is extensive information available on the topic.
  • Several participants express gratitude for the shared resources and indicate that they found the information helpful, leading to further questions.

Areas of Agreement / Disagreement

Participants generally agree on the existence of atmospheric effects on GPS signals, but the specifics of how these effects are accounted for remain less clear. The discussion does not reach a consensus on the mechanisms or solutions involved.

Contextual Notes

Some limitations include the lack of detailed explanations on the methods GPS systems use to mitigate atmospheric interference and the dependence on external resources for comprehensive understanding.

Who May Find This Useful

This discussion may be useful for individuals interested in GPS technology, atmospheric science, and the technical challenges associated with signal transmission in varying environmental conditions.

nomadreid
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Although microwaves are not refracted much in the atmosphere, there is some, and the atmosphere does vary a lot, and the GPS depends on a pretty exact timing of the signals between ground to satellite. So how do GPS systems take the atmospheric refraction into consideration?
 
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nomadreid said:
Although microwaves are not refracted much in the atmosphere, there is some, and the atmosphere does vary a lot, and the GPS depends on a pretty exact timing of the signals between ground to satellite. So how do GPS systems take the atmospheric refraction into consideration?
hi there
there is lots of info on the net ...

http://www.bing.com/search?q=atmosp...earchBox&FORM=IENTTR&conversationid=&pc=EUPP_

eg this paper ...

https://digitalcollections.anu.edu.au/bitstream/1885/8125/3/Tregoning_AtmosphericEffects2009.pdfthat'll keep you out of trouble for a while reading all that

cheers
Dave
 
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Super! Thanks, Dave.
 
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nomadreid said:
Super! Thanks, Dave.

not probs ... see how you go
report back and let us know if it answered Q's or just created more Q's :wink:
 
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davenn said:
report back and let us know if it answered Q's or just created more Q's
Thanks again; it answered my questions. It even brought up some questions I had not thought of, and answered them too, as a bonus:woot:
 
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