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sci.geo.satellite-nav (Global Satellite Navigation) (sci.geo.satellite-nav) Discussion of global navigation satellite systems (GNSS). Topics include the technical aspects of GNSS operation, user experiences in the use of GNSS, information regarding GNSS products and discussion of GNSS policy (such as GPS selective availability).

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RTK delay in transmission



 
 
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  #1  
Old January 31st 10, 10:38 AM posted to sci.geo.satellite-nav
Dave
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Default RTK delay in transmission

Hello, I've been thinking about RTK base stations and wondering how delays
in sending effect overall error and also how fast (baud) is RTK signals ?

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  #2  
Old February 1st 10, 10:01 AM posted to sci.geo.satellite-nav
hannan.sadar@gmail.com
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Default RTK delay in transmission

On Jan 31, 11:38*am, "Dave" wrote:
Hello, I've been thinking about RTK base stations and wondering how delays
in sending effect overall error and also how fast (baud) is RTK signals ?


It is hard to give a number such as 0.5 m....
each company prudoce its own protocol, which means more bytes or less
bytes to transfer depends on your receiver. Normally each packet come
with a time stamp which helps to sync each packet from the base with
the rover packet, which was sample at the same time. I cant say what
happen if you get your base packet at 2 seconds delay and you sample
at 1Hz. I would guess you will increase your error...

The main problem i see here is the receiver clock error and satellite
clock error, which are the significant error parts.

i would guess that if you dont see 1000m errors, a delay of 1-2sec
would increase at about 10cm your inaccurecy (depending on the
distance between rover and base)

regards
 




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