Re: measuring 10 km with 1m accuracy



On Feb 15, 4:13 am, Surinder Singh <gogreenmi...@xxxxxxxxx> wrote:
Hi,

What would be best technology (GPS,IR,Radio/freq,ultrasonic etc) for
doing distance measurements upto 10km with accuracy of 1 meter?

..> GPS could be good for greater distance but accuracy seems coarse.

- Surinder

Surveying grade GPS code based instruments can provide sufficient
accuracy at the cost of more time (and money) than the shirt pocket
GPS receivers take. If you are only interested in distance and not
position you can use real time kinematic (RTK) GPS instruments that
process relative positions based on GPS carrier phases instead of
codes. See:

http://en.wikipedia.org/wiki/Real_Time_Kinematic

Dale B. Dalrymple
.



Relevant Pages

  • Re: Ipad compatible bluetooth GPS which has an external antenna socket and external pwr input?
    ... No GPS can give you the heading. ... Heading comes from a slaved compass system, ... need no backup instruments (it has AHRS, air data computer, SBAS/VOR/ ...
    (sci.geo.satellite-nav)
  • Re: Analysis of Air France 447 crash
    ... GPS and airspeed can be over 100 mph different, ... Other experienced pilots say that they take note of the aircraft ... instruments are compromised by icing? ... yet three trained pilots didn't sort it out in the ...
    (rec.aviation.piloting)
  • Re: I hear NMEA...
    ... The cable comes from the GPS to a terminal strip, ... the various instruments. ... I used a Noland Multiplexer once, ... GPS or did you use a buffer/splitter? ...
    (rec.boats.electronics)
  • Re: GPS on aircraft
    ... He said my GPS was probable ... more accurate than the 10 year old instruments on the aircraft. ... If there is no GPS on the aircraft, that may be true, for long distances. ... stuff drifts, so at the end of a 10-hour flight, even a consumer GPS may be ...
    (rec.travel.air)
  • measuring 10 km with 1m accuracy
    ... What would be best technology for ... doing distance measurements upto 10km with accuracy of 1 meter? ... GPS could be good for greater distance but accuracy seems coarse. ...
    (comp.arch.embedded)