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excersize:m_r:gnss

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Absolute Positioning

Excersize Description

Materials

  1. 3 GNSS receivers, set to work with the Hohenheim Reference station. With all cables and antennas.
    1. 1 with GNSS - link to a configuration or manual on how to configure the receivers
    2. 1 with DGNSS
    3. 1 with RTK-GNSS
  2. 1 Switch - with 7,5 Voltage regulator.
  3. 1 power source - Armadillo Scout or car battery - From the Start box in the garage.
  4. 1 custom powercable.
  5. Armadillo Scout or the wooden cart from Frau Hadam in the woodworkshop.
  6. Wooden Antennamount, with screws.

Setup

Picture is on the way

Datalogger

Claes Jaeger-Hansen has written a custom datalogger for the excersize. For Manual, description, executable and sourcecode follow the link

Java program for datalogging

Help and Hints

Here you can find help and hint to solve the assignment. Not everything is a wlakthrough, so you will have to think a it for yoourself!

Convert from WGS84 to decimal degree

Spreadsheet example

Format in WGS84 Converted to decimal degrees
latitude longitude latitude longitude
4842,716607 912,293844 48,711943469,2048974
Spreadsheet formulas =(A3-4800)/60+48=(B3-900)/60+9

Programming Example

This function is in awk, but can be converted to other languages <sxh bash> function nmea2dd(nmeacoord){

dn=int(nmeacoord/100);
return dn+((nmeacoord-(dn*100.0))/60)

} </sxh>

Convert from WGS84 to UTM

Start with the conversion to decimal degree!!

Convert with this software tool

Here you can find a description of the the conversion, along with a spreadsheet where all the formulas are implemented

Here is another tool where you can convert multiple coordinates online.

excersize/m_r/gnss.1337782998.txt.gz · Last modified: 2021/08/14 04:19 (external edit)