PROCESS PPK


1. Process in TGO (in Windows)

rover folder (= Heron)

base folder (= base station)

  1. Process trimble data

-Right click on .t01 file

-Convert to .dat format

This works when you installed the software for the base station - GPS configurator, you can either get it from the CD provided by the GPS or download it from internet

converttodat

  1. Process CNAV data

    • Copy rinex.exe into the cnav folder

    • Rename the file to a name with only small caps, no numbers, signs or capital letters

    • Go to start/run, open:cmd

    • In commandline go to the cnav folder

    • Type: rinex –i: filename (without .dat)

  1. open Trimble Geomatics Office

-new project (example: 29April2008)

-use metric as template

-ok

-auke/TGO/processed.

        -project properties, ok

        -import .dat file (base station data)

        -now you can give it the northing and easting of the bench mark (when you don't have those you can obtain them from OPUS,  http://www.ngs.noaa.gov/OPUS/)      

        - Open

        -Ok

        -Ok




When you have more .dat files select all the files in the folder of that day, make sure you change them in the same name after pressing ok.

        -import rinex file

        Auke/tgo/raw/date/cnav

        Open

        Ok

        Ok


        -open time line
        Click at the + sign CNAV data
        Right click at blue bar which is totally down
        Properties
        Change segment type into continious segment
        ok

opentimeline

Figure, button to open the time line

clickplussign

Figure, click at the + sign of the CNAV data

bluebar

Figure, right click at the blue bar which is totally bar, it wil turn into a green colour.

    -process baselines

Process

Process GPS baselines

Save

    -export

    Pt, N, E, E, Code

    Custom

Make a new format, click on edit format

Ocean Mapping Group format

Made by Auke, Arctic Strathcona Sound August 2008

Hour, minute, second, day, month year, latitude, longitude, height.

Format body:

[Point Obs.Time:<H mm ss>:utc] [Point Obs.Time:<dd MM yyyy>:utc>] [Latitude:13.9:+d.dd] [Longitude:13.9:+d.dd] [Elevation] [$System.Replace<°><>]

   - OMGdataformat

    - either select whole data base, or make sure you select all the data in the geographical window (left click drag)

sadf    

-go to options, click sort data, and select sort points by start time   

as

    -Ok

    Auke/processed/29april2008

    29april 2008

exportownformat

Figure, export your own format







2. Process in OMG (in Linux)

1. AuketoNav -comp march09.nav march09.auke
2. Apply_PPK JD*** 0016_20090326_144310 

Now it will dump some plots.

overviewmapppk

ppkellipsoidheightatantenna
ppkellipsoidheightatrp
filteredppkellipsoidheightatrp

timeseries_heave

timeseries_RTK

3. Download the grid script and put it in the main folder
4. grid JD085 0016_20090326_144310

Now it will dump some more plots

longperiodheavetakenout
Long period heave taken out

tidetrend+longperiodheavetakenout
tide trend + long period heave taken out

longperiodRTK

long period RTK which is the same as the Filtered PPK Ellipsoid Heights at RP plot