1. GPSTOOLS TUTORIAL
2nd Chapter:
Analytical and Download Observation Point Coordinates by 2
Static PPP (Precise Point Positioning)
1. ZULFIKAR ADLAN NADZIR 3511100027
2. AKHMAD ARISANDY 3512100026
3. ELIYA NUR FADILA 3512100040
4. YUGIE NANDA PRANATA 3512100067
5. UMROH DIAN S. 3512100071
6. MUSDIYANA THALIF 3512100104
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

2. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
In this Example, we will analyze the position using PPP Method and
below is the main analysis condition.
a. Observation points object at IGS (International GNNS Service)
BAKO (Cibinong)
b. Date 2014/1/1 0:00-10/1 23:55 GPST (GPS Time).
c. Time interval 24 H; 300 sec.
d. Satellite orbit/ clock/ ERP (Earth Rotation Parameters): IGS Final.
e. Tropospheric delay: ZTD / Gradient estimation + NMF.
f. Lowest elevation : 10 degrees.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

3. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
So following this section:
1. Press “Estimate” button on the Main Menu. The “Observation data Edit/ Parameter
estimator ” window will appears (referred to as parameter estimation screen below)
constant/ execution screen (Figure 2-1)
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

4. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
After that, do the following:
2. Set PPP parameter for sample analysis: Click file and Run the "Load Setting .." menu. In
the “file” selection dialog choose prm_ppp_300s_static.mat file.
3. Press the "Open" button to select the file. Static PPP for sample analysis parameters
4. It will be loaded automatically.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

5. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
Then:
5. Enter the observation point to be used for the analysis on receiver list on parameter
estimation screen “Receivers”. This time, we are using “BAKO”
6. Then you can make setting for output data directory on clean observation data of
parameter estimation screen.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

6. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
7. Set the Raw Observation Data, Navigation Messages, Satellite Ephemeris,
Satellite/Receiver Clock and Earth Rotation Parameters using “Data Directories/Files”
Button.
8. After that, Try to Edit the Data first using
following parameters:
Exec Obs Data Editor : ON
Exec Parameter Estimator: ON
Raw Observation Data : RINEX
Navigation Messages : Combined
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

7. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
9. For the RINEX Observation Data and Navigation Messages Name Format, it should
comply the table below:
10. Run the Process by Pressing “Execute” Button. The progress will displayed, and if the
“Completed” Status is displayed, then your process was finished properly.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

8. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
9. Press “Log” button after the Analysis is Complete, to see the statistics and analysis of
Cycle Slip, Cycle Statistics, or Outliers of the observations.
10. Press “Plot” then pick “Observation Data” to plotting the edited Observations Data
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

9. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
11. We can do Individual Plotting of Every Observation Data by Double Clicking the Plot,
to checking Cycle Slip, Start Time and End Time of Observations
12. Check the Observation Data Editing if you want to change another parameters or you
want to check what parameters to be changed.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

10. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
11. Observation Data Editing is completed successfully, then you can do parameter
estimation using “Est/Fixed Parameters” button
In the Window, you can choose the
parameters like this:
Satellite: ALL Receiver: ALL
Orbit: IGS Final Position: <estimated>
Clock: IGS Final Clock: <estimated>
SRP Param: (Blank) Tropos ZTD: <estimated>
ERP: IGS Final Phase Bias: (Blank)
Geocent (Blank)
Then, press OK
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

11. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
13. Execute the Process using Parameter below:
Exec Obs Data Editor: OFF
Exec Parameter Estimator: 2pass (FB)
Estimation Strategy : ZD/PPP
Receiver Clock Model : White Noise
Receiver Position Model : Static
14. After the Process is Completed, press “Log” to show the Log Anaylsis about the
process and make sure that no error are displayed.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

12. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

13. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
15. We can display the Observation Data in Receiver Position Display using Menu Plot,
then choose Receiver Positions, and choose the data you want to show and process.
16. Check the Observation Data Editing if you want to change another parameters or you
want to check what parameters to be changed.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

14. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
17. If you want to Plot the Observation Data in Map View, use Menu “Plot” then choose
“Horizontal Error Map” or “Vertical Error Map” if you want to show the Vertical Error
18. Then, you can save the coordinates output using “Data” menu, then choose “Output”.
This options enables you to save the coordinates into CSV Files.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

15. Analysis of the observation point coordinates by static PPP (Precise
Point Positioning) Method
19. We can plot the ZTD (Tropospheric Parameters) using Plot Menu, then choose the
Troposphere Parameters.
20. Then, we can show the Clock Bias in every Satellites or every Receiver.
GEOMATICS ENGINEERING DEPARTMENT – CIVIL AND PLANNING
FACULTY of INSTITUTE TECHNOLOGY SEPULUH NOPEMBER SURABAYA
2014

16. Questions?