an overview - sapos baden-wü · pdf filedata format: rtcm 3.1 reference system: official...

- What is SAPOS® ?

- Products Page 2

- Registration Page 3

- Abstract, GNSS raw data evaluation Page 4

- Contact Page 19

An overview -

SAPOS® Baden-Württemberg

What is SAPOS?

SAPOS® will enable highly accurate positioning in location and height.

SAPOS®, a joint project of the Working Committee of the Vermessungsverwaltungen of

the Länder (AdV), is based on a network of reference stations which permanently

process satellite signals of the Global Navigation Satellites Systems (GNSS) and

provide observation and/or correction data via data communication media.

SAPOS® is available all over Germany, uses internationally standardised formats and

offers you a high investment security owing to its official quality and more than 20

years of experience.

SAPOS® offers more than 270 reference stations in germany.

The federal state of Baden-Württemberg utilises 16 reference stations of its own and

19 further stations from neighbouring countries.

Page 1

Products

The following services are offered to your individual requirements in different

accuracy classes and applications in Real Time* or Postprocessing**:

Accuracy- horizontal: 0,3 – 0,8m

Accuracy- vertical: 0,5 – 1,5m

Transmission technique: Mobile Internet

Data format: RTCM 2.3

Reference System: Official ETRS89

SAPOS® - fee: free of charge

Registration: Not necessary

SAPOS® - EPS

Real Time Positioning Service

Accuracy- horizontal: 1 – 2 cm

Accuracy- vertical: 2 – 3 cm

Transmission technique: Mobile Network, Mobile Internet

Data format: RTCM 3.1

Reference System: Official ETRS89 or Gauß-Krüger

SAPOS® - fee: 10 Cent / Minute

Registration: Necessary

SAPOS® - HEPS

High Precision Real Time Positioning Service

Accuracy- horizontal: ≤ 1 cm

Accuracy- vertical: 1 – 2 cm

Transmission technique: Internet, Download from webserver

Data format: RINEX 2.1

Reference System: Official ETRS89

SAPOS® - fee: 20 Cent / Minute

Registration: Necessary

SAPOS® - GPPS

Geodetic Postprocessing Positioning Service

* Real Time:

The coordinate determination occurs directly during the measuring process on site.

** Postprocessing:

Subsequent to the local measurement the coordinate determination is achieved by a later processing in your office

Registration

Before using SAPOS®-HEPS or GPPS, a registration is required:

• For a nationwide use contact the central office SAPOS®

(www.zentrale-stelle-sapos.de)

• For enabling in the federal state of Baden-Württemberg only

1.) Go to http://sapos.lgl-bw.de

2.) At the end of the site use the link „Zur SAPOS-Registrierung“

3.) Fill in the contact form

Figure: Registration form SAPOS® Baden-Württemberg

and / or

Accept terms of use

Send registration

Personal data

• Within a day you receive an e-mail with your login data, datalinks and further

details.

http://sapos.lgl-bw.de/



Abstract, GNSS raw data evaluation (SAPOS®-GPPS )

First step: Login at the web server www.sapos-bw.de

http://www.sapos-bw.de/



There are two possibilities to use the SAPOS®-GPPS Data:

A.) RINEX-download

Download RINEX-data from a physical or an virtual reference station

(VRS) and evaluate the baselines on your own.

B.) Berechnungsdienst

Online processing service. After uploading your GNSS raw data in

RINEX format, the analysis will be performed automatically.

A: RINEX-download

Here you can choose again: Download SAPOS® RINEX-data from

• a physical SAPOS® -reference station

• a virtual reference station (VRS) derived from SAPOS® -reference station

network

A: RINEX-download, physical reference station

Depend on which reference station data you‘d like to order, elect one or several

SAPOS® -reference station from the map.

Your choice

Next


Date Start time (24h, in UTC-GPS-Time) Duration

Interval

Next Back


Change, add, delete

start processing


Delete

Buy now Price

A: RINEX-download, virtual reference station (VRS)

Date Start time (24h, in UTC-GPS-Time) Duration

Interval

Next

Choose the referencesystem and fill in approximated coordinates of the VRS.

Latitude, Longitude, Height

Cartesian

Examples


Change, add, delete

The processing can take several minutes.

A 30 minute measurement needs about 5 minutes processing time.

start processing


Delete

Buy now Price

B: Berechnungsdienst

Next

Next Browse and select the RINEX-file (*.yyo)

of your local GNSS measurement.

Browse


After successfully data upload the analysis user interface appears.

Below you see a double measurement example on the same point. Identical point

numbers leads to automatically averaged results.

Antenna type

Antenna height

point number (session 1)

Antenna type

Antenna height

point number (session 2)

Next


Next

Change, delete

A 30 minute

measurement

takes about

5 minutes

processing time.

start processing


Download the file „orderxxxx.zip“.

After decompressing, results are in the

file „Auswertung.txt“

Price

Delete

Buy now

Quality

Note:

For good results (h: <3cm, v: < 5cm) choose measurements with:

- quality: HOCH (=high)

- measurement duration: > 10 Minutes

- maximum PDOP: < 2.0

„Auswertung.txt“

PUNKTNUMMER 691608458

Protokolldatei: Protokoll2276.txt

Ausgewertet am: 02.05.2013 11:23:58

Beobachtungsbeginn: 22.04.2013 08:50:00 (GPS-Zeit)

Dauer: 0h 14m 50s

ETRS 89 - KOORDINATE

XYZ [m]: 4146887.207 611147.037 4791431.578

UTM ellip. Höhe [m]: 32454925.158 5428781.331 163.003

KOORDINATENQUALITÄT

Lösungsqualität: HOCH

Lösungstyp: FixedL1

Sigma0 [m]: 0.0002

Mehrdeutigkeiten gelöst [%]: 100.0

Satelliten min/Mittel/max: 17/17.7/19

PDOP min/Mittel/max: 0.7/0.8/0.8

WEITERE ANGABEN

Antennentyp: TRM59800.00 SCIS

Antennenhöhe [m]: 2.000

---------------------------------------------------------------------------

PUNKTNUMMER 691608458

Protokolldatei: Protokoll2277.txt

Ausgewertet am: 02.05.2013 11:24:24

Beobachtungsbeginn: 22.04.2013 13:20:00 (GPS-Zeit)

Dauer: 0h 19m 50s

ETRS 89 - KOORDINATE

XYZ [m]: 4146887.207 611147.036 4791431.578

UTM ellip. Höhe [m]: 32454925.158 5428781.331 163.003

KOORDINATENQUALITÄT

Lösungsqualität: HOCH

Lösungstyp: FixedL1

Sigma0 [m]: 0.0002

Mehrdeutigkeiten gelöst [%]: 100.0

Satelliten min/Mittel/max: 17/17.2/18

PDOP min/Mittel/max: 0.7/0.7/0.7

WEITERE ANGABEN

Antennentyp: TRM59800.00 SCIS

Antennenhöhe [m]: 2.000

---------------------------------------------------------------------------

===============================

Statistik der GNSS-Auswertung

===============================

Punktnummer 691608458: 2 Sessions

Beobachtungsbeginn | Dauer | Ant.höhe | Qualität | dE [m] | dN [m] | dh [m]

------------------------------------------------------------------------------------

22.04.2013 08:50:00 | 0h 14m 50s | 2.000 | HOCH | 0.0002 | 0.0000 | 0.0000

22.04.2013 13:20:00 | 0h 19m 50s | 2.000 | HOCH | 0.0003 | 0.0000 | 0.0000

E N h

Mittelwert [m]: 32454925.1580 5428781.3310 163.0030

Standardabweichung Einzelmessung [m]: 0.0005 0.0000 0.0000

Standardabweichung Mittelwert [m]: 0.0002 0.0000 0.0000

Coordinate

(3D,UTM32)

Solution quality HIGH

Solution type

Fixed ambiguities

Statistic evaluation

Averaged coordinate

in ETRS89 / UTM

point number

(session 1)

point number

(session 2)

Antenna type

Antenna height

Contact

Questions, problems?

Call our SAPOS®-Hotline: +49 170 / 85 72 321

or write us [email protected]

an overview - sapos baden-wü · pdf filedata format: rtcm 3.1 reference system: official...

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