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Geo++ GmbH30827 Garbsen, Germany
www.geopp.de
Smartphone (PPP-)RTK – first results and challenges
Jannes B. Wübbena
© 2019 Geo++® GmbH
Our Activities on Android Raw Data
© 2019 Geo++® GmbH
Geo++ Rinex Logger High Accuracy Applications
Rinex Logger
© 2019 Geo++® GmbH
July 17: Released on Google Play
Sep 18: Dual frequency support
Aug 18: Rinex 3 support
Mar 19: „Foreground Service“ Capability
Installs by manufacturer:31 % - Samsung21 % - Huawei20 % - Xiaomi
Rinex Logger
Insights from the past two years:
• API implementation varies strongly between device, chipset and firmware
• Active community, giving lots of feedback
• Mostly researchers, especially students
© 2019 Geo++® GmbH
Thanks for the Feedback! Keep it coming…
Positioning tests at Geo++
© 2019 Geo++® GmbH
Positioning tests at Geo++ - Zero Baseline
© 2019 Geo++® GmbH
splitter
referencereceiver
rf enclosure
smartphone
RTK engine
Positioning tests at Geo++ - Zero Baseline
© 2019 Geo++® GmbH
Positioning tests at Geo++ - Short Baseline
© 2019 Geo++® GmbH
referencereceiver
rf enclosure
smartphone RTK engine
Positioning tests at Geo++ - Short Baseline
© 2019 Geo++® GmbH
Positioning tests at Geo++ - Virtual Reference Station
© 2019 Geo++® GmbH
Virtual reference
rf enclosure
smartphone RTK engine
Access to the reference station network was provided by the Landesamt für Geoinformation und Landesvermessung Niedersachsen (LGLN).
Positioning tests at Geo++ - Virtual Reference Station
© 2019 Geo++® GmbH
Positioning tests at Geo++ - Smartphone Antenna
© 2019 Geo++® GmbH
referencereceiver
RTK engine
Positioning tests at Geo++ - Smartphone Antenna
© 2019 Geo++® GmbH
Positioning tests at Geo++ - Mitigating Multipath
© 2019 Geo++® GmbH
referencereceiver
RTK engine
Positioning tests at Geo++ - Mitigating Multipath
© 2019 Geo++® GmbH
cm - level positioning on smartphones…
… is possible
… but challenging
… would work much better with good antennas
dm – level positioning is much easier …
© 2019 Geo++® GmbH
© 2019 Geo++® GmbH
Thanks for your Attention
© 2019 Geo++® GmbH
Francesco Darugna
Akira Ito
Contact:[email protected]
The Team:
