SRP aero Lynx VTOL, Руководство пользователя

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RTK vs. PPK
RTK positioning requires differential corrections from a base station with a pre-surveyed position before the flight. In most
applications, these differential corrections are passed to the rover (the aircraft) receiver in real time necessitating a reliable
communication link between Base and rover. For drone applications, this can be problematic. The equipment required for an additional
communication link between the rover and base station can significantly add to the payload and power consumption of the aircraft.
Furthermore, if your link is interrupted during flight, that portion of the flight will loose accurate correction data.
When everything is working well, the accuracy of RTK and PPK will be similar. However, if the rover GPS receiver experiences cycle
slips, multi-path or data gaps, PPK becomse the more accurate option. With PPK there is also the benefit of being able to look at the
entirety of the recorded data and run through it forward in time from the beginning to the end of the flight as well as backwards in time
from the end of the flight. The ability to perform this forward and backward smoothing of the data is not possible with RTK, which is
only calculated in real-time.
Required for Precision
For PPK image processing using GeoTagZ you will need:
Lynx VTOL with PPK option
Standard mapping payload (24M P)
SBF data from the aircraft receiver containing GNSS measurements and camera shutter events
Base station data in SBF or RINEX format. This can be downloaded from either a nearby reference network or from your own
receiver, such as an Altus NR3 configured as a base station
GeoTagZ can then combine the GNSS measurement data from the aircraft and base receivers to reprocess the positioning. The images
will then be automatically tagged with the new positions and can be easily imported to photogrammetry software.
GeoTagz Features
GPS +GLO reprocessing for cm-level RTK precision
GUI and command line versions offering identical functionality
SBF input for the aircraft rover file
SBF or RINEX input for the base station reference file
PPK Tagging
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