Preparation of initial data

After completion of the field works, prior to RAW data processing, it is necessary to organize the achieved dataset: 

 

 Download the data to your computer. Photos from the camera and  GNSS files from the PPK module of the aircraft; Data from the TOPODRONE LiDAR; *.pcap – LiDAR sensor file *.imr –file from the LiDAR IMU (Inertial Measurement Unit) *.ubx – raw measurement file from the PPK Upgrade kit or built-in LiDAR PPK (GNSS) receiver log.txt – LiDAR system log data, doesn't take part in processing stage, but necessary for diagnostics *.raw – LiDAR system diagnostics data, not included in processing

 

 

 

 

 

 

 Sample of the TOPODRONE LiDAR single dataset. 

 

 

 

 *.ubx/.obs/.YYo/etc. - Static observation files from the base station; *.txt/.csv/etc. - Catalog of control point coordinates. 

 Distribute the data to a separate directories with an appropriate names. If you have had multiple flights and/or passes, each dataset shall be copied to a separate folder, accrodingly. 

 Images dataset shall be separated according to the flights, as well as the *.ubx files from these flights, which are on a microSD flash card installed in TOPODRONE PPK Upgrade Kit on the aircraft. 

 Please note that the photos should be separated exactly by flight. In DJI aircraft, photos are named with a numerical designation from 1 to 999 (For example, DJI_0001.jpg and DJI_0999.jpg), if you have more than 1000 files, the system will start writing the images to a new folder named DJI_0001.jpg 

 

 Be sure to convert the static observation file from the base station to RINEX format and move it to a separate folder, for example "Base". 

 

 

 

 

 

 

 

 

 

 Example of data storage organization.