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description: Documentation of Precise Flight

Precise Flight

Preciseflight is a post-flight tool that enables operators to run PPK on the imagery collected with Powered-by-Auterion Vehicles.

The main page is shown below. From this page, users can select the data folders required by the tool.

Main page

Mission Data

This folder has to contain the images taken during the survey (that are stored on the USB Storage of your vehicle). In particular, the folder has to contain the following description files:

• sequence.json file containing the sequence of the images.
• *.obs file containing the raw gps observations.
• imagelog.json file containing the log of the images.

When you select a folder that does not contain one of those files the software will show a popup with the error message like the following:

Missing files

Base Station Data

This folder has to contain the RINEX files of your base station matching the following file format name: .digit digit letter.

Saves images in

This folder is going to be the output folder. In case the folder is not empty, a popup will be shown.

Not empty folder selected

Select Base Station Position

Clicking on the ">" in the bottom right corner you'll gain access to the select base station position input window

rom this section you can select one of the following methods to insert the base station position:

• Manual
• LLH
• Rinex

For best Accuracy results, inputting manually the base station position is recommented.

Manual

As the name stands you can insert the latitude, longitude and altitude of the base station position. Then click on Set base position to accept the position.

Manual Input base station position

LLH

In this mode, you can select a LLH file logged by the base station (E.g Emlid RS2) in order to set the base station position. Precise Flight will average the position and show the result on the map.

LLH Base station position

By selecting a valid .LLH file you'll get a confirmation popup like the following one:

LLH

By clicking on confirm the current base station position will be set to the imported one.

RINEX

Selecting RINEX the base station position will be read from the observation file header.

Rinex Base station position

Based on our testing, this solution does not generate high accuracy results.

Process

Once you have selected all the required files, the button Process will be active and you can proceed with the PPK.

On Process

When the process is completed the processed pictures will be plotted on the map

Trajectory

Events that could not be geotagged geotagged will be flagged with a red dot.