Importing drone flight data from an Autel EVO ASS file (There are other ways to extract the flight data to higher-precision but they are not as convenient as the SRT file method). Ideally, DJI would modify their SRT file data to include native drone speed and higher-precision latitude and longitude. While this helps, it’s not a perfect solution. DroneViewer applies a smoothing function to dampen the speed variations. The lack of precision means the drone speed and direction can be inaccurate and appear to vary wildly. DroneViewer uses the time-stamped lat/lon values to estimate the speed. While it’s great that DJI conveniently logs the drone’s flight data into an SRT file, the speed of the drone is not recorded to the file and the latitude and longitude are not stored in high precision.
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