wgs84conv is a accurate & fast Earth-Fixed Earth-Centered (ECEF) to Geodetic (lla) convert module based on:

Karl Osen. Accurate Conversion of Earth-Fixed Earth-Centered Coordinates to Geodetic Coordinates.[Research Report] Norwegian University of Science and Technology. 2017. hal-01704943v2

And with pybind11 & carma, this module also support Python binding.

• armadillo
• pybind11

• mkdir build && cd build
• cmake -G"Ninja" ..

• Input: ECEF position in meter
• Output: WGS84 LLA in radius, meter

• Input: WGS84 LLA in radius
• Output: ECEF position in meter

Compare to pyproj convertion

$ time python gps_track_pybind11.py test.tlm
    0.42s user 0.04s system 99% cpu 0.459 total

$ time python gps_track.py test.tlm
    34.54s user 3.20s system 98% cpu 38.256 total