show a non Gaussian
distribution of errors. The results show that all four sensor systems produce DEMs with similar accuracy
despite their different setups and generations. The ADS40 and ADS80 (both with a ground sampling distance
of 0.50 m) generate the most accurate DEMs in complex high mountain areas with a RMSE of 0.8 m
and NMAD of 0.6 m They also show the highest accuracy relating to flying height (0.14‰). The pushbroom
scanning system HRSC-A produces a RMSE of 1.03 m and a NMAD of 0.83 m (0.21‰ accuracy of
the flying height and 10 times the ground sampling distance)