Principles and error analysis of GNSS-laser rangefinder integrated system for orientation and positioning

GNSS navigation satellites for orientation and positioning of the target with high precision, low cost, and small impact by the geographical environment, have been increasingly applied to the autonomous navigation of aircraft and spacecraft, weapons targeting, baseline determination of position emission, deformation monitoring of dams and bridges, and gradually replaces the traditional way of orientation measure. This paper first introduced the principles of GNSS-laser rangefinder integrated system for orientation and positioning, and then analysed the various sources of error, and the correlation between the system parameters, verified the effectiveness of the system and the rationality of error analysis by collecting experimental data. Finally, several methods were proposed to improve the system against the problems in the experiment.