What do LiDAR systems use GPS receivers and INS for?

LiDAR systems utilize GPS receivers and Inertial Navigation Systems (INS) primarily for georeferencing point cloud data. Georeferencing is the process of associating data points with their corresponding geographical locations in a real-world coordinate system.

By integrating GPS data, LiDAR systems can accurately determine the precise location of the laser scanner at the moment each laser pulse is emitted. Meanwhile, INS provides critical information about the orientation and movement of the LiDAR sensor during its operation. This combination allows for the creation of detailed and precise three-dimensional models of the scanned area, as each point in the point cloud is accurately tagged with geographic coordinates.

The other options do not align with the fundamental purpose of GPS and INS in LiDAR systems. Enhancing image clarity pertains more to visual imaging technologies rather than spatial reference systems. Adjusting flight paths is an operational concern but not the primary function of GPS and INS in the context of LiDAR data collection. Measuring atmospheric pressure is a different kind of measurement not related to the geospatial capabilities of LiDAR systems.