An Inertial Measurement System (INS) allows for the successful positioning and orientating of the system during data capture by the Laser Scanner is essential to obtaining a precise final output.

The INS combines data from GNSS receivers and an Inertial Movement Unit (IMU) in order to form highly accurate estimates of the trajectory – commonly known as SBET (Smoothed Best Estimate of Trajectory).

Typically, this involves taking advantage of recent GNSS base station technology for differential processing.