Misalignment Overview
Introduction to Misalignment Calibration
An accurate and precise IMU misalignment is a critical component for all sensors operated from an airborne platform. Correct misalignment values are the foundation for generating precise and reliable products. Therefore, it is highly recommended to evaluate or readjust the misalignment parameters at regular intervals or for specific projects or products.
Such intervals could include the start of the recording season or immediately before undertaking large projects. On-demand evaluation is especially recommended after each sensor installation to update the Roll, Pitch, and Heading parameters.
Please note that this document focuses exclusively on IMU misalignment calculation and certificate renewal process. It does not cover geometric or radiometric calibration, both of which require specialized laboratory equipment, additional ground control data, and specific flight lines. A full factory calibration, which includes both geometric and radiometric calibration, can generally only be performed by Leica Geosystems in Heerbrugg, Switzerland. Please contact sensors.emea@leica-geosystems.com for more information if a full geometric or radiometric calibration is required.
Requirements for a new Misalignment calculation
LiDAR Misalignment
First or every reinstallation in an aircraft
Exchange of LiDAR unit
Image Misalignment
First or reinstallation in an aircraft
Lens Exchange