ABSTRACT

This chapter introduces the concepts of quality assurance and quality control (QA/QC) of Light Detection and Ranging (LiDAR) systems and derived data. It focuses on the introduction of QC procedures to verify the accuracy of the LiDAR footprints. The chapter deals with a brief discussion of LiDAR principles, which will be followed by general remarks regarding QA/QC procedures. The main premise of the proposed QC procedures is that overlapping LiDAR strips represent the same surface if and only if there are no biases in the derived surfaces. A typical LiDAR system consists of three main components: a Global Navigation Satellite System to provide position information, an Inertial Navigation System unit for attitude determination, and a laser unit to provide range information from the laser beam firing point to the ground point. External QC measures can be derived by comparing the LiDAR surface with another version of the surface that has been independently and accurately acquired.