Inside Unmanned Systems

JUN-JUL 2017

Inside Unmanned Systems provides actionable business intelligence to decision-makers and influencers operating within the global UAS community. Features include analysis of key technologies, policy/regulatory developments and new product design.

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30 unmanned systems inside   April/May 2017   June/July 2017 WEBINAR RECAP » MAPPING AND SURVEYING sponsored by APPLANIX » DIRECT GEOREFERENCING AND LiDAR How combining Direct Georeferencing with compact, drone-sized light detection and ranging (LiDAR) technology is changing UAS mapping and surveying. by Stan Goff T he integration of GNSS and inertial sensors in an aided-inertial navigation system (A-INS) for direct georeferencing (DG) has become a powerful stan- dard for high-accuracy airborne and mobile mapping. Combining DG with light detection and ranging (LiDAR) technology made small and light enough to fit onto an unmanned aircraft system (UAS) is a breakthrough that brings with it many benefits. LiDAR sensors provide efficiencies in spatial data collec- tion as they perform DG to assign geographic coordinates without the need for surveyed ground control points, or ex- tensive processing time. In addition to the accuracy and the precision characteristics of the data that are collected, high accuracy Digital Surface Models DSMs can be generated in the matter of minutes instead of hours or days. Inside Unmanned Systems, Inside GNSS and Applanix recently presented a webinar that outlines these benefits and takes a look at both recent developments and the fu- ture possibilities for LiDAR and DG for unmanned se- rial mapping and survey applications. The webinar, "UAS Mapping & Survey—Direct Georeferencing and LiDAR" featured panelists James Poss, Maj Gen (Ret); Lewis Graham, president and chief technical officer of GeoCue Group; James Van Rens, CEO of Riegl USA, and Pierre Chaponniere, an application engineer at YellowScan. Joe Hutton, director inertial technology and airborne prod- ucts for Applanix, also presented during the webinar. "While somewhat controversial, we believe that LiDAR integrated with cameras and direct georeferencing repre- sents the pinnacle of accuracy and productivity, and will soon become the standard payload for mapping and sur- veying with UAVs," Hutton said. Is LiDAR Right for Drones? Poss admitted up front that he wasn't sure if today's tech- nology allows for the ideal use of LiDAR with small UAS.

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