Register

USI Drones Course Practice Test

Access More Questions
One of the first UAS used Inertial Navigation System (INS) for guidance. What updated technology improved the accuracy and capability of UAS?
Correct Answer:
Global Positioning System (GPS)
Explanation:
GPS added an external, global position reference to INS navigation. INS relies on gyros and accelerometers to estimate motion, but small errors accumulate over time, causing drift. GPS provides accurate position and velocity updates from satellites, which, when fused with the INS data, continually corrects this drift. The result is much higher real-time positioning accuracy and more capable autonomous flight, precise waypoint navigation, and safer operations. The other technologies mentioned serve different roles—IMU is part of the INS, while radar and LiDAR are sensing tools for detection or mapping rather than primary navigation corrections.

Access more questions from this quiz

Continue to USI Drones Course Practice Test for more practice questions and the full quiz experience.

Access More Questions