Investigation on UAV positioning inertial navigation system

Abstract

The surveying technique used by surveyor and geotechnical teams are usually time consuming and expensive in terms of labour and equipment. Thus, Unmanned Aerial Vehicle (UAV) serves as a powerful platform for aerial data acquisition in many applications intensively because of its flexibility and low cost data collection to get high resolution data in comparison to traditional aerial mapping. This is made true due to implementation of onboard Global Positioning System (GPS) and inertial sensors such as accelerometer and gyroscopes, and a magnetometer to give it a real time capability during flight mission. Additionally, high accuracy of ground control points (GCPs) is the key to secure high quality result. To address the requirement of achieving high accuracy GCP by using UAV positioning inertial navigation system, this study is proposing an investigation on the system to overcome the limitation of traditional survey. Therefore, this study evaluates the accuracy of UAV positioning at the study area in order to obtain high accuracy result by observing the bahaviour of onboard GPS on a static object at a given time for a duration of four days. Based on the objective of the study, the result of the UAV positioning could be used as an improvement to the establishment of GCPs. In conclusion, the error of onboard GPS UAV could be applied in the positioning correction to achive high positioning result at the study area.