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http://dx.doi.org/10.11003/JPNT.2022.11.4.351

Performance Test of Broadcast-RTK System in Korea Region Using Commercial High-Precision GNSS Receiver for Autonomous Vehicle  

Ahn, Sang-Hoon (Department of Electrical and Computer Engineering, Inha University)
Song, Young-Jin (Department of Electrical and Computer Engineering, Inha University)
Won, Jong-Hoon (Department of Electrical and Computer Engineering, Inha University)
Publication Information
Journal of Positioning, Navigation, and Timing / v.11, no.4, 2022 , pp. 351-360 More about this Journal
Abstract
Autonomous vehicles require precise knowledge of their position, velocity and orientation in all weather and traffic conditions in any time. And, these information is effectively used for path planning, perception, and control that are key factors for safety of vehicle driving. For this purpose, a high precision GNSS technology is widely adopted in autonomous vehicles as a core localization and navigation method. However, due to the lack of infrastructure as well as cost issue regarding GNSS correction data communication, only a few high precision GNSS technology will be available for future commercial autonomous vehicles. Recently, a high precision GNSS sensor that is based on a Broadcast-RTK system to dramatically reduce network maintenance cost by utilizing the existing broadcasting network is released. In this paper, we present the performance test result of the broadcast-RTK-based commercial high precision GNSS receiver to test the feasibility of the system for autonomous driving in Korea. Massive measurement campaigns covering of Korea region were performed, and the obtained measurements were analyzed in terms of ambiguity fixing rate, integer ambiguity loss recovery, time to retry ambiguity fixing, average correction information update rate as well as accuracy in comparison to other high precision systems.
Keywords
commercial RTK; Network-RTK; PPP-RTK;
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