Papers › An Open-Source Gazebo Plugin for GNSS Multipath Signal Emulation in Virtual Urban Canyons
An Open-Source Gazebo Plugin for GNSS Multipath Signal Emulation in Virtual Urban Canyons
Kartik Anand Pant, Zhanpeng Yang, James M Goppert, Inseok Hwang
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One of the major errors affecting GNSS signals in urban canyons is GNSS multipath error. In this work, we develop a Gazebo plugin which utilizes a ray tracing technique to account for multipath effects in a virtual urban canyon environment using virtual satellites. This software plugin balances accuracy and computational complexity to run the simulation in real-time for both software-in-the-loop (SITL) and hardware-in-the-loop (HITL) testing. We also construct a 3D virtual environment of Hong Kong and compare the results from our plugin with the GNSS data in the publicly available Urban-Nav dataset, to validate the efficacy of the proposed Gazebo Plugin. The plugin is openly available to all the researchers in the robotics community. https://github.com/kpant14/multipath_sim
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