GNSS Real Time Kinematics

GNSS Real-Time Kinematics (RTK) aims to achieve centimeter-level positioning accuracy by using carrier phase measurements from GNSS signals. Current research focuses on improving RTK robustness in challenging environments like urban canyons, where signal blockage and multipath effects are prevalent, often employing tightly-coupled integration with inertial navigation systems (INS) or LiDAR data and advanced outlier rejection techniques such as risk-averse optimization. These advancements are crucial for reliable autonomous navigation in urban settings and various applications requiring high-precision positioning, improving the accuracy and availability of GNSS-based positioning solutions.