High Accuracy Low Cost RTK/SINS for Land-Vehicles

摘要

Many situation demand a high precision, low cost and robust navigation for Land-Vehicles. Real Time Kinematic (RTK) satellite navigation is a technique that can provide up to centimeter level accuracy. But in the condition of poor visibility of satellites, the function of RTK is limited. To achieve a reliable high-precision navigation solution, this paper presents a RTK/SINS integration system based on the complementary features of RTK and SINS. The RTK is designed based on an open source program package RTKLIB. We use an innovation-based adaptive Kalman Filter with forget factor that filtering parameters can be adjusted by the change of GPS' measurement noise in our project. Finally, the reliable and high accuracy of the low cost system is verified through several experiments.