Research on Tilt Survey Algorithm Based on Accelerometer and GNSS Receiver Data Fusion

Abstract

At present, in the process of providing accurate location service for high-precision GNSS receiver of tilt survey, external environment, hardware structure and other factors will restrict the accuracy, universality and stability of service. To solve these problems, a method is proposed an improved attitude tilt survey algorithm only based on data fusion solution of an accelerometer and a GNSS receiver. On the premise of not changing hardware of the GNSS receiver, the algorithm enhances stability and universality of the attitude tilt survey. In the end, the measurement environment was chosen for comparative verification: Results indicate that the algorithm is slightly higher than attitude tilt survey proposal based on magnetic compass system in position correction accuracy, eliminates complicated calibration and preparation of sensors, reduces cost of operations and materials, As verified, the algorithm has outstanding advantages and wide application outlook in the field of precision engineering position services.