Research on Receiver Autonomous Integrity Monitoring Augmented with Clock Bias Model
Hongbing Xu · Journal of Astronautics · 2009
In this paper,we prove theoretically that the first difference series of clock bias error are steady and introduce an improved receiver clock bias forecast model.This model based on coasting window and U-C algorithm,holds the real-time refresh parameters.This model is used to augment RAIM performance and a new algorithm for forecasting error is introduced.The simulation results prove that this method not only is effective in improving the forecasting accuracy,but improves the rates of fault detection and identification.The minimum fault that can be detected is 16 meters.The experimental results of this algorithm used in a certain type of receiver indicate that it is useful and effective.