An integrity monitoring method of satellite clock bias using Shewhart Control Chart

The accuracy of navigation and positioning directly depends on satellite clock bias. Because of different abnormal models, predicting and integrity monitoring of satellite clock bias is a great challenge. This paper described the satellite clock bias model, analyzed the reasons of abnormal satellite clock bias, and established three satellite clock models. Then, this paper validated the accuracy of two prediction model. At last, this paper proposed an integrity monitoring method using Shewhart Control Chart. Based on IGS products, through simulation analysis, we found that this method can successfully detect abnormal clock bias, monitor integrity of clock bias and replace outliers.