Fault Detection in Carrier Phase GPS Positioning Based on Hypotheses Testing of Innovation Processes

Abstract

This paper proposes an anomalous measurement detection algorithm in carrier phase differential GPS(Global Positioning System) positioning in order to attain continuous precise positioning. In this paper, firstly the characteristics of the errors in the measurement data are briefly reviewed such that main error sources affecting the quality of the measurements are identified. Then a new algorithm which comprehensively detects these errors using the innovation process of the Kalman filter is presented.