Satellite anomaly detection technique for network RTK integrity monitoring

Abstract

Network RTK (Real Time Kinematic) is a precise positioning technique using CPC (Carrier Phase Correction) from reference stations within the network, and is constantly being researched for improved accuracy. However, researches for network RTK integrity monitoring have not been sufficiently studied, because network RTK has been mainly used on surveying for static or kinematic positioning. Recently, network RTK has been considered for dynamic navigation users requiring precise positioning performance, as well as surveying. Thus, researches for network RTK integrity monitoring are necessary. This paper presents a satellite anomaly detection technique for network RTK integrity monitoring. Anomaly detection algorithms are proposed to detect an abnormal signal caused by a faulty satellite system on network RTK concept. The proposed anomaly detection algorithm is verified on an anomaly-free ideal case, and a represented real anomalous case. ？ Institute of Navigation PACIFIC PNT 2015.All right reserved.