Cycle slip detection and repair are prerequisites to the use of the global navigation satellite
system (GNSS) carrier phases for precise positioning. Modern GNSS techniques introduce
triple-or multi-frequency signals that are beneficial for cycle slip detection and repair. We
present a new real-time cycle slip detection and repair method based on the independent
linear combinations of undifferenced triple-frequency GNSS observations. The proposed
method forms three types of linear combinations based on the original observations. These …

To improve the effectiveness and reliability of cycle slips detection and repair, a real-time
algorithm to detect, determine, and validate the cycle slips for triple-frequency BDS is
proposed in this study, in which the geometry-free (GF) combination noise residual method
and the GF code and phase combination method are utilized. At first, the optimal BDS triple-
frequency GF phase combinations are selected. Then the GF code and phase combination
method are used to detect all the cycle slips. After the cycle slips are detected, an effective …