An Improved TurboEdit Cycle-Slip Detection Method for Ground-based High-precision Local Positioning System

Ground-based High-precision Local Positioning System(GH-LPS) is a new type of ground-based navigation system. In order to solve the cycle slip problem of carrier phase measurement during high-precision positioning, an improved method of cycle slip detection and repair based on TurboEdit was proposed in this paper after analyzing various cycle slip detection methods and combining the relevant conditions of GH-LPS. Adaptive sliding windows is used to enhance detection capabilities of MW combination in data quality changing dramatically. The pseudo-range smoother is used to attenuate the effect of pseudo-range measurement noise on GF combination. A large number of simulation and experimental results show that the improved TurboEdit method has a significantly lower probability of missed detections and false alarms than the other widly used cycle slip detection methods. After the cycle slips were repaired, positioning accuracy will be improved by about 70%.