Evaluation of Root Mean Square of Global Navigation Satellite Systems Receiver Carrier Phase Measurement Error

This paper presents an experimental study on evaluating the root mean square error in carrier phase measurements of a global navigation satellite system receiver. The study focuses on the semi-natural method, using a navigation signal simulator. Through a series of experiments, the influence of laboratory temperature variation on carrier phase measurement accuracy is analyzed. The results show that temperature stabilization within ±0.4°C significantly reduces its impact on the root mean square of the first differences of carrier phase error. In addition, the paper investigates the effectiveness of using double differences for error evaluation, concluding that high correlation in receiver noise channels limits this approach. Additional tests with rubidium and hydrogen frequency standards demonstrate that the choice of reference signal affects the accuracy of the measurements. This study highlights the need to revise the approach to carrier phase evaluation when using an external frequency reference. Further research is required to refine these methods.