Abstract—In GPS receivers, carrier phase measurement can be used to improve the receiver’s position accuracy. In order to maintain the accuracy, cycle-slip must be detected and repaired instantaneously and accurately. This paper first analyzes the implementation cycle-slip detection and repair method of GPS data based on Doppler measurement. Then introduce a simplified oscillator model. Based on the oscillator model, a modified method is proposed, which avoids the influence of the local oscillator bias. Data tests show that the root mean square error of the time-difference measurement residual based on the proposed method is small enough for detecting and repairing the cycle-slip instantaneously
Index Terms—Cycle-slip, Doppler measurement, GPS data, instantaneous.
Z. Ren, L. Li, J. Zhong and M. Zhao are with the Department of Information Science and Electronic Engineering of Zhejiang University, China(e-mail: firstname.lastname@example.org; email@example.com; firstname.lastname@example.org, email@example.com).
Cite: Zhoufeng Ren, Liyan Li, Jie Zhong, and Minjian Zhao, "Instantaneous Cycle-Slip Detection and Repair of GPS Data Based on Doppler Measurement," International Journal of Information and Electronics Engineering vol. 2, no. 2, pp. 96-101, 2012.