单频GPS载波相位观测值周跳的探测与修正研究
Abstract:In order to improve the accuracy of GPS navigation and positioning, carrier phase observations have to cycle slips in the rapid and accurate detection and correction. The paper analyzed the GPS satellite signals and reconstruct...
- 作者:李磊 ,徐强 ,王琳琳来源:2014测绘学会|2014年12月26日
Abstract:
In order to improve the accuracy of GPS navigation and positioning, carrier phase observations have to cycle slips in the rapid and accurate detection and correction. The paper analyzed the GPS satellite signals and reconstruction of the composition of the carrier-related content, analysis of the cycle slip causes and characteristics of the cycle slip detection limit of the structure, on the basis of several proposed single-frequency GPS carrier phase for the week slip detection and correction methods. Comprehensive comparison of several detection methods chosen to facilitate computer programming after the polynomial fitting to focus on the GPS cycle slip detection and correction of the theory and algorithms in-depth research, the preparation of the GPS cycle slip detection and correction procedures, the use of GPS measurement data, the experimental procedure, and the effect of the above methods to detect a more detailed analysis to clarify the feasibility of this method. Finally, after the GPS modernization, it presents several cycle slip detection and correction method and mathematical models, theoretical analysis of the detection capabilities of these methods
This article will help to deepen the existing system of cycle slip detection and repair methods, the use of polynomial fitting in this paper can be more easily isolate and eliminate cycle slips for subsequent data processing to provide "clean" the data source
Keywords: GPS navigation and positioning ;Single-frequency ; Cycle slip detection and correction; polynomial fitting; higher difference method; Kalman filter; wavelet algorithm; Programming