NDLI: Adaptive detection and modification algorithm of GPS cycle slips based on wavelet analysis

Content Provider	IEEE Xplore Digital Library
Author	Liu ting Li suilao Wang rui Jiang wei Jia jichao
Copyright Year	2011
Description	Author affiliation: Northwestern Polytechnical University, 2:the 91439 Unit of PLA, Xi'an Shaanxi (Liu ting; Li suilao; Wang rui; Jiang wei; Jia jichao)
Abstract	Based on the analysis of the causes and characteristics of GPS cycle slip, an adaptive detection and modification algorithm is proposed using the wavelet threshold de-noising theory. The original double difference of GPS carrier-phase is transformed with wavelet, and the singular values in the high-frequency coefficients are replaced by linear interpolation. Then the signal is reconstructed with the replaced high-frequency coefficients and the original low-frequency parts. The difference between the reconstructed signal and the original one is applied for cycle slip detection. The time and correction value of cycle slip are determined by the modulus maxima of the difference signal. Finally, an experiment was taken to test the method, and it shows that the method is effective for detecting and modifying the cycle slips of minimum value of one cycle, with minimum interval of one epoch.
Starting Page	1907
Ending Page	1910
File Size	234073
Page Count	4
File Format	PDF
ISBN	9781612847191
e-ISBN	9781612847221
DOI	10.1109/MEC.2011.6025859
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wavelet transforms Interpolation Satellites Cycle slip Wavelet transform Noise Receivers GPS Global Positioning System
Content Type	Text
Resource Type	Article

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