Cycle Slip Detection and Correction of GPS Carrier Phase Based on Wavelet Transform and Neural Network

2006 ◽  
Author(s):  
Tinghua Yi ◽  
Hongnan Li ◽  
Guoxin Wang
Keyword(s):  
Neural Network ◽  
Wavelet Transform ◽  
Carrier Phase ◽  
Cycle Slip ◽  
Cycle Slip Detection ◽  
Slip Detection

Research of Double-Differenced Carrier Phase Cycle Slip Detection Based on Wavelet Analysis

2012 ◽  
Vol 588-589 ◽  
pp. 1028-1032
Author(s):  
Yi De Li ◽  
Zhan Feng Li ◽  
Xi Nan Li
Keyword(s):  
Wavelet Analysis ◽  
Carrier Phase ◽  
Error Term ◽  
Measured Data ◽  
Cycle Slip ◽  
Wavelet Base ◽  
Phase Cycle ◽  
Data Pretreatment ◽  
Cycle Slip Detection ◽  
Slip Detection

It is easier to develop the cycle slip phenomena during the carrier phase observation in GPS. In order to improve the reliability and accuracy of the system measurement, we need to diagnose and find out the position of the cycle slip, and then fix it before the data pretreatment stage which is ahead of the adjustment. Using the double-differenced carrier phase observables can eliminate the correlative error term and improve the accuracy of the measurement. Therefore, the essay studies the method of the double-differenced carrier phase cycle slip detection based on the wavelet analysis, and finally test the measured data. The experimental results showed that the detection of cycle slip is very sensitive when we select the suitable wavelet base.

Cycle-Slip Detection and Correction for Carrier Phase Synchronization in Coded Systems

2021 ◽  
Vol 25 (1) ◽  
pp. 113-116
Author(s):  
Desheng Shi ◽  
Weijie Yuan ◽  
Shuangyang Li ◽  
Nan Wu ◽  
Derrick Wing Kwan Ng
Keyword(s):  
Carrier Phase ◽  
Phase Synchronization ◽  
Cycle Slip ◽  
Cycle Slip Detection ◽  
Coded Systems ◽  
Carrier Phase Synchronization ◽  
Slip Detection

scholarly journals A New Cycle Slip Detection and Repair Method Using a Single Receiver’s Single Station B1 and L1 Frequencies in Ground-Based Positioning Systems

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 346
Author(s):  
Xinyang Zhao ◽  
Zun Niu ◽  
Gaoxu Li ◽  
Qiangqiang Shuai ◽  
Bocheng Zhu
Keyword(s):  
Carrier Phase ◽  
Outdoor Environment ◽  
Cycle Slip ◽  
Dual Frequency ◽  
Positioning Systems ◽  
Cycle Slips ◽  
Single Station ◽  
Cycle Slip Detection ◽  
Phase Combination ◽  
Slip Detection

The detection and repair of the cycle slip is a key step for high precision navigation and positioning in indoor environments. Different methods have been developed to detect and repair cycle slips for carrier phase processing. However, most approaches are designed to eliminate the effects of the ionosphere in an outdoor environment, and many of them use pseudorange (code) information that is no longer suitable for indoor multipath environments. In this paper, a method based on the geometry-free combination without the pseudorange data is proposed to detect and fix cycle slips. A ground-based navigation system is built for data collection. Unlike the traditional dual-frequency cycle slip detection method, the Beidou B1, GPS L1 carrier phase combination is used instead of the B1, B2, or L1, L2 carrier phase combination, Ublox is used for data collecting. For fixing the cycle slips quickly, an improved adaptive Particle Swarm Optimization (PSO) algorithm is employed. We compared the performance of the new method with the existing two methods using simulated data in different conditions. The results show that the proposed method has better performance than other methods.

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