[1] Cui Bingbo, Chen Xiyuan,. A comparison analysis of multipath extract methodsin short-baseline applications of GPS [J]. Journal of Southeast University (English Edition), 2014, 30 (3): 315-317. [doi:10.3969/j.issn.1003-7985.2014.03.011]

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A comparison analysis of multipath extract methodsin short-baseline applications of GPS()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

30

Issue:

2014 3

Page:

315-317

Research Field:

Electromagnetic Field and Microwave Technology

Publishing date:

2014-09-30

Info

Title:

A comparison analysis of multipath extract methodsin short-baseline applications of GPS

Author(s):

Cui Bingbo;  Chen Xiyuan

School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China

Keywords:

multipath extraction;  singular spectrum analysis;  stationary wavelet transform

PACS:

TN967.1

DOI:

10.3969/j.issn.1003-7985.2014.03.011

Abstract:

In order to eliminate the multipath errors existing in static short-baseline applications, a novel de-noising method based on a singular spectrum analysis(named as DSSA)is introduced to extract multipath signals. The multipath error is extracted from the double difference(DD)residuals by DSSA and then applied to the correct multipath error in subsequent measurements based on the correlation among adjacent epochs. Methods based on discrete wavelet transform(DWT)and stationary wavelet transform(SWT)are introduced as comparisons of DSSA based on analysis of a simulated signal. Real baseline residuals are tested to verify different extract methods. Results show that compared with the SWT, the DSSA improves the root mean square(RMS)of the residual by 48.6% and achieves a time reduction of 75.3%.

References:

[1] Mosavi M R, Azarbad M R. Multipath error mitigation based on wavelet transform in L1 GPS receivers for kinematic applications [J]. International Journal of Electronics and Communications, 2013, 67(10):875-884.
[2] Azarbad M R, Mosavi M R. A new method to mitigate multipath error in single-frequency GPS receiver with wavelet transform [J].GPS Solutions, 2014, 18(2):189-198.
[3] Zhong P, Ding X L, Zheng D W. Adaptive wavelet transform based on cross-validation method and its application to GPS multipath mitigation [J].GPS Solutions, 2008, 12(2):109-117.
[4] Su L, Zhao G L, Zhang R Y. Translation-invariant wavelet de-noising method with improved thresholding[C]//International Symposium on Communications and Information Technologies. Beijing, China, 2005: 599-602.
[5] Hassani H, Soofi A S, Zhigljavsky A A. Predicting daily exchange rate with singular spectrum analysis[J]. Nonlinear Analysis: Real World Applications, 2010, 11(3): 2023-2034.
[6] Chen J, Shang X D, Zhao X. GPS multipath effect mitigation algorithm based on empirical mode decomposition [C]//Proceedings of the 12th International Conference on Engineering, Science, Construction, and Operations in Challenging Environments—Earth and Space. Honolulu, USA, 2010:2395-2404.
[7] Lau L. Comparison of measurement and position domain multipath filtering techniques with the repeatable GPS orbits for static antennas [J].Survey Review, 2012, 44(324):9-16.
[8] Dai W J, Huang D W, Cai C S. Multipath mitigation via component analysis methods for GPS dynamic deformation monitoring[J]. GPS Solutions, 2014, 18(3):417-428.
[9] Oropeza V E. The singular spectrum analysis method and its application to seismic data de-noising and reconstruction [D]. Edmonton, Alberta, Canada: Department of Physics, University of Alberta, 2010.
[10] Chen Q, van Dam T, Sneeuw N, et al. Singular spectrum analysis for modeling seasonal signals for GPS time series [J].Journal of Geodynamics, 2013, 72:25-35.

Memo

Memo:

Biographies: Cui Bingbo(1986—), male, graduate; Chen Xiyuan(corresponding author), male, doctor, professor, chxiyuan@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.51375087, 50975049), the Ocean Special Funds for Scientific Research on Public Causes(No.201205035-09).
Citation: Cui Bingbo, Chen Xiyuan.A comparison analysis of multipath extract methods in short-baseline applications of GPS[J].Journal of Southeast University(English Edition), 2014, 30(3):315-317.[doi:10.3969/j.issn.1003-7985.2014.03.011]

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