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A Performance of Positioning Accuracy Improvement Scheme using Wavelet Denoising Filter  

Shin, Dong Soo (방위사업청 육군)
Park, Ji Ho (광운대학교 유비쿼터스 통신 연구실)
Park, Young Sik (광운대학교 유비쿼터스 통신 연구실)
Hwang, Yu Min (광운대학교 유비쿼터스 통신 연구실)
Kim, Jin Young (광운대학교 유비쿼터스 통신 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.9, no.3, 2014 , pp. 9-14 More about this Journal
Abstract
Recently, precision guided munition systems and missile defense systems based on GPS have been taking a key role in modern warfare. In warfare however, unexpected interferences cause by large/small scale fading, radio frequency interferences, etc. These interferences result in a severe GPS positioning error, which could occur late supports and friendly fires. To solve the problems, this paper proposes an interference mitigation positioning method by adopting a wavelet denoising filter algorithm. The algorithm is applied to a GPS/QZSS/Wi-Fi combined positioning system which was performed by this laboratory. Experimental results of this paper are based on a real field test data of a GPS/QZSS/Wi-Fi combined positioning system and a simulation data of a wavelet denoising filter algorithm. At the end, the simulation result demonstrates its superiority by showing a 21.6% improved result in comparison to a conventional GPS system.
Keywords
Global Positioning System; Global Navigation Satellite System; Interference Mitigation; Wavelet Transform; Wavelet Denoising Filter;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 Y. M. Hwang, J. Y. Oh, Y. H. Kim, J. Y. Kim, H. S. Kim, and G. I. Jee, "Closely Coupled Positioning Technique in Urban Environments," The Journal of Korea Society of Communication and Space Technol., vol. 7, no. 2, pp. 42-47, Sept. 2012.
2 J. B. Lundberg "Alternative algorithms for the GPS static positioning solution," Appl. Math. Comput., vol. 119, no. 1, pp. 21-34, Mar. 2001.   DOI   ScienceOn
3 H. Qi and J. B. Moore, "Direct Kalman filtering approach for GPS/INS integration," IEEE Trans. Aerosp. Electron. Syst., vol. 38, no. 2, pp. 687-693, Apr. 2002.   DOI   ScienceOn
4 S. Savasta, L. Presti, and M. Rao, "Interference mitigation in GNSS receivers by a time-frequency approach," IEEE Trans. Aerosp. Electron. Syst., vol. 49, no. 1, pp. 415-438, Jan. 2013.   DOI
5 A. Ward, A. Jones, and A. Hopper, "A new location technique for the active office," IEEE Personal Communications., vol. 4, no. 5, pp. 42-47, Oct. 1997.
6 Subburaj, K. Bhatara, S. Tangudu, J. Samuel, J. R. Ganesan, R. Ramasubramanian, K. "Spur Mitigation in High-Sensitivity GNSS Receivers", Circuits and Systems II: Express Briefs, IEEE Transactions on, pp. 100-104, vol. 61, no. 2, Feb. 2014.   DOI