Browse > Article
http://dx.doi.org/10.5139/JKSAS.2009.37.8.767

Improvement of INS-GPS Integrated Navigation System using Wavelet Thresholding  

Kang, Chul-Woo (서울대학교 기계항공공학부 대학원)
Park, Chan-Gook (서울대학교 기계항공공학부)
Cho, Nam-Ik (서울대학교 전기공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.8, 2009 , pp. 767-773 More about this Journal
Abstract
This research have introduced wavelet signal processing technic for improving navigation signals. INS signals can be distorted with conventional pre-filtering method such as low-pass filtering by unwanted smoothing on real signals. But in this paper, wavelet thresholding method is implemented to INS signal to denoise for INS-GPS integrated system. This method reduces signal noise but not distorts the rapid varing signal. And this paper applied thresholding to INS-GPS integrated navigation system and improved navigation performance.
Keywords
Wavelet denoising; INS; Inertial sensor; Thresholding;
Citations & Related Records
연도 인용수 순위
  • Reference
1 A. Soloviev, F. van Graas, "Enhancementof Integrated GPS/INS Performance UtilizingFrequency Domain Implementation of INSCalibration", NAVIGATION, Journal of theInstitute of Navigation, Vol. 54, No. 2, 2007.
2 NOURELDIN Aboelmagd, OSMAN Ahmed, EL-SHEIMY Naser", A Neuro-Wavelet Method for Multi-Sensor System Integration for Vehicular Navigation", Measurement science & technology, 2004, vol. 15, no. 2.   DOI   ScienceOn
3 Sameh Nassar, Naser El-Sheimy, "WaveletAnalysis for Improving INS and INS/DGPSNavigation Accuracy", The Journal of Navigation,VOL 58; PART 1, pp. 119-134, 2005.   DOI   ScienceOn
4 김성필, 김응태, 성기정,“웨이블릿을 이용한GPS/INS/기압고도계 센서융합”, 한국항공우주학회 2008년도 추계학술발표회, 2008. 11.
5 Andrew K. Chan, Cheng Peng, "Waveletsfor Sensing Technologies" Artech HousePublishers, 2003.
6 Jaideva C. Goswami, Andrew K. Chan,"Fundamentals of Wavelets : Theory,Algorithms, and Applications," Wiley, 1999.
7 Ingrid Daubechies, Ten lectures onwavelets”. Philadelphia, PA, USA, Society forIndustrial and Applied Mathematics, 1992.
8 Byung-Jun Yoon, P. P. Vaidyanathan, "Wavelet-based Denoising By Customized Thresholding", Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on, May 2004.   DOI
9 D. H. Titterton and J. L. Weston,Strapdown Inertial Navigation Technology.Stevenage, U.K. : Peregrinus, 1997.