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http://dx.doi.org/10.12673/jant.2018.22.5.359

Abnormal Detection of CTLS Aircraft Wing Structure using SWT  

Shin, Hyun-Sung (Department of Aviation system Engineering, Hanseo University)
Hong, Gyo-Young (Department of Avionics, Hanseo University)
Publication Information
Journal of Advanced Navigation Technology / v.22, no.5, 2018 , pp. 359-366 More about this Journal
Abstract
In this paper, the noise is removed by using CTLS aircraft installed FBG sensor inside the aircraft wing. We suggest a normal wavelet transform scheme with motion - invariant characteristics for noise reduction. In the case of installing FBG sensors inside the composite material as in CTLS, large and small empty spaces and parts or sections are generated between the adhesive layers, and a signal splitting problem occurs. FBG sensor is not affected by noise. but eletromagnetic, light source, light detector and signal processing device are influeced by noise because these are eletronic components what affected by eletromagnetic wave. because of this, errors are occured. Experimental results show that the noise can be removed using normal wavelet transform and more accurate data detection is possible.
Keywords
composite; structural health monitoring; FBG sensor; stationary wavelet transform; discrete wavelet transform;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 G. H. Lee, A study on structural health monitoring of solar powered aircraft composite wings using fiber bragg grating Sensors, Master's degree, Seoul National University of Science and Technology, Seoul, Korea, 2013.
2 M. R. Ham, H.S. Choi, and W.J. Choi, "The emergence of composite material aircraft and review of technical," Korea Association of Defense Industry Studies, Vol.16, No.2, pp.259-283, 2009.12.
3 S. W. Park, H.J. Yoon, S. O. Park, J. Y. Song, and C. G. Kim, "Design scheme of FBG sensor system for aircraft application," in 2005 Korea Composite Materials Society Fall Conference, Daegu: Korea, pp. 215-218, 2005.11.
4 G. C. Kahandawa, J. Epaarachchi, H. Wang, and K. T. Lau, "Use of FBG Sensors for SHM in aerospace structures," Photonic Sensors, Vol. 2, No.3, pp. 203-214, 2012.   DOI
5 S. W. Kim, S. J. Yoo, E. Lee, I, B. Kwon, and D. J. Yoon, "Adhesive layer monitoring of composite structures using embedded FBG sensors," in Korean Society for Aeronautical & Space Sciences Conference, Gyeongju: Korea, pp. 294-299, 2011.
6 X. Zhou, C. Zhou, and B. G. Stewart, "Comparsions of discrete wavelet transform, wavelet packet transform and stationary wavelet transform in denoising PD Measurement data," in Conference Record of the 2006 IEEE International Symposium on Electrical Insulation, Toronto: Canada, pp. 237-240, 2006.6.
7 G. H. Lee, A Study on structural health monitoring of solar powered aircraft composite wings using fiber bragg grating sensors, Master's degree, Seoul National University of Science and Technology, Seoul, Korea, 2013.
8 H. J. Park, Modal identification and damage detection of structures using fiber bragg grating sensors, Master's degree, Korea Advanced Institute of Science and Technology, Daejeon, Korea, 2006.
9 S. H. Kim, K. S. Choi and G. Y. Hong, "Spike rejection method for improving altitude control performance of qadrotor UAV using ultrasonic rangefinder," The Journal of Advanced Navigation Technology, Vol. 20, No. 3, pp 1-5, 2016.6.   DOI
10 S. P. Kim, E. T. Kim, and K. J. Seong, “Sensor fusion of GPS/INS/baroaltimeter using wavelet analysis,” International Journal of Control Automation and Systems, Transactions on Control Automation and Systems Engineering, Vol. 14, No. 12, pp. 1232-1237, Dec. 2008.
11 J. S. Sim, Efficient hardware design for discrete wavelet transform algorithm, Master's degree, Kyunghee University, Seoul, 2004.2.
12 H. R. Yu, Study for the noise rejection threshold value decision with using band information of stationary wavelet, Master's degree, Daejeon University, Daejeon, Korea, 2007.
13 M.G. Sumithra, K. Thanushkodi "Performance evaluation of different thresholding methods in time adaptive wavelet based speech enhancement," International Journal of Engineering and Technology, Vol. 1, No. 5, pp.439-447, Dec. 2009.   DOI
14 S. H. Kim, Spike rejection method of quadrotor UAV using ultrasonic rangefinder, Master's degree, Hanseo University, Korea, 2017.2.