Serhat GÖKKAN, Betül YILMAZ, Caner ÖZDEMİR

AN EXPERIMENTAL STUDY ON DETECTING AND IMAGING CAVITY REGIONS INSIDE TREE TRUNK USING CIRCULAR BACK PROJECTION FOCUSING ALGORITHM

In this work, we have presented experimental study for detecting cavity regions inside a tree trunk using circular back projection focusing algorithm (CBPA). First, the validity of CBPA was questioned and then checked by the help of a simulation scenario that were generated using perfect point-scatterers in Matlab programming environment. After achieving perfect reconstruction of the simulated cavity structure together with the tree-body in the simulated scenario, the implementation of CBPA was applied to a real tree-interior imaging radar (TIIR) experiments that were conducted in the laboratory. The resultant focused TIIR radar images of measured data have demonstrated that CBPA can be a strong candidate and successfully utilized for migrating the raw backscattered data for TIIR applications.

Keywords:

Remote sensing, radar imaging tree-penetrating radar, signal processing, back-scattered measurements,

PDF

___

[1] A. Brookes. (2007) Preventing death and serious injury from falling trees and branches, Australian Journal of Outdoor Education, 11(2), 50-59.
[2] J. Watt and D. J. Ball. (2009) Trees and the Risk of Harm, Report for the National Tree Safety Group.
[3] V. Bucur. (1995) Acoustics of Wood. CRC Press, Boca Raton, FL.
[4] S.A. Al Hagrey. (2006) Electrical resistivity imaging of wooden tree trunks,” Near Surface Geophysics, vol. 4, 177-185.
[5] G. Catena, M. Catalano, and L. Palla. (1990) Thermal infrared detection of cavities in trees,” European Journal of Forest Pathology, 20, 201–210.
[6] H. Berndt, A.P. Schniewind, G.C. Johnson. (2000) Ultrasonic energy propagation trough wood: where, when, how much, Proc. Of 12th Int. Symposium on NDT of Wood, Sopron 13-15, 57-66.
[7] M. Hasegawa, M. Takata, J. Matsumara and K. Oda. (2011) Effect of wood properties on within-tree variation in ultrasonic wave velocity in softwood, Ultrasonics 51, 296-302.
[8] J. R. Butnor, J. A. Doolittle, L. Kress, S. Cohen and K. H. Johnsen. (2001) Use of ground-penetrating radar to study tree roots in the southeastern United States, Tree Physiology 21, 1269–1278.
[9] C. Özdemir, Ş. Demirci, E. Yiğit and B. Yılmaz. (2014) A Review on Migration Methods in B-scan Ground Penetrating Radar Imaging, Mathematical Problems in Engineering, Volume,1-16.
[10] B. Yılmaz, Ş. Demirci, E. Yiğit and C. Özdemir. (2013) An Experimental Study of Through-the-Wall Radar for Life sign Detection, Proceedings of Progress in Electromagn, Research Symposium (PIERS 2013),1602-1604.
[11] M. G. Amin, Through-the-Wall Radar Imaging. (2010) Taylor and Francis, Bocaraton, FL, 2010.
[12] N.J. Redding and G.N. Newsam. (2001) Inverting the Circular Radon Transform,” DTSO Research Report DTSO-RR-0211.
[13] L.Zhou, C.Huang and Y.Su. (2012) A Fast back projection algorithm based on cross correlation for GPR imaging,” IEEE Geoscience and Remote Sensing Letters, vol.9, no.2, pp.228-232.
[14] H.Zhang, S.Ouyang, G.Wang, J.Li, S.Wu and F.Zhang. (2015) Back projection algorithm based on self correlation for ground penetrating radar imaging, Journal of Applied Remote Sensing, vol.9, 095059.
[15] S.Sardar and A.K.Mishra. (2011) “A UBW based Improved Imaging of Breast Tumors,” IEEE Applied Electromagnetics Conference (AEMC). DOI: 10.1109/AEMC.2011.6256909
[16] D.Oloumi, P. Boulanger, A.Kordzadeh and K. Rambabu.(2015) Breast Tumor Detection Using UWB Circular-SAR Tomograptic Microwave Imaging, IEEE 37th Annual International Conference in Medicine and Biology Society (EMBC). DOI: 10.1109/EMBC.2015.7320019
[17] B. Yılmaz, C. Özdemir and S. Gökkan. (2016) A focusing algorithm for tree-penetrating radar imaging: An experimental study and concept evaluation, Radar Symposium (IRS), 2016 17th International, Krakow, Poland.
[18] C. Özdemir. (2012) Inverse Synthetic Aperture Radar Imaging with Matlab Algorithms, John Wiley & Sons, Hoboken, NJ, USA.
[19] R. Bhalla, J. Moore and H. Ling. (1997) A global scattering center representation of complex targets using the shooting and bouncing ray technique,” IEEE Trans. Antennas Propagat., vol. 45, pp. 1850–1856.
[20] C. Özdemir, R. Bhalla, H. Ling. (2000) A radiation center representation of antenna radiation patterns on a complex platform,” IEEE Trans. Antennas Propagat., 48, 992-1000. [21] D. J. Daniels, Surface-Penetrating Radar, IEEE Press, 1996.
[22] R. Mersereau and A. Oppenheim. (1974) Digital reconstruction of multidimensional signals from their projections, Proceedings of the IEEE, vol. 62, no. 10, pp. 1319–1338.
[23] MATLAB, R2015a, MathWorks Inc., Natick, MA, 2015.

Sigma Mühendislik ve Fen Bilimleri Dergisi-Cover

ISSN: 1304-7191
Yayın Aralığı: Yılda 4 Sayı
Yayıncı: Yıldız Teknik Üniversitesi

Arşiv