1. Marquez, F. P. G., J. M. P. Perez, A. P. Marugan, and M. Papaelias, "Identification of critical components of wind turbines using FTA over the time," Renewable Energy, Vol. 87, 869-883, March 2016.
doi:10.1016/j.renene.2015.09.038
2. Yang, R., Y. He, and H. Zhang, "Progress and trends in nondestructive testing and evaluation for wind turbine composite blade," Renewable and Sustainable Energy Reviews, Vol. 60, 1225-1250, July 2016.
doi:10.1016/j.rser.2016.02.026
3. Ciang, C. C., J.-R. Lee, and H.-J. Bang, "Structural health monitoring for a wind turbine system: A review of damage detection methods," Measurement Science and Technology, Vol. 19, No. 12, 122001, December 2008.
doi:10.1088/0957-0233/19/12/122001
4. Adams, D., J. White, M. Rumsey, and C. Farrar, "Structural health monitoring of wind turbines: Method and application to a HAWT," Wind Energy, Vol. 14, No. 4, 603-623, May 2011.
doi:10.1002/we.437
5. Lu, B., Y. Li, X. Wu, and Z. Yang, "A review of recent advances in wind turbine condition monitoring and fault diagnosis," Power Electronics & Machines in Wind Applications, PEMWA, 1-7, 2009.
6. Qiao, W. and D. Lu, "A survey on wind turbine condition monitoring and fault diagnosis — Part I: Components and subsystems," IEEE Transactions on Industrial Electronics, Vol. 62, No. 10, 6536-6545, October 2015.
doi:10.1109/TIE.2015.2422112
7. Zhou, H. F., H. Y. Dou, L. Z. Qin, Y. Chen, Y. Q. Ni, and J. M. Ko, "A review of full-scale structural testing of wind turbine blades," Renewable and Sustainable Energy Reviews, Vol. 33, 177-187, May 2014.
doi:10.1016/j.rser.2014.01.087
8. Kharkovsky, S. and R. Zoughi, "Microwave and millimeter wave nondestructive testing and evaluation — Overview and recent advances," IEEE Instrumentation & Measurement Magazine, Vol. 10, No. 2, 26-38, April 2007.
doi:10.1109/MIM.2007.364985
9. Zhu, Y.-K., G.-Y. Tian, R.-S. Lu, and H. Zhang, "A review of optical NDT technologies," Sensors, Vol. 11, No. 12, 7773-7798, August 2011.
doi:10.3390/s110807773
10. Li, Z., A. Haigh, C. Soutis, A. Gibson, and R. Sloan, "Microwaves sensor for wind turbine blade inspection," Applied Composite Materials, November 2016.
11. Fukasawa, R., "Terahertz imaging: Widespread industrial application in non-destructive inspection and chemical analysis," IEEE Transactions on Terahertz Science and Technology, Vol. 5, No. 6, 1121-1127, 2015.
12. Wetzel, K., K. Lee, A. Tran, B. Stakenborghs, and R. J. Woodward, "Volumetric inspection of wind turbine blades using a microwave interferometric technique," Materials Evaluation, 477-484, 2016.
13. Ghasr, M. T., M. J. Horst, M. R. Dvorsky, and R. Zoughi, "Wideband microwave camera for real-time 3-D imaging," IEEE Transactions on Antennas and Propagation, Vol. 65, No. 1, 258-268, January 2017.
doi:10.1109/TAP.2016.2630598
14. Hsu, D. K., K.-S. Lee, J.-W. Park, Y.-D. Woo, and K.-H. Im, "NDE inspection of terahertz waves in wind turbine composites," International Journal of Precision Engineering and Manufacturing, Vol. 13, No. 7, 1183-1189, July 2012.
doi:10.1007/s12541-012-0157-5
15. Li, C., Z. Peng, T.-Y. Huang, T. Fan, F.-K. Wang, T.-S. Horng, J.-M. Munoz-Ferreras, R. GomezGarcia, L. Ran, and J. Lin, "A review on recent progress of portable short-range noncontact microwave radar systems," IEEE Transactions on Microwave Theory and Techniques, 1-15, 2017.
16. Moll, J., P. Arnold, M. M¨alzer, V. Krozer, D. Pozdniakov, R. Salman, S. Rediske, M. Scholz, H. Friedmann, and A. Nuber, "Radar-based structural health monitoring of wind turbine blades: The case of damage detection," Structural Health Monitoring: An International Journal, 147592171772144, August 2017.
doi:10.1177/1475921717721447
17. Arnold, P., J. Moll, M. Malzer, V. Krozer, D. Pozdniakov, R. Salman, S. Rediske, M. Scholz, H. Friedmann, and A. Nuber, "Radar-based structural health monitoring of wind turbine blades: The case of damage localization," Wind Energy, January 2018.
18. Moll, J., V. Krozer, P. Arnold, M. D¨urr, R. Zimmermann, R. Salman, D. H¨ubsch, H. Friedmann, A. Nuber, M. Scholz, and P. Kraemer, "Radar-based structural health monitoring of wind turbine blades," 19th World Conference on Non-Destructive Testing, 1-8, Munich, Germany, 2016.
19. Moll, J., M. Malzer, J. Simon, V. Krozer, M. Feulner, H. Friedmann, A. Nuber, R. Salman, D. Pozdniakov, and M. Durr, "Field demonstration of radar-based SHM of wind turbine blades at a 2 MW wind turbine: Installation, data acquisition and signal analysis," 11th International Workshop on Structural Health Monitoring, 1-8, Stanford, USA, 2017.
20. Scholz, N., J. Moll, M. Malzer, K. Nagovitsyn, and V. Krozer, "Random bounce algorithm: realtime image processing for the detection of bats and birds: Algorithm description with application examples from a laboratory flight tunnel and a field test at an onshore wind energy plant," Signal, Image and Video Processing, Vol. 10, No. 8, 1449-1456, November 2016.
doi:10.1007/s11760-016-0951-0
21. Moll, J. and V. Krozer, "Radar-based mechanical vibration sensing for structural health monitoring applications: A comparison of radar transceiver measurements at 24 GHz and 100 GHz," 8th European Workshop on Structural Health Monitoring, 1-6, 2016.
22. Moll, J., M. Malzer, V. Krozer, D. Pozdniakov, R. Salman, J. M. Beetz, and M. Kossl, "Activity monitoring of bats in a laboratory flight tunnel using a 24 GHz FMCW radar system," 11th European Conference on Antennas and Propagation, 2541-2545, Paris, France, 2017.
23. Soumekh, M., Synthetic Aperture Radar Signal Processing with MATLAB Algorithms, Wiley, 1999.
24. Sakamoto, T., T. Sato, P. Aubry, and A. Yarovoy, "Frequency-domain Kirchhoff migration for near-field radar imaging," IEEE Conference on Antenna Measurements & Applications, 1-4, 2015.
25. Sakamoto, T., T. Sato, P. J. Aubry, and A. G. Yarovoy, "Ultra-wideband radar imaging using a hybrid of kirchhoff migration and stolt F-K migration with an inverse boundary scattering transform," IEEE Transactions on Antennas and Propagation, Vol. 63, No. 8, 3502-3512, 2015.
doi:10.1109/TAP.2015.2431725
26. Zhuge, X. and A. G. Yarovoy, "Three-dimensional near-field MIMO array imaging using range migration techniques," IEEE Transactions on Image Processing, Vol. 21, No. 6, 3026-3033, 2012.
doi:10.1109/TIP.2012.2188036
27. Gorham, L. A. and L. J. Moore, "SAR image formation toolbox for MATLAB,", 769906-769906-13, April 2010.
28. Arnold, P., J. Moll, and V. Krozer, "Design of a sparse antenna array for radar-based structural health monitoring of wind turbine blades," IET Radar, Sonar & Navigation, Vol. 11, No. 8, 1259-1265, August 2017.
doi:10.1049/iet-rsn.2016.0355