© The Institution of Engineering and Technology
Micro-Doppler of a rotor is of great importance in classifying and identifying a helicopter. In the past, the blade of a rotor was modelled as a rod. However, the blade has different tip shapes, which can be supplementary information for helicopter identification. The signal model of blades with three different tip types is derived. By analysing the theoretical and experimental data in the time–frequency domain, the potential of the tip shape in helicopter identification is shown.
References
-
-
1)
-
4. Chen, V., Li, F., Ho, S.-S., Wechsler, H.: ‘Micro-Doppler effect in radar: phenomenon, model, and simulation study’, IEEE Trans. Aerosp. Electron. Syst., 2006, 42, (1), pp. 2–21 (doi: 10.1109/TAES.2006.1603402).
-
2)
-
2. Peng, L., Wang, J., Sun, J.P.: ‘Classification of free rigid targets with micro-motions using inertial characteristic from radar signatures’, Electron. Lett., 2014, 50, (13), pp. 950–952 (doi: 10.1049/el.2014.1091).
-
3)
-
3. Oh, B., Guo, X., Wan, F., et al: ‘Micro-Doppler mini-UAV classification using empirical-mode decomposition features’, Geosci. Remote Sens. Lett., 2018, 15, (2), pp. 227–231 (doi: 10.1109/LGRS.2017.2781711).
-
4)
-
4. Zhang, R., Li, G., Clemente, C., et al: ‘Multi-aspect micro-Doppler signatures for attitude-independent L/N quotient estimation and its application to helicopter classification’, Radar Sonar Navig., 2017, 11, (4), pp. 701–708 (doi: 10.1049/iet-rsn.2016.0271).
-
5)
-
2. Zuo, L., Li, M., Zhang, X., et al: ‘Two helicopter classification methods with a high pulse repetition frequency radar’, Radar Sonar Navig., 2013, 7, (3), pp. 312–320 (doi: 10.1049/iet-rsn.2012.0278).
-
6)
-
6. Brocklehurst, A., Barakos, G.N.: ‘A review of helicopter rotor blade tip shapes’, Prog. Aerosp. Sci., 2013, 56, (2013), pp. 35–74 (doi: 10.1016/j.paerosci.2012.06.003).
http://iet.metastore.ingenta.com/content/journals/10.1049/el.2018.5390
Related content
content/journals/10.1049/el.2018.5390
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Correspondence
This article has following corresponding article(s):
in brief