Short-range Doppler-radar signatures from industrial wind turbines: Theory, simulations, and measurements

Jose Maria Munoz-Ferreras, Zhengyu Peng, Yao Tang, Roberto Gomez-Garcia, Daan Liang, Changzhi Li

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Industrial wind turbines are large constructions that require in-field monitoring. In this paper, short-range Doppler radar signatures of wind turbines are both mathematically analyzed and practically verified through simulations and experiments. Two custom-designed radar prototypes that operate at the C and K bands, respectively, are employed in the acquisition campaign. The unique features of the radar signal - in particular, some observed energetic flashes in the time-Doppler map - appear as curved lines for specific acquisition scenarios and/or for nonstraight blades. Furthermore, it is demonstrated that the use of high-frequency radar systems is beneficial in terms of improved spectrogram resolution. Experimental results coming from a 50-m-height wind turbine and a curved-blade 12-m-height turbine are also discussed, in this paper, in the context of the provided theoretical and simulation frameworks. This paper paves the way for noncontact structural health monitoring of industrial-type wind turbines through portable low-cost Doppler radar sensors.

Original languageEnglish
Article number7487021
Pages (from-to)2108-2119
Number of pages12
JournalIEEE Transactions on Instrumentation and Measurement
Issue number9
StatePublished - Sep 2016


  • Doppler radars
  • flashes
  • spectrogram
  • structural health monitoring (SHM)
  • wind turbine
  • wireless sensors


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