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| Content Provider | IET Digital Library |
|---|---|
| Author | Nai, Feng Torres, Sebastián Palmer, Robert |
| Abstract | The unwanted return signals from wind turbines can contaminate the weather-radar data that are used by forecasters and automatic algorithms to issue forecast and warnings for severe weather. Since wind turbines have moving components that generate return signals with non-zero Doppler velocity, traditional ground clutter filters are ineffective at removing wind turbine clutter (WTC). In this study, a WTC mitigation algorithm using the range-Doppler spectrum is developed and tested with simulated weather and WTC signals. Once the general locations of the WTC contamination are known, the proposed range-Doppler regression (RDR) algorithm exploits the spatial continuity of weather signals in the range domain to mitigate the WTC contamination while retaining as much weather signal as possible. In contrast to other proposed mitigation algorithms, the RDR algorithm is suited for real-time implementation on typical operational weather radars. Simulated data are used to optimise the parameters of the algorithm and evaluate its performance for stratiform- and convective-precipitation cases with different degrees of WTC contamination. Finally, a real data case is processed to illustrate the RDR algorithm's effectiveness. The results show that the RDR algorithm has the potential to effectively reduce the bias in spectral-moment estimates caused by WTC contamination in an operational environment. |
| Starting Page | 178 |
| Ending Page | 190 |
| Page Count | 13 |
| ISSN | 17518784 |
| Volume Number | 7 |
| e-ISSN | 17518792 |
| Issue Number | Issue 2, Feb (2013) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rsn/7/2 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rsn.2012.0225 |
| Journal | IET Radar, Sonar & Navigation |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Atmospheric/ionospheric/magnetospheric Technique And Equipment Automatic Algorithm Data And Information; Acquisition, Processing, Storage And Dissemination in Geophysics Doppler Radar Geophysical Signal Processing Instrumentation And Technique For Geophysical, Hydrospheric And Lower Atmosphere Research Meteorological Radar Nonzero Doppler Velocity Probability Theory Radar Clutter Radar Equipment Radar Signal Processing Range Doppler Regression Algorithm Range Doppler Spectral Processing Regression Analysis Return Signal Signal Processing And Detection Statistics Stochastic Linearised SCUC System And Application Weather Radars Weather Signal Wind Turbine Wind Turbine Clutter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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