Laser & Optoelectronics Progress, Volume. 56, Issue 18, 180003(2019)
Latest Development of Laser Doppler Wind Measurement Technology
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![Conceptual drawings of MARLI measurement. (a) Conceptual drawing in Mars polar orbit; (b) measurement orientation; (c) dual-beam concept of instrumental lowing vector wind measurement[22]](/Images/icon/loading.gif){kind=icon}
Fig. 5. Conceptual drawings of MARLI measurement. (a) Conceptual drawing in Mars polar orbit; (b) measurement orientation; (c) dual-beam concept of instrumental lowing vector wind measurement[22]
Fig. 7. WindTracer and wind shear measurement results. (a) Photo of WindTracer; (b) wind shear detection[32-33]
Fig. 10. WindImager Doppler wind lidar. (a) Picture of real product; (b) verification test charts[36]
Fig. 11. Windcube 400s Doppler wind lidar. (a) Picture of real product; (b) airport test result[37]
Fig. 13. Application of civil low altitude Doppler wind lidar Molas B300 in wind power industry[39]
Table 1. Comparison of coherent detection and direct detection Doppler wind lidar[8]
View tableTable 1. Comparison of coherent detection and direct detection Doppler wind lidar[8]
Contrastive item Coherent detection lidar Direct detection liar Wavelength sand lasers CO2 gas lasers at 10.6 μm, Tm∶LuAG or Tm, Ho∶YAG at 2 μm, Er-doped fiber at 1.5-1.6 μm Nd∶YAG at 1 064 nm, frequency doubled at 532 nm and tripled at 355 nm Atmospheric backscatter atmospheric aerosol molecules with Rayleigh-Brillouin line shape (broad bandwidth), aerosol and cloud return Receiver mainly heterodyne detection 1) edge technology: edge filter based on optical interferometer, such as F-P (Farby-Perot) etalon or molecular edge absorption filter; 2) fringe image technology: fringe image detection based on optical interferometer, such as F-P interferometer Calibration no calibration needed calibration needed to obtain relationship between Doppler frequency shift and detected signal Additional parameter no additional parameters needed for wind retrieval atmospheric temperature and pressure needed for correction of retrieved wind from molecular backscatter Technology readiness systems commercially available mainly for research systems Main application 1) vertical wind profiles of the atmosphere from the ground to an altitude about 10 km; 2) wind shear and gust front detection, as well as other high-resolution and high-density wind measurements at high data rates; 3) aircraft wake detection and tracking near the airport; 4) aerial wind measurements to detect clear-sky turbulence in front of aircraft; 5) weather forecast; 6) wind power monitoring wind sensing for higher altitudes of upper troposphere, stratosphere, and mesosphere, such as orbital and interstellar wind measurements
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Fumin Ma, Yong Chen, Zehou Yang, Dingfu Zhou, Xiaofeng Li, Chunli Chen, Litian Feng, Chen Yu. Latest Development of Laser Doppler Wind Measurement Technology[J]. Laser & Optoelectronics Progress, 2019, 56(18): 180003
Paper Information
Category: Reviews
Received: Jan. 15, 2019
Accepted: Apr. 10, 2019
Published Online: Sep. 9, 2019
The Author Email: Yong Chen (151953766@qq.com)
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