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REN Peng, WANG Yu-lan, KANG Da-yong, CHEN Yong, ZHOU Ding-fu, WU Bo, YANG Ze-hou, TONG Jing. Numerical optimization in VAD inversion technique for wind lidar[J]. LASER TECHNOLOGY, 2009, 33(6): 664-666,669. DOI: 10.3969/j.issn.1001-3806.2009.06.030
Citation: REN Peng, WANG Yu-lan, KANG Da-yong, CHEN Yong, ZHOU Ding-fu, WU Bo, YANG Ze-hou, TONG Jing. Numerical optimization in VAD inversion technique for wind lidar[J]. LASER TECHNOLOGY, 2009, 33(6): 664-666,669. DOI: 10.3969/j.issn.1001-3806.2009.06.030

Numerical optimization in VAD inversion technique for wind lidar

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  • Received Date: July 15, 2008
  • Revised Date: September 08, 2008
  • Published Date: December 24, 2009
  • In order to improve the speed and accuracy of inversion of the wind obtained with a Doppler wind lidar,optimized Newton-Gaussian method of least squares was used to solve the wind inversion model.Its step-size and initial value of Newton-Gaussian were discussed and adjusted so that the method became more robust,and some inherent defects of traditional methods of velocity azimuth display(VAD) inversion were overcome.The inversion of low and mid partial wind-field was achieved with the algorithm adopted in an all-fiber Doppler weather radar.The algorithm not only improves the speed and accuracy of inversion of the wind,but also makes the result of inversion more stable and suitable for real-time calculation.
  • [1]
    WANG Zh K,BI J M,ZHOU X,et al.Investigation on dual-beamDoppler speedometer based on CO2 lasers[J].Laser Technology,2006,30(2):183-185(in Chinese).
    [2]
    LIU J Q,BU L B,ZHOU J,et al.Optical frequency discriminator of a mobile direct-detection Doppler wind lidar[J].Chinese Journal of Lasers,2006,33(10):1339-1344(in Chinese).
    [3]
    HU H W,HU Q Q.Beam scanning and inversion method for lidar detecting wind[J].Acta Optica Sinica,2001,21(6):720-731(in Chinese).
    [4]
    TAO Z Y.A study of Doppler radar VAD technique[J].Quarterly Journal of Applied Meteorlogy,1995,6(1):109-113(in Chinese).
    [5]
    SUN J Z,FLICKER D W,LILLY D K.Recovery of three-dimensional wind and temperature field from simulated single-doppler radar data[J].Journal of the Atmospheric Sciences,1991,48(6):876-890.
    [6]
    WALDTEUFEL P,CORBIN H.On the analysis of single-Doppler radar data[J].Journal of Applied Meteorology,1979,18(4):532-542.
    [7]
    THOMAS M,SRIVASTAVA R C.An improved version of the extended velocity-azimuth display analysis of single-Doppler radar data[J].Journal of Atmospheric and Oceanic Technology,1991,8(4):453-466.
    [8]
    ROBERT R,DUSAN Z.Subsynoptic-scale vetical wind revealed by dual Doppler-radar and VAD analysis[J].Journal of the Atmospheric Sciences,1980,37(8):644-654.
    [9]
    SRIVASTAVA R C.A method for improving rain estimates from vertical-incidence Doppler radar observations[J].Journal of Atmospheric and Oceanic Technology,1990,7(5):769-773.
    [10]
    WAN R,TANG D Zh,ZHANG P,et al.VAD eiementary analysis of nonlinear wind field[J].Scientia Meteorologica Sinica,2003,23(3):314-324(in Chinese).

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