Chinese Optics, Volume. 17, Issue 3, 548(2024)

Detection method of solar position using a biomimetic polarized light compass

Jiang-tao YANG1,2、*, Ming-kai WANG1,2, Si-tuo LIU1,2, Lei LIANG1,2, Zhi LIU1,2, and Yue GUO1,2
Author Affiliations
  • 1School of Electronics Information Engineering, Taiyuan University of Science & Technology, Taiyuan 030024, China
  • 2Shanxi Key Laboratory of Advanced Control and Equipment Intelligence, Taiyuan University of Science & Technology, Taiyuan 030024, China
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    Figures & Tables(20)
    Schematic diagram of the three-channel polarization imaging system
    Calibration system
    Coordinate diagram
    Flowchart of sun vector sensitivity algorithm
    Schematic diagram of rotation direction
    Schematic diagram of benchmark transformation
    The effect of iterative initial value on the algorithm
    The distribution of evaluate function
    The distribution of improved AOP evaluation function
    Simulation results of improved AOP evaluation function
    The full sky polarization measurement system
    The distributions of DOP and AOP of the solar position at different times
    Experimental data in clear weather
    The solar position calculation under occlusion
    Experimental data in clear weather in the presence of buildings
    Experimental data in clear weather in the presence of trees
    Calculation of position of the sun in aerosol weather
    Experimental data analysis chart under aerosol weather
    • Table 1. Experiment data list

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      Table 1. Experiment data list

      时间太阳的理论位置基于改进的偏振角模型计算的太阳位置误差
      $\alpha_s $hs$\alpha_s $hs$\alpha_s $hs
      8:0095.33323.45095.36523.4720.0310.022
      9:00105.21635.529105.18935.554−0.0280.025
      10:00117.81946.959117.79146.939−0.028−0.020
      11:00135.89256.827135.85756.800−0.035−0.027
      12:00162.98463.167163.01863.1430.033−0.024
      13:00196.21463.255196.17863.276−0.0360.021
      14:00223.55057.040223.51957.063−0.0320.022
      15:00241.80947.232241.83847.2120.029−0.020
      16:00254.50935.826254.54535.8070.036−0.019
      17:00264.43823.757264.46923.7830.0310.026
      18:00273.16011.486273.19211.5040.0320.018
    • Table 1. [in Chinese]

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      Table 1. [in Chinese]

      太阳位置的多次迭代算法
      计算太阳的空间位置:$ {\boldsymbol{S}} = \left( {{h_{\rm{s}}},{\alpha _{\rm{s}}}} \right) $
      $ k = {\text{0}} $
        选取初始值 $ {{\boldsymbol{S}}_{\text{0}}} $
        选择迭代终止条件 $ \varepsilon $>0,且为一个很小的常数
        确定最大迭代次数
      计算雅可比矩阵:
      使用公式(11)计算雅克比矩阵 $ {\boldsymbol{J}}\left( {{{\boldsymbol{S}}_k}} \right) $
      $ \Delta \left( {{{\boldsymbol{S}}_k}} \right) $代入式(9)中的雅克比矩阵$ {\boldsymbol{J}}\left( {{{\boldsymbol{S}}_k}} \right) $
      $ {{\boldsymbol{g}}_k} = {\boldsymbol{J}}\left( {{{\boldsymbol{S}}_k}} \right){\boldsymbol{F}}\left( {{{\boldsymbol{S}}_k}} \right),{{\boldsymbol{S}}_{k + {\text{1}}}} = {{\boldsymbol{S}}_k} + \Delta {{\boldsymbol{S}}_k} $
      如果 $ \left\| {{{\boldsymbol{g}}_k}} \right\| \lt \varepsilon $,或者 $ k \gt n $,迭代停止
      输出 $ {{\boldsymbol{S}}_k} $
      结束
      通过式(10)计算 $ {{\boldsymbol{S}}_{k + {\text{1}}}} $
      迭代继续
      如果 $ \left\| {{{\boldsymbol{g}}_k}} \right\| \geqslant \varepsilon $,或者 $ k \leqslant n $
      $ k = k + {\text{1}} $
      计算雅克比矩阵
      ...
      直到 $ \left\| {{{\boldsymbol{g}}_k}} \right\| \lt \varepsilon $$ k \gt n $,然后计算 $ {{\boldsymbol{S}}_k} $
      结束
      计算 $ {h_{\rm{s}}} $$ {\alpha _{\rm{s}}} $
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    Jiang-tao YANG, Ming-kai WANG, Si-tuo LIU, Lei LIANG, Zhi LIU, Yue GUO. Detection method of solar position using a biomimetic polarized light compass[J]. Chinese Optics, 2024, 17(3): 548

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    Paper Information

    Category: Original Article

    Received: Dec. 22, 2023

    Accepted: Feb. 20, 2024

    Published Online: Jul. 31, 2024

    The Author Email:

    DOI:10.37188/CO.2023-0192

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