针对已有仿生偏振光导航方法中,根据局部天空区域的偏振信息获取导航信息存在的缺陷,提出一种基于大气偏振模式分布规律的导航方向角计算方法.该方法利用大气偏振模式的对称性定义了偏振响应和函数,根据大气偏振模式有限采样点的偏振信息,拟合估计出太阳子午线位置,并最终获取导航方向角信息,最后通过多组观测时刻、多组观测地点的仿真实验,验证了基于大气偏振模式分布规律的导航方向角计算方法的有效性.%For the disadvantages of the existing method of bionic polarization navigation, that calculates the navigation direction angle based on the polarization information of the local sky region, a method is proposed to calculate the navigation direction angle based on the symmetrical distribution of the atmospheric polarization mode. The function of polarization response sum is defined according to the symmetry of the atmosphere polarization mode, a finite number of sampling points of the atmospheric polarization are acquired to calculate the position of the solar meridian and to determine the navigation direction angle. The corresponding validation experiment is also given to test the method of navigation direction angle calculation using the symmetry of the atmospheric polarization distribution mode.
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