【摘要】 从部分偏振散斑光场的统计理论出发，对像斑强度中心漂移进行了计算，导出了测量的基本不确定度的表达式，指出了在部分偏振光照明下有利于提高测量精度。更多还原

【Abstract】 The statistic theory of partial polarization speckle field is employed to analyze the centroid fluctuation of irradiance distribution of the spot image. The analytic expression of fundamental uncertainty of the measurement is derived. It is shown that partial polarization projection is advantageous to the improvement of measurement accuracy.更多还原