为了准确测量目标的全偏振参量，采用数值模拟计算系统测量矩阵的范数条件数的方法，对系统微小扰动引起的全偏振态参量的测量影响进行了理论分析和实验验证。结果表明，当λ/4波片快轴方向为特定组合角度(13°，50°，128°，164°)时，测量系统最优化和效率化。

In order to measure the complete Stokes parameters of the target accurately, the effect of systematic disturbance on the measurement accuracy was analyzed based on the numerical simulation method of 2-norm condition number of measurement matrices and verified in experiments. Simulation study shows that the measuring system can run optimally and effectively when the angles of the fast axis of the λ/4 wave-plate are appropriate combination angles (i.e., 13°, 50°, 128°, 164°).