S12?S22?S32DoP?S0222???2(1)(1)???2??L0?,0?LA?L45?,0?LA????????00i00i????Gi?Ri????optics???d????Gi?Ri????optics???d??2222????4F1?M4F1?M?1???1??optics?optics?????2????(1)????2??L0?45?,??L0?Ai??2????2?2?LA????0i???GR?????Gi?Ri??????d??Di?Vmin?optics???d?i?i22optics???22?????4F?1?Moptics?4F?1?Moptics???1??1??????
而入射光的实际偏振度为： S12?S22?S32DoP?S02?L?0?,0??L???L?45?,0??L?(1)2(1)00002?2?(1)???? ??L0?45?,??L0?2????L024.2 成像系统MTF对偏振测量的影响
入射光偏振器件成像系统输出图像
① 入射光：辐射亮度为L0，偏振态用Stokes向量可表示为L(L0,L1,L2,L3)。
② 偏振器件：入射光通过偏振器件后，其Stokes向量可表示为L(1)(L0(1),L1(1),L2(1),L3(1)) L(1)(L0(1),L1(1),L2(1),L3(1))=M(θ,?) L(L0,L1,L2,L3) ③ 成像系统信号响应：Vi??,???Gi?Ri????1?2?L0(1)??,??Ai4F?1?Moptics?22?optics???d??Di
Gri??,???255?Vi??,???Vmin?Vmax?Vmin?2255Gi?Vmax?VminR????4F?i1?L0(1)??,??Ai2?1?Moptics255Vmin255??d??D???i2opticsVmax?VminVmax?Vmin?
④ MTF