An appropriate filter function is the key to successful wavefront retrieval for the wavefront sensor based on pupil phase diversity.
选择合适的滤波函数是瞳面相位差波前传感器成功实现的关键。
Phase diversity(PD)is a kind of wavefront sensing technique based on the measurement of two or more object images.
相位变更（PD）方法是一种基于两个或多个不同离焦面图像来恢复光瞳畸变波前相位的光学波前传感技术。
Simulation results show phase-diversity method can accurately retrieve the wavefront and defocusing of one wavelength is optimal.
模拟研究结果表明，相位差法可以较准确的恢复出波前相位，并且最优化的离焦波面差为一个波长。
Simulation results show phase-diversity method can accurately retrieve the wavefront and defocusing of one wavelength is optimal.
模拟研究结果表明，相位差法可以较准确的恢复出波前相位，并且最优化的离焦波面差为一个波长。
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