A phase hologram not only has relief modulation but also has refractory index modulation, both modulation will affect the diffraction property of the phase hologram.

位相全息图一般既有浮雕调制又有折射率调制，它们都会对衍射特性产生影响。

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In this paper I have shown that the double phase-only matched filtering can be realized by a computer generated hologram of detour phase with phase coding for two objects.

本文提出采用对二个物体进行位相编码的迂回位相计算全息图对该两物体实现二重位相匹配滤波。

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