Fang Q
Appl Opt. 1996 Dec 10;35(35):7008-12. doi: 10.1364/AO.35.007008.
In heterodyne and quasi-heterodyne holographic interferometry, the measuring accuracy is limited by speckle noise. It is important to know the relation between measurement accuracy and speckle noise in both theory and application. This problem has been discussed in the past under the assumption that the speckle noise produces only a small measuring error. However, this assumption is not reasonable in practice. The effect of speckle noise on the measurement accuracy is analyzed by the use of a general statistical method. The results obtained reveal the general relation between the measuring accuracy and system parameters, and thus constitute important guidelines to the application of these techniques.
在外差和准外差全息干涉测量术中，测量精度受散斑噪声限制。在理论和应用中了解测量精度与散斑噪声之间的关系很重要。过去在散斑噪声仅产生小测量误差的假设下讨论过这个问题。然而，该假设在实际中并不合理。利用一般统计方法分析了散斑噪声对测量精度的影响。所得结果揭示了测量精度与系统参数之间的一般关系，从而构成了这些技术应用的重要指导原则。
