Shofner F M, Webb R O
Appl Opt. 1972 Sep 1;11(9):1991-7. doi: 10.1364/AO.11.001991.
Experimental and theoretical results describing matched filter selectivity for a particular class of signal as obtained, for example, in holographic velocimetry are reviewed. An experiment showing noise rejection is described for filters having both low and high ratios of signal to reference beam. The data presented are for transmissive signals. Best results are obtained using high ratio filters and high contrast signals. Extension to signals derived from diffusely reflecting material objects is treated. By utilizing proper optics, the scale change effects of matched filtering are shown to give a quantitative measure of deformation of the strained object. Dependence of sensitivity upon signal characteristics is discussed.
回顾了描述特定类信号匹配滤波器选择性的实验和理论结果，例如在全息测速中获得的结果。描述了一个针对信号与参考光束比率低和高的滤波器的噪声抑制实验。给出的数据是关于透射信号的。使用高比率滤波器和高对比度信号可获得最佳结果。还探讨了将其扩展到源自漫反射材料物体的信号。通过使用适当的光学器件，匹配滤波的尺度变化效应被证明可给出应变物体变形的定量测量。讨论了灵敏度对信号特性的依赖性。
