每个晶体结构由相间的二氧化硅层和高分子聚合材料层组成，相同材料层之间的间距与声子的波长相匹配。
Each crystal structure consists of alternating layers of silicon dioxide and a polymer material, so that the spacing between similar layers matches the wavelength of phonons.
分析现有模板匹配算法存在问题的基础上，提出一种基于可变形模板的声图像识别新方法。
On the basis of deformable template matching, a new approach based on the deformable template is presented.
介绍了采用级联技术制作的1023位声表面波匹配滤波器的工作原理、设计方法和实验结果。
This paper describes the operating principle, design method and experimental results of 1023 bits SAW matched filter using cascade technology.
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