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Research on two-port network of wavelet transform processor using surface acoustic wavelet devices and its application

机译：用曲面声学小波装置及其应用研究小波变换处理器的双端口网络

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The goal of this research is to study two-port network of wavelet transform processor (WTP) using surface acoustic wave (SAW) devices and its application. The motive was prompted by the inconvenience of the long research and design cycle and the huge research funding involved with traditional method in this field, which were caused by the lack of the simulation and emulation method of WTP using SAW devices. For this reason, we introduce the two-port network analysis tool, which has been widely used in the design and analysis of SAW devices with uniform interdigital transducers (IDTs). Because the admittance parameters calculation formula of the two-port network can only be used for the SAW devices with uniform IDTs, this analysis tool cannot be directly applied into the design and analysis of the processor using SAW devices, whose input interdigital transducer (IDT) is apodized weighting. Therefore, in this paper, we propose the channel segmentation method, which can convert the WTP using SAW devices into parallel channels, and also provide with the calculation formula of the number of channels, the number of finger pairs and the static capacitance of an interdigital period in each parallel channel firstly. From the parameters given above, we can calculate the admittance parameters of the two port network for each channel, so that we can obtain the admittance parameter of the two-port network of the WTP using SAW devices on the basis of the simplification rule of parallel two-port network. Through this analysis tool, not only can we get the impulse response function of the WTP using SAW devices but we can also get the matching circuit of it. Large numbers of studies show that the parameters of the two-port network obtained by this paper are consistent with those measured by network analyzer E5061A, and the impulse response function obtained by the two-port network analysis tool is also consistent with that measured by network analyzer E5061A, which can meet the accuracy requirements of the analysis of the WTP using SAW devices. Therefore the two-port network analysis tool discussed in this paper has comparatively higher theoretical and practical value. (C) 2017 Elsevier B.V. All rights reserved.
机译：本研究的目标是使用曲面声波（SAW）器件及其应用研究双端口网络的小波变换处理器（WTP）。长期研究和设计周期的不便提出了该动机，以及该领域中传统方法所涉及的巨额研究资金，这是由于使用SAW器件缺乏WTP的模拟和仿真方法引起的。因此，我们介绍了双端口网络分析工具，这些工具已被广泛用于具有均匀叉指传感器（IDTS）的SAW器件的设计和分析。因为双端口网络的进入参数计算公式只能用于具有均匀IDT的SAW器件，所以不能使用SAW器件直接应用于使用SAW器件的处理器的设计和分析，其输入争端传感器（IDT）是减少的加权。因此，在本文中，我们提出了一种通道分割方法，它可以使用SAW器件将WTP转换为并联通道，并且还提供通道数量的计算公式，手指对的数量和争端的静态电容首先在每个平行通道中的时期。根据上面给出的参数，我们可以计算每个通道的两个端口网络的导纳参数，以便我们在基于并行简化规则的基础上使用SAW器件获得WTP的双端口网络的导纳参数双端口网络。通过此分析工具，我们不仅可以使用SAW设备获得WTP的脉冲响应功能，但我们也可以获得它的匹配电路。大量的研究表明，通过本文获得的双端口网络的参数与网络分析器E5061A测量的那些一致，并且通过双端口网络分析工具获得的脉冲响应函数也与网络测量的脉冲响应函数分析仪E5061A，可以满足使用SAW器件对WTP分析的准确性要求。因此，本文中讨论的双端口网络分析工具相对较高的理论和实用价值。 （c）2017 Elsevier B.v.保留所有权利。

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