《高速波形分析仪硬件系统设计》由会员分享，可在线阅读，更多相关《高速波形分析仪硬件系统设计（60页珍藏版）》请在金锄头文库上搜索。
1、分类号UDC 注 1密级学位论文高速波形分析仪硬件系统设计（题名和副题名）曾 浩（作者姓名）指导教师姓名王厚军电子科技大学教授成都（职务、职称、学位、单位名称及地址）申请学位级别硕士专业名称测试计量技术及仪器论文提交日期2005.5论文答辩日期2005.5学位授予单位和日期答辩委员会主席评阅人电子科技大学2005 年注 1 注明国际十进分类法 UDC的类号月日摘要波形分析仪是随着数字信号处理技术的发展而发展起来的一种集高速数据采集、存储、显示、分析和处理功能于一体的新型电子测量设备。本文结合电子科技大学承担的军用型号项目“VXI 波形分析仪”，围绕“波形分析仪硬件系统设计”这一主题展开研究。文
2、章详细阐述了信号调理和数据采集模块、DSP 控制和信号处理模块、VXI 接口模块三部分硬件电路的具体设计与实现。首先概述了波形分析仪在现代测试中的特点和国内外的发展情况，并说明了本文所涉及的研究工作范围。其次，介绍了波形分析仪硬件系统总体设计方案及其基本工作流程。然后详细阐述了信号调理电路、触发电路、通道控制电路、多 A/D 并行交替采样技术、高速数据流分相存储电路、系统控制逻辑电路的原理及其具体设计。接着较详细地介绍了 DSP 控制和数据流切换电路的设计，并阐明了系统存储空间的分配情况。在 VXI 接口模块一章中，简要介绍了 VXI 接口模块以及大容量数据传送的实现方法。最后，列举了在调试中
3、曾出现过的一些主要问题，分析了问题产生的原因，提出了可行的解决措施以及对主要性能指标在进行整机测试时的测试方法。波形分析仪的设计是数据采集系统中利用现有的低速 A/D 实现高速数据采集、运用低速存储器实现高速数据流存储的典型应用。关键词：波形分析仪，多 A/D 并行采样，数据分相存储，信号调理，可编程逻辑器件IAbstractWaveform Analyzer grows up with the development of DSP, which is a newkind of Electronic Testing Equipment with characteristics of high-
4、speed dataacquisition, large-scale data storage, waveform display and data analysis andprocessing functions.The work of this dissertation comes from the project VXI Waveform Analyzer,which is taken on by the University of Electronic Science and Technology ofChina. The dissertation focuses on the sub
5、ject of the system hardware design ofWaveform Analyzer. The design and realization of the signal conditioning and dataacquisition module, DSP control and signal processing module and the VXI bussinterface module of the system hardware is discussed in detail in the dissertation.First of all, this dis
6、sertation introduces the waveform analyzers applicationsin modern electronic measurement and its development in the world. The mainresearch topics are also introduced in this chapter.The next chapter of the dissertation introduces the total hardware structure ofWaveform Analyzer and its basic princi
7、ple.In the third chapter, the principle and design of the signal conditioning circuit,trigger circuit, analog channel conctrol circuit, multiple A/D time-interleavedsampling technology, large-scale high-speed storage circuit of the converted datawith different phases control circuit are discussed in
8、 detail.In the forth chapter, the design of the DSP control circuit and the databus-mastering circuit are discribled, and it also illustrates the distribution of thesystem memory space.In the fifith chapter, the module of the VXI buss interface and the realizationof the data transmition are introduc
9、ed briefly.Finally, the detailed debugging process of circuit is brought forward. Thensome main problems and their causes during the debugging are listed and analyzed.And some feasible solutions are offered as well. The performance specificationtesting methods are also given in the last chapter.To r
10、ealize the ultra high-speed Waveform Analyzer with existing low-speedA/D converters and high-speed data storage with low-speed memory is a typicalapplication, which is implemented in the design of the Waveform Analyzer.IIKeywords：Waveform Analyzer,multiple A/D time-interleaved sample,data storaged w
11、ith different phases,programmable logic deviceIIIsignal conditioning,目录第一章1.11.21.3第二章2.12.2第三章3.1引言 . 1波形分析仪的特点及研制价值 . 1波形分析仪国内外发展状况 . 2设计目标及课题任务 . 2波形分析仪硬件系统总体设计. 5波形分析仪硬件系统总体设计方案 . 5波形分析仪硬件系统总体工作流程 . 9信号调理及数据采集模块电路的设计 . 11信号调理电路 . 113.1.13.1.23.1.33.1.4衰减网络 . 12阻抗变换和放大电路. 13细衰减电路 . 13驱动级电路 . 143.23.3触发通道 .
