数字示波器硬件实时波形录制和分析功能设计
发布时间：2018-09-07 20:45
【摘要】：随着电子技术的快速发展,电子工程师对测试测量仪器的要求越来越高,对数字示波器而言,不仅在带宽、采样率、存储深度这三大指标上有了更高的要求,同时,在示波器各项功能的发展上也要求更加全面,更多的便捷功能可以在很大程度上提高测试的效率和精度。本文对数字存储示波器的硬件波形实时录制功能和分析功能的设计与实现进行了详细的阐述,讨论了本系统中基于DDR3的大容量存储技术和分段存储技术的研究与实现,并在此基础上实现了硬件波形实时录制的功能;同时完成了硬件极限模板测试技术的总体方案设计,并阐述了其具体的实现过程;且完成了以统计直方图的方法对波形进行抖动分析的方案研究。本文完成的工作如下:1、高速大容量存储技术的研究。本文介绍了DDR3的工作机制以及其在系统中深存储功能的具体实现,实现了存储深度可变,且最大存储深度能达到800M的大容量存储功能。2、硬件波形实时录制功能的设计。在深存储技术以及分段存储技术的基础上,实现了硬件波形实时录制功能的设计,达到存取速度快、录制帧数多、波形实时录制的设计目标。3、极限模板测试技术的研究。本课题以硬件的设计思想实现模板测试技术,能够通过创建波形模板的方法对异常波形进行检测。这种测试方法能很快地从海量波形中检测出异常的波形,大大提高了测试效率。4、波形抖动分析的研究。首先介绍了三维波形映射的基本原理,再根据三维数据库与LCD波形显示区的地址映射关系,完成了直方统计图总体方案的设计。从而实现通过直方图统计的方法分析波形的抖动特性。
[Abstract]:With the rapid development of electronic technology, the requirements of electronic engineers for testing and measuring instruments are becoming higher and higher. For digital oscilloscopes, not only the bandwidth, sampling rate and storage depth have higher requirements, but also, In the development of oscilloscope functions, more comprehensive, more convenient functions can greatly improve the efficiency and accuracy of the test. In this paper, the design and implementation of hardware waveform real-time recording and analysis function of digital storage oscilloscope are described in detail, and the research and implementation of mass storage technology and segmented storage technology based on DDR3 in this system are discussed. On this basis, the function of real-time recording of hardware waveform is realized, and the overall scheme design of hardware limit template testing technology is completed, and the concrete realization process is described. The scheme of waveform jitter analysis by statistical histogram is completed. The work of this paper is as follows: 1, the research of high-speed and large-capacity storage technology. This paper introduces the working mechanism of DDR3 and the realization of its deep storage function in the system. The function of variable storage depth is realized, and the maximum storage depth can reach 800m. The design of real-time recording function of hardware waveform is also presented in this paper. On the basis of deep storage technology and segmented storage technology, the design of hardware waveform real-time recording function is realized, which achieves the design goal of fast access speed, more recorded frames, real-time waveform recording, and limit template testing technology. In this paper, the template testing technology is realized by the hardware design idea, and the abnormal waveform can be detected by creating the waveform template. This method can quickly detect abnormal waveforms from massive waveforms and greatly improve the efficiency of testing .4. the research of waveform jitter analysis. Firstly, the basic principle of 3D waveform mapping is introduced, and then according to the address mapping relationship between 3D database and LCD waveform display area, the overall scheme of straight square statistical diagram is designed. Thus, the jitter characteristics of the waveform can be analyzed by histogram statistics.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM935.37
本文编号：2229371
[Abstract]:With the rapid development of electronic technology, the requirements of electronic engineers for testing and measuring instruments are becoming higher and higher. For digital oscilloscopes, not only the bandwidth, sampling rate and storage depth have higher requirements, but also, In the development of oscilloscope functions, more comprehensive, more convenient functions can greatly improve the efficiency and accuracy of the test. In this paper, the design and implementation of hardware waveform real-time recording and analysis function of digital storage oscilloscope are described in detail, and the research and implementation of mass storage technology and segmented storage technology based on DDR3 in this system are discussed. On this basis, the function of real-time recording of hardware waveform is realized, and the overall scheme design of hardware limit template testing technology is completed, and the concrete realization process is described. The scheme of waveform jitter analysis by statistical histogram is completed. The work of this paper is as follows: 1, the research of high-speed and large-capacity storage technology. This paper introduces the working mechanism of DDR3 and the realization of its deep storage function in the system. The function of variable storage depth is realized, and the maximum storage depth can reach 800m. The design of real-time recording function of hardware waveform is also presented in this paper. On the basis of deep storage technology and segmented storage technology, the design of hardware waveform real-time recording function is realized, which achieves the design goal of fast access speed, more recorded frames, real-time waveform recording, and limit template testing technology. In this paper, the template testing technology is realized by the hardware design idea, and the abnormal waveform can be detected by creating the waveform template. This method can quickly detect abnormal waveforms from massive waveforms and greatly improve the efficiency of testing .4. the research of waveform jitter analysis. Firstly, the basic principle of 3D waveform mapping is introduced, and then according to the address mapping relationship between 3D database and LCD waveform display area, the overall scheme of straight square statistical diagram is designed. Thus, the jitter characteristics of the waveform can be analyzed by histogram statistics.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM935.37
【参考文献】
相关期刊论文 前1条
1 曲文婷;;利用DS6000波形录制功能加速调试[J];电子产品世界;2011年11期
，本文编号：2229371
本文链接：https://www.wllwen.com/kejilunwen/dianlilw/2229371.html
