混合信号分析仪波形显示模块软件设计

发布时间：2018-02-25 04:05

本文关键词： 多波形显示区插值滤波数字余辉波形强度频谱细化　出处：《电子科技大学》2014年硕士论文　论文类型：学位论文

【摘要】：随着时代的发展,科技的进步,越来越多的电子产品拥有了混合信号的特性。因此能够更好的应对并且能够高效的完成复杂混合信号调试与测试的混合信号分析仪在现代电子领域测试拥有越来越重要的地位。由于混合信号分析仪需要显示更多且更复杂的信号,混合信号分析仪波形显示模块的性能变得越来越重要,它的优劣将直接影响混合信号分析仪的整体性能。本文结合教研室混合信号分析仪项目的研发,围绕其波形显示模块软件的设计展开研究,对其总体方案设计、多显示区波形显示模式设计、波形处理和绘制进行了重点讨论。本课题研究的主要内容为:1、多显示区波形显示模式设计。本文提出了一种解决混合信号分析仪中多个通道波形相互混叠的显示区设计方案,该方案提供了4种波形显示模式,在不同显示模式下,不同波形可以在不同显示区内显示,有效解决了多波形显示时混叠问题。在实现过程中设计一种基于MFC静态窗口分割的改进分割方法,满足了多显示区波形显示设计对显示区布局变化的需求。为了提高程序运行效率采用了多线程技术,在提高波形显示效率同时也达到了多个显示区波形同步显示的要求。2、波形处理与绘制。在模拟波形方面,本文以波形重构理论和Matlab仿真为基础设计了用于本混合信号分析仪的插值方法,同时实现了多种波形显示方式,包括矢量、带彩色灰度的无限余辉和可变余辉,在余辉模式下具有了显示波形强度的能力,增强了显示性能。在数字波形方面,本文利用滚动条实现了多通道数字波形的显示。在频谱波形方面,利用快速CZT算法实现更为精细的频谱显示。同时设计了一种在GDI下高速像素级绘图方法,提高了余辉模式下波形显示效率。结合计算机图形学中反走样理论有效解决了波形锯齿问题。3、系统验证。在完成了波形显示模块软件设计后,本文对软件所涉及的相关功能进行了验证,通过验证所有功能达到了设计目标。
[Abstract]:With the development of the times and the progress of science and technology, More and more electronic products have the characteristics of mixed signal. Therefore, the mixed signal analyzer, which can better deal with and efficiently complete the debugging and testing of complex mixed signals, has become more and more popular in the modern electronic field. Because the mixed signal analyzer needs to display more and more complex signals, The performance of the waveform display module of the mixed signal analyzer becomes more and more important, and its merits and demerits will directly affect the overall performance of the mixed signal analyzer. According to the design of the waveform display module software, the overall scheme design, multi-display area waveform display mode design, The waveform processing and drawing are discussed in detail. The main content of this research is: 1, the design of multi-display area waveform display mode. In this paper, a display area design scheme is proposed to solve the overlapping of multi-channel waveforms in mixed signal analyzer. The scheme provides four waveform display modes. In different display modes, different waveforms can be displayed in different display areas. An improved segmentation method based on MFC static window segmentation is designed. In order to improve the efficiency of the program, the multi-thread technology is used to improve the efficiency of the program, which meets the demand of changing the layout of the display area in the design of multi-display waveform display. In order to improve the efficiency of waveform display, it also meets the requirement of synchronous display of waveforms in multiple display areas, waveform processing and drawing. In the aspect of analog waveforms, Based on the theory of waveform reconstruction and Matlab simulation, the interpolation method for this mixed signal analyzer is designed in this paper. At the same time, a variety of waveform display methods are realized, including vector, infinite afterglow with color gray and variable afterglow. In the afterglow mode, it has the ability to display the intensity of the waveform and enhance the performance of the display. In the aspect of digital waveform, this paper uses the rolling bar to realize the display of the multi-channel digital waveform. The fast CZT algorithm is used to realize more precise spectrum display. A high speed pixel level drawing method based on GDI is also designed. The waveform display efficiency in afterglow mode is improved. The waveform sawtooth problem. 3 is effectively solved by the anti-aliasing theory in computer graphics. The software design of waveform display module is completed. This paper verifies the related functions of the software, and achieves the design goal by verifying all the functions.
【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

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