本文關(guān)鍵詞： 多波形顯示區(qū) 插值濾波 數(shù)字余輝 波形強(qiáng)度 頻譜細(xì)化　出處：《電子科技大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著時代的發(fā)展,科技的進(jìn)步,越來越多的電子產(chǎn)品擁有了混合信號的特性。因此能夠更好的應(yīng)對并且能夠高效的完成復(fù)雜混合信號調(diào)試與測試的混合信號分析儀在現(xiàn)代電子領(lǐng)域測試擁有越來越重要的地位。由于混合信號分析儀需要顯示更多且更復(fù)雜的信號,混合信號分析儀波形顯示模塊的性能變得越來越重要,它的優(yōu)劣將直接影響混合信號分析儀的整體性能。本文結(jié)合教研室混合信號分析儀項目的研發(fā),圍繞其波形顯示模塊軟件的設(shè)計展開研究,對其總體方案設(shè)計、多顯示區(qū)波形顯示模式設(shè)計、波形處理和繪制進(jìn)行了重點討論。本課題研究的主要內(nèi)容為:1、多顯示區(qū)波形顯示模式設(shè)計。本文提出了一種解決混合信號分析儀中多個通道波形相互混疊的顯示區(qū)設(shè)計方案,該方案提供了4種波形顯示模式,在不同顯示模式下,不同波形可以在不同顯示區(qū)內(nèi)顯示,有效解決了多波形顯示時混疊問題。在實現(xiàn)過程中設(shè)計一種基于MFC靜態(tài)窗口分割的改進(jìn)分割方法,滿足了多顯示區(qū)波形顯示設(shè)計對顯示區(qū)布局變化的需求。為了提高程序運(yùn)行效率采用了多線程技術(shù),在提高波形顯示效率同時也達(dá)到了多個顯示區(qū)波形同步顯示的要求。2、波形處理與繪制。在模擬波形方面,本文以波形重構(gòu)理論和Matlab仿真為基礎(chǔ)設(shè)計了用于本混合信號分析儀的插值方法,同時實現(xiàn)了多種波形顯示方式,包括矢量、帶彩色灰度的無限余輝和可變余輝,在余輝模式下具有了顯示波形強(qiáng)度的能力,增強(qiáng)了顯示性能。在數(shù)字波形方面,本文利用滾動條實現(xiàn)了多通道數(shù)字波形的顯示。在頻譜波形方面,利用快速CZT算法實現(xiàn)更為精細(xì)的頻譜顯示。同時設(shè)計了一種在GDI下高速像素級繪圖方法,提高了余輝模式下波形顯示效率。結(jié)合計算機(jī)圖形學(xué)中反走樣理論有效解決了波形鋸齒問題。3、系統(tǒng)驗證。在完成了波形顯示模塊軟件設(shè)計后,本文對軟件所涉及的相關(guān)功能進(jìn)行了驗證,通過驗證所有功能達(dá)到了設(shè)計目標(biāo)。
[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.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TM935

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本文編號：1532916