本文選題：虛擬儀器 + LabVIEW　； 參考：《長春理工大學》2014年碩士論文

【摘要】：頻譜分析研究現(xiàn)在會應用到很多的科研技術范圍中,比如無線電技術里面的電子通訊系統(tǒng)、地震檢測應用系統(tǒng)、地質勘測應用技術、電子信息應用系統(tǒng)、搜尋救援應用系統(tǒng)、導航應用技術、安檢應用系統(tǒng)、雷達檢測應用系統(tǒng)等,不但如此,由于像光波、沖擊、聲響還有很多非電量科學應用技術都是能夠利用能量轉換器件轉為電流、電壓值方面所產生的改變從而更有利、更直接地研究測量分析,因此頻譜分析在噪聲、生物、發(fā)動機、各種振動、醫(yī)學等方面也同樣有著至關重要的地位。 本文是基于服務于PXI系統(tǒng)的3U四核嵌入式控制器—PXI8110嵌入式控制器采集卡為平臺,采用LabVIEW圖形化編程語言為開發(fā)研究測量工具,結合信號處理的理論思想對信號進行時域方面,頻域方面的研究測試分析處理。通過用LabVIEW設計編程一個虛擬的信號發(fā)生器獲得信號源。在信號頻域分析模塊,主要研究完成了信號的幅相譜分析、功率譜分析、諧波分析、倒頻譜分析、聯(lián)合時頻分析等,并且研究分析了部分信號時域分析方面的具體功能從而更進一步地掌握信號的結構組成和特性參數。人機交互界面的具體研究分析設計可使用戶進行簡單容易的參數選取,信號分析,輸出結果等方面的功能操作。
[Abstract]:Spectrum analysis and research will now be applied to many scientific research technologies, such as electronic communication systems in radio technology, seismic detection applications, geological survey applications, electronic information applications, search and rescue applications. Navigation application technology, security application system, radar detection application system, and so on, not only so, because of light wave, shock, sound, and many other scientific applications of non-electric energy, they can use energy conversion devices to convert electric current. The changes in voltage are more beneficial and more direct in the study of measurement and analysis, so spectrum analysis also plays an important role in noise, biology, engine, vibration, medicine and so on. This paper is based on the 3U four-core embedded controller PXI8110 embedded controller data acquisition card which serves the PXI system, adopts the LabVIEW graphic programming language as the development and measurement tool, and carries on the signal time domain aspect with the signal processing theory thought. Frequency domain research, test analysis and processing. The signal source is obtained by programming a virtual signal generator with LabVIEW. In the signal frequency domain analysis module, the signal amplitude and phase spectrum analysis, power spectrum analysis, harmonic analysis, cepstrum analysis, joint time-frequency analysis, etc. The specific functions of time domain analysis of some signals are studied and the structure and characteristic parameters of the signals are further grasped. The concrete research and analysis design of the man-machine interface can make the user carry on the simple and easy parameter selection, the signal analysis, the output result and so on the function operation.
【學位授予單位】：長春理工大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TM935.21

【引證文獻】

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本文編號：1884190