My association with the theory of controls in continuous time started during my studies at the Indian Institute of Technology, Kharagpur, India, in 1974 as an undergraduate student in the Controls and Power program. The initial introduction by Professors Kesavamurthy, Y. P. Singh, and Rajagopalan laid the foundation for a good basic understanding of the subject matter. This pursuit and further advanced study in the field of digital controls continued during my days as a graduate student in the Electrical and Systems Engineering Department at the University of Connecticut in Storrs, from 1983 to 1988.
標(biāo)簽: Applications Digital Control
上傳時間: 2020-06-10
上傳用戶:shancjb
Artificial Intelligence (AI) has undoubtedly been one of the most important buz- zwords over the past years. The goal in AI is to design algorithms that transform com- puters into “intelligent” agents. By intelligence here we do not necessarily mean an extraordinary level of smartness shown by superhuman; it rather often involves very basic problems that humans solve very frequently in their day-to-day life. This can be as simple as recognizing faces in an image, driving a car, playing a board game, or reading (and understanding) an article in a newspaper. The intelligent behaviour ex- hibited by humans when “reading” is one of the main goals for a subfield of AI called Natural Language Processing (NLP). Natural language 1 is one of the most complex tools used by humans for a wide range of reasons, for instance to communicate with others, to express thoughts, feelings and ideas, to ask questions, or to give instruc- tions. Therefore, it is crucial for computers to possess the ability to use the same tool in order to effectively interact with humans.
標(biāo)簽: Embeddings Processing Language Natural in
上傳時間: 2020-06-10
上傳用戶:shancjb
科學(xué)家與工程師數(shù)字信號處理指南The Scientist and Engineer Guide to Digital Signal Processing.pdf
標(biāo)簽: 數(shù)字信號處理
上傳時間: 2021-11-11
上傳用戶:
基于FPGA設(shè)計的相關(guān)論文資料大全 84篇用FPGA實現(xiàn)FFT的研究 劉朝暉 韓月秋 摘 要 目的 針對高速數(shù)字信號處理的要求,給出了用現(xiàn)場可編程門陣列(FPGA)實現(xiàn)的 快速傅里葉變換(FFT)方案.方法 算法為按時間抽取的基4算法,采用遞歸結(jié)構(gòu)的塊浮點運 算方案,蝶算過程只擴展兩個符號位以適應(yīng)雷達(dá)信號處理的特點,乘法器由陣列乘法器實 現(xiàn).結(jié)果 采用流水方式保證系統(tǒng)的速度,使取數(shù)據(jù)、計算旋轉(zhuǎn)因子、復(fù)乘、DFT等操作協(xié) 調(diào)一致,在計算、通信和存儲間取得平衡,避免了瓶頸的出現(xiàn).結(jié)論 實驗表明,用FPGA 實現(xiàn)高速數(shù)字信號處理的算法是一個可行的方案. 關(guān)鍵詞 離散傅里葉變換; 快速傅里葉變換; 塊浮點運算; 可編程門陣列 分類號 TP39; TN957.511 Implementation of FFT with FPGA Technology Liu Zhaohui Han Yueqiu (Department of Electronics Engineering, Beijing Institute of Technology, Beijing 100081) Abstract Aim To propose a scheme for implementing FFT with FPGA in accor-dance with the requirement for high speed digital signal processing. Methods The structure of FPGA and requirement of system were considered in the experiment, radix-4 algorithm of DIT and recursive structure were adopted. The group float point arithmetic operation was used in the butterfly and the array multiplier was used to realize multiplication. Results The pipeline pattern was used to ensure the system speed, it made fetching data, calculating twiddle factor, complex multiplication and D
標(biāo)簽: fpga
上傳時間: 2022-03-23
上傳用戶:
數(shù)字示波器功能強大,使用方便,但是價格相對昂貴。本文以Ti的MSP430F5529為主控器,以Altera公司的EP2C5T144C8 FPGA器件為邏輯控制部件設(shè)計數(shù)字示波器。模擬信號經(jīng)程控放大、整形電路后形成方波信號送至FPGA測頻,根據(jù)頻率值選擇采用片上及片外高速AD分段采樣。FPGA控制片外AD采樣并將數(shù)據(jù)輸入到FIFO模塊中緩存,由單片機進(jìn)行頻譜分析。測試表明:簡易示波器可以實現(xiàn)自動選檔、多采樣率采樣、高精度測頻及頻譜分析等功能。Digital oscilloscope is powerful and easy to use, but also expensive. The research group designed a low-cost digital oscilloscope, the chip of MSP430F5529 of TI is chosen as the main controller and the device of EP2C5T144C8 of Altera company is used as the logic control unit. Analog signal enter the programmable amplifier circuit, shaping circuit and other pre-processing circuit. The shaped rectangular wave signal is sent to FPGA for measure the frequency. According to the frequency value to select AD on-chip or off-chip high-speed AD for sampling. FPGA controls the off-chip AD sampling and buffers AD data by FIFO module. The single chip microcomputer receives the data, and do FFT for spectrum analysis. The test shows that the simple oscilloscope can realize automatic gain selection, sampling at different sampling rates, high precision frequency measurement and spectrum analysis.
標(biāo)簽: msp430 單片機 fpga 數(shù)字示波器
上傳時間: 2022-03-27
上傳用戶:
目的:自主研制一款超聲手術(shù)刀電源控制系統(tǒng),以減少能量的消耗,維持手術(shù)刀的正常溫度。方法:對超聲換能器在諧振附近的等效電路建立模型,并設(shè)計基于數(shù)字信號處理(DSP)的超聲手術(shù)刀的硬件控制系統(tǒng)。結(jié)果:經(jīng)對電源控制系統(tǒng)的電路和工作性能測試,生成的電流和電壓的有效值等參數(shù),能夠及時調(diào)整電源的頻率,并達(dá)到預(yù)期的功能指標(biāo),使超聲手術(shù)刀工作在諧振狀態(tài)。結(jié)論:以DSP為核心設(shè)計的超聲手術(shù)刀電源控制系統(tǒng),測試指標(biāo)均能夠達(dá)到預(yù)期的要求,能夠使系統(tǒng)在諧振狀態(tài)下工作。Objective: To independently develop a power control system of ultrasonic scalpel so as to reduce the energy consumption and maintain the normal temperature of ultrasonic scalpel. Methods: In this paper, the model of equivalent circuit of ultrasonic transducer nearby syntony was built up, and the hardware control system of ultrasonic scalpel based on digital signal processing(DSP) was designed. Results: Through testing the circuit and work performance of power control system, the series of parameters such as effective value and so on which were produced by this system could adjust frequency of power source in time and attain anticipative functional indicator, and it took the ultrasonic scalpel to work in syntonic situation. Conclusion: The tested indicators of power control system of ultrasonic scalpel based on the kernel design of DSP can attain anticipative requirement, and can take this system to work in syntonic situation.
標(biāo)簽: 數(shù)字信號處理 超聲手術(shù)刀 電源控制
上傳時間: 2022-04-03
上傳用戶:bluedrops
Digital Signal Processing in Python基于python的數(shù)字信號處理原版,對于dsp算法的快速原型驗證非常有幫助。
上傳時間: 2022-04-28
上傳用戶:
Allen的Think系列,講述數(shù)字信號處理器(DSP)基本概念,用Python語言描述這些概念。可實際運行代碼,更深的理解DSP。
上傳時間: 2022-05-14
上傳用戶:
萊昂斯《數(shù)字信號處理(第三版)(英文版)》在Richard G. Lyons所著Understanding Digital Signal Processing, Second Edition的基礎(chǔ)上進(jìn)行了改編,針對通信類學(xué)校本科教學(xué)大綱,刪除了教學(xué)中一般不涉及的內(nèi)容,調(diào)整了章節(jié)順序,并增加了z反變換、濾波器結(jié)構(gòu)、線性相位FIR濾波器和其結(jié)構(gòu)、模擬濾波器簡介的內(nèi)容,使教內(nèi)容材更加完整。全書在概述了離散序列和系統(tǒng)的定義和實例之后,詳細(xì)討論了離散系統(tǒng)的特性、信號的離散化和離散卷積、z變換、離散時間傅里葉變換和離散傅里葉變換、快速傅里葉變換、數(shù)字濾波器結(jié)構(gòu)、以及有限和無限脈沖響應(yīng)數(shù)字濾波器的設(shè)計等基本概念和基本理論。書中涉及的數(shù)學(xué)知識以簡明形式給出,深入淺出,易于理解。本書每章都增加了例題、習(xí)題和MATLAB例題,以便加強對每章內(nèi)容的理解和掌握。 書中通過具有啟發(fā)性的解釋和精心挑選的例子,采用易于理解的數(shù)學(xué)表示方法,循序漸進(jìn)地對數(shù)字信號處理技術(shù)加以說明和解釋,幫助讀者從整體掌握DSP基礎(chǔ),并逐步掌握較高層次的DSP概念和應(yīng)用。本書特點:包含大量實際直觀的例子;強調(diào)實際的、日常的DSP應(yīng)用和解決方案·提供了全新的正交信號處理內(nèi)容,包括易于理解的三維空間圖;包括即使是經(jīng)驗豐富的專業(yè)人士也可能忽略的技術(shù)方法;涵蓋頻率采樣、內(nèi)插式FER、CIC等重要濾波器;提供流行的數(shù)字信號處理技巧。
標(biāo)簽: 數(shù)字信號處理
上傳時間: 2022-05-22
上傳用戶:
原版英文PDF電子書免費下載:Digital Integrated Circuit Design From VLSI Architectures to CMOS Fabrication,891頁 本書從架構(gòu)和算法講起,介紹了功能驗證、vhdl建模、同步電路設(shè)計、異步數(shù)據(jù)獲取、能耗與散熱、信號完整性、物理設(shè)計、設(shè)計驗證等必備技術(shù),還講解了vlsi經(jīng)濟運作與項目管理,并簡單闡釋了cmos技術(shù)的基礎(chǔ)知識,全面涵蓋了數(shù)字集成電路的整個設(shè)計開發(fā)過程。 本書既可以作為高等院校微電子、電子技術(shù)等相關(guān)專業(yè)高年級師生和研究生的參考教材,也可供半導(dǎo)體行業(yè)工程師參考。 現(xiàn)代電子系統(tǒng)日益復(fù)雜,隨著半導(dǎo)體工藝水平的提高,單芯片的集成度和功能得以不斷增強,其設(shè)計復(fù)雜度和各種風(fēng)險也隨之變大,甚至影響到投資者對研發(fā)新的更復(fù)雜系統(tǒng)芯片的信心。但是,為了有效降低便攜式移動系統(tǒng)的產(chǎn)品單位成本和能量消耗,同時為了在產(chǎn)品獨特性方面有競爭力,越來越多的電子產(chǎn)品仍然必須采用專用芯片解決方案。因此,深入了解數(shù)字集成電路設(shè)計的基本方法和關(guān)鍵問題,并明確開發(fā)過程的各個實踐環(huán)節(jié)存在的風(fēng)險,就變得十分必要。 本書是一本將超大規(guī)模數(shù)字電路基本概念原理與工程實踐管理相結(jié)合的綜合性教材。作者根據(jù)自己多年的教學(xué)和工程實踐經(jīng)驗,從工程實踐的關(guān)鍵問題出發(fā),對超大規(guī)模數(shù)字電路的全部講授內(nèi)容進(jìn)行了一次全新的梳理,形成了清晰的解決思路。在數(shù)字集成電路設(shè)計的各個環(huán)節(jié),作者重點闡述了設(shè)計研制中必須考慮的關(guān)鍵因素,在豐富經(jīng)驗基礎(chǔ)上對設(shè)計中常常出現(xiàn)的問題進(jìn)行了詳盡的討論,可以幫助研究生和資深工程師完善自身的設(shè)計經(jīng)驗和能力,也可以幫助項目管理者明確各個環(huán)節(jié)的工作重點,規(guī)避研發(fā)環(huán)節(jié)的風(fēng)險。 本書和其他數(shù)字集成電路教科書相比,有兩個突出的特點。第一是自頂向下的組織方式,從算法的架構(gòu)設(shè)計開始,討論了同步設(shè)計的各種時鐘技術(shù)、設(shè)計驗證、散熱和封裝問題,還討論了VLSI(超大規(guī)模集成電路)經(jīng)濟學(xué)與項目管理。讀者可以根據(jù)自身需要直接閱讀感興趣的章節(jié),而不需要很多半導(dǎo)體物理與器件方面的知識。第二是實用性。本書用了相當(dāng)多的篇幅討論了工程實踐的問題,例如給出了一個很好的設(shè)計數(shù)據(jù)組織方法,還有很多檢查列表與提醒。 在目前的集成電路項目里,大量使用了重用的虛擬元件,通常有十幾個到幾十個時鐘,驗證工作量也要占到整個項目周期和投資的50%~70%,關(guān)于虛擬元件、時鐘方案、VLSI經(jīng)濟學(xué)、項目管理、功能驗證、設(shè)計驗證等內(nèi)容的討論都可以直接作為實際項目實踐的參考。總之,本書的內(nèi)容相當(dāng)全面并有一定深度,基本涵蓋了數(shù)字集成電路設(shè)計的各個方面,非常適合用作學(xué)習(xí)數(shù)字集成電路設(shè)計的高年級本科生與研究生的教科書,也適合作為正在從事數(shù)字集成電路開發(fā)的工程人員的參考書。
標(biāo)簽:
上傳時間: 2022-06-30
上傳用戶:kristycreasy
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