pwm research and implementation on mcs-51
標簽： implementatio research pwm and
上傳時間： 2013-11-23
上傳用戶：a155166
摘 要 瞬態仿真領域的許多工作需要獲得可視化數據, 仿真電路不能將輸出參數繪制成圖形時研究工作將受到很大影響. 而權威電路仿真軟件PSpice 在這個方面不盡如人意. 本文提出了一種有效的解決辦法: 通過MATLAB 編程搭建一個PSpice 與MATLAB 的數據接口,使PSpice輸出數據文件可以導入到MATLAB中繪制圖形. 這令我們能夠很方便地獲得數據的規律以有效地分析仿真結果, 這項技術對于教學和工程實踐都有比較實際的幫助.關鍵詞: 瞬態仿真 仿真程序 PSpice MATLAB 可視化數據The Data Transfer from Pspice to MATLABWu hao Ning yuanzhong Liang yingAbstract Many works in the area of transient simulation has shown how a emulator such asPSpice can be interfaced to an control analysis package such as MATLAB to get viewdata. Thepaper describes how such interfaces can be made using the MATLAB programming. The platformas a typical platform will solve the problem that PSpice software sometimes can not draw the datato a picture. It can make us find the rule from numerous data very expediently, so we can analyzethe outcome of the simulation. And it also can be used in the field of education.Keywords Transient Simulation Emulator PSpice MATLAB Viewdata1 引言科學研究和工程應用常需要進行電路仿真 PSpice可進行直流 交流 瞬態等基本電路特性分析 也可進行蒙托卡諾 MC 統計分析 最壞情況 Wcase 分析 優化設計等復雜電路特性分析 它是國際上仿真電路的權威軟件 而MATLAB的主要特點有 高效方便的矩陣和數組運算 編程效率高 結構化面向對象 方便的繪圖功能 用戶使用方便 工具箱功能強大 兩者各有著重點 兩種軟件結合應用 對研究工作有很重要的意義香港理工大學Y. S. LEE 等人首先將PSpice和MATLAB結合 開發了電力電子電路優化用的CAD 程序MATSPICE[6] 將兩者相結合的關鍵在于 如何用MATLAB 獲取PSpice的仿真數據 對此參考文獻 6 里沒有詳細敘述 本文著重說明用MATLAB 讀取PSpice仿真數據的具體方法本論文利用MATLAB對PSpice仿真出的數據處理繪制出后者無法得到或是效果不好的仿真圖形 下面就兩者結合使用的例子 進行具體說明
上傳時間： 2013-10-20
上傳用戶：wuchunzhong
Abstract: This application note discusses the development and deployment of 3G cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, "FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers."
標簽： Base-Station Applications Single-Chip Transceiver
上傳時間： 2013-11-07
上傳用戶：songrui
SRAM-based FPGAs are non-volatile devices. Upon powerup, They are required to be programmed from an external source. This procedure allows anyone to easily monitor the bit-stream, and clone the device. The problem then becomes how can you effectively protect your intellectual property from others in an architecture where the part is externally programmed?
上傳時間： 2013-11-06
上傳用戶：wl9454
波長信號的解調是實現光纖光柵傳感網絡的關鍵，基于現有的光纖光柵傳感器解調方法，提出一種基于FPGA的雙匹配光纖光柵解調方法，此系統是一種高速率、高精度、低成本的解調系統，并且通過引入雙匹配光柵有效地克服了雙值問題同時擴大了檢測范圍。分析了光纖光柵的測溫原理并給出了該方案軟硬件設計，綜合考慮系統的解調精度和FPGA的處理速度給出了基于拉格朗日的曲線擬合算法。 Abstract: Sensor is one of the most important application of the fiber grating. Wavelength signal demodulating is the key techniques to carry out fiber grating sensing network， based on several existing methods of fiber grating sensor demodulation inadequate， a two-match fiber grating demodulation method was presented. This system is a high-speed， high precision， low-cost demodulation system. And by introducing a two-match grating effectively overcomes the problem of double value while expands the scope of testing. This paper analyzes the principle of fiber Bragg grating temperature and gives the software and hardware design of the program. Considering the system of demodulation accuracy and processing speed of FPGA，this paper gives the curve fitting algorithm based on Lagrange.
上傳時間： 2014-07-24
上傳用戶：caiguoqing
The Linux Programming Interface - A Linux and UNIX System
標簽： Programming Linux Interface Handbook
上傳時間： 2013-11-10
上傳用戶：asdstation
6小時學會labview, labview Six Hour Course – Instructor Notes This zip file contains material designed to give students a working knowledge of labview in a 6 hour timeframe. The contents are: Instructor Notes.doc – this document. labviewIntroduction-SixHour.ppt – a PowerPoint presentation containing screenshots and notes on the topics covered by the course. Convert C to F (Ex1).vi – Exercise 1 solution VI. Convert C to F (Ex2).vi – Exercise 2 solution subVI. Thermometer-DAQ (Ex2).vi – Exercise 2 solution VI. Temperature Monitor (Ex3).vi – Exercise 3 solution VI. Thermometer (Ex4).vi – Exercise 4 solution subVI. Convert C to F (Ex4).vi – Exercise 4 solution subVI. Temperature Logger (Ex4).vi – Exercise 4 solution VI. Multiplot Graph (Ex5).vi – Exercise 5 solution VI. Square Root (Ex6).vi – Exercise 6 solution VI. State Machine 1 (Ex7).vi – Exercise 7 solution VI. The slides can be presented in two three hour labs, or six one hour lectures. Depending on the time and resources available in class, you can choose whether to assign the exercises as homework or to be done in class. If you decide to assign the exercises in class, it is best to assign them in order with the presentation. This way the students can create VI’s while the relevant information is still fresh. The notes associated with the exercise slide should be sufficient to guide the students to a solution. The solution files included are one possible solution, but by no means the only solution.
標簽： labview
上傳時間： 2013-10-13
上傳用戶：zjwangyichao
The main objective of this book is to present all the relevant informationrequired for RF and micro-wave power amplifier design includingwell-known and novel theoretical approaches and practical design techniquesas well as to suggest optimum design approaches effectively combininganalytical calculations and computer-aided design. This bookcan also be very useful for lecturing to promote the analytical way ofthinking with practical verification by making a bridge between theoryand practice of RF and microwave engineering. As it often happens, anew result is the well-forgotten old one. Therefore, the demonstrationof not only new results based on new technologies or circuit schematicsis given, but some sufficiently old ideas or approaches are also introduced,that could be very useful in modern practice or could contributeto appearance of new ideas or schematic techniques.
標簽： Amplifier Microwave Design Power
上傳時間： 2013-12-22
上傳用戶：vodssv
RF circuit design theory and application(射頻電路設計)
標簽： application circuit design theory
上傳時間： 2014-12-30
上傳用戶：aeiouetla
Abstract: High-speed and low-speed data converters serve critical functions in modern broadband mobile radios. This application note outlines how todetermine high-speed data converter performance requirements in baseband sampling radio architectures. Also, system partition strategies andadvantages are outlined when considering a high-speed analog front-end (AFE) solution.
上傳時間： 2013-11-02
上傳用戶：jjj0202
