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SOC设计+芯片设计漫游指南全书代码+国科大EDA全套设与实践课件讲义与实例.rar
文档为自己整理的一整套的关于Soc设计及EDA课程，包括完整的SoC开发设计流程课程、芯片设计漫游指南全书代码、国科大EDA全套设与实践课件讲义与实例，个人感觉对衷于SoC设计入门的同行大有裨益
- 2021-05-06下载
- 积分：1
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UCGUI+UCOS-II 例程源代码
UCGUI+UCOS-II 例程源代码，包含内容：STM32 UCOS-II UCGUI图形开发库。
- 2021-05-06下载
- 积分：1
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Matlab仿真的风电场并网问题论文的源码
【实例简介】近一二十年的时间里,环境污染和资源紧缺问题日益严重,使风力发电作为一种可再生能源得到迅速发展。
由于风速的随机性和间歇性而决定了风电机组的出力具有波动性和间歇性,进而对电力系统的电能质量和安全稳定运行造成影响。随着风电场规模的不断扩大,风电并网对电力系统的负面影响将越来越显著,因此,深入研究风电场与电网的相互作用成为进一步开发风电迫切要求解决的问题。
本文主要以双馈异步风力发电系统为研究对象,着眼于并网风电场与电网之间的相互影响,基于MATLAB的仿真平台,进行了潮流计算和动态仿真。主要工作内容如下：
首先,分别研究了由双馈异步风力发电机、直驱永磁同步风力发电机以及综合使用以上两种风力发电机组成风电场的工作原理,建立了风速的各种模型,双馈异步风力发电机和风力机模型等等。
其次,对含有以上两种机型的三种不同风电场进行潮流分析,并利用MATLAB编程,计算风电场并网点电压质量是否满足电网的要求；并为研究风电场并网运行的暂态特性提供了前提条件。
最后,建立了风速模型、用于动态仿真的风电机组模型以及风电场模型,利用MATLAB/Simulink及播音主持论文http://www.xyclww.com/post/29.html，其仿真工具实现了包含风电场的电力系统动态仿真,仿真可以模拟风电场在各种风速扰动、负荷扰动下的出力变化,以及网络发生三相短路故障、断线故障等大扰动后的动态过程。通过对具体算例的仿真验证了所建立的风电机组模型的正确性和可行性。
- 2021-11-12 00:33:03下载
- 积分：1
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abaqus焊接仿真插件
abaqus焊接工艺仿真插件，可以模拟激光焊、氩弧焊、搅拌摩擦焊等多种焊接工艺及多遍焊接过程，操作简单，附带帮助文档
- 2021-05-06下载
- 积分：1
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西门子OPC UA官方示例程序源代码
西门子官方提供的OPC UA客户端程序源代码，可用于西门子SINUMERIK 840Dsl数控系统的OPC UA数据采集。
- 2020-12-06下载
- 积分：1
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基于ARM_linux多媒体播放器的Qt源码
该源码为多媒体播放器源码包，是基于linux下Qt编写的程序，具有一般多媒体播放器的功能：快进，快退，音量，时间等等。对Qt学习很有帮助。
- 2020-12-05下载
- 积分：1
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基于51单片机和LTC1865的液晶显示双通道电压测量.rar
【实例简介】使用51单片机、AD转换使用LTC1865、利用1602液晶巡回显示，并通过串口发送测量电压值至虚拟仪器。
- 2021-12-05 00:40:13下载
- 积分：1
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FAM和SSCA算法的matlab源程序-detection and identification of signal
FAM和SSCA算法的matlab源程序-detection and identification of signalFAM和SSCA算法的matlab源程序-detection and identification of signalDISCLAIMER NOTICEMTHIS DOCUMENT IS BESTQUALITY AVAILABLE. THECOPY FURNISHED TO DTICCONTAINED A SIGNIFICANTNUMBER OF PAGES WHICH DONOT REPRODUCE LEGIBLY.ilApproved for public release; distribution is unlimitedDETECTION AND IDENTIFICATION OF CYCLOSTATIONARY SIGNALSEvandro luiz da costaLieutenant Commander, brazilian NavyB.S., Instituto Militar de Engenharia, 1980Submitted in partial fulfillmentof the requirements for the degree ofMASTER OF SCIENCE IN ELECTRICAL ENGINEERINGANDMASTER OF SCIENCE IN ENGINEERING ACOUSTICSfrom theNAVAL POSTGRADUATE SCHOOLMarch 1996Author.Evandrodk da costaapproved byRQ求Ralph Hippenstiel, Thesis Co-AdvisorRoberto Cristi, Thesis Ca-AdvisoiHerschel. Loomis, Jr, hairmanDepartment of Electrical and Computer EngineeringArthony A. Atchley / ChairmanEngineering Acoustics Academic CommitteeABSTRACTPropeller noise can be modeled as an amplitude modulated(AM) signalCyclic Spectral Analysis has been used successfully to detect the presence ofanalog and digitally modulated signals in communication systems. It can also identithe type of modulation. Programs for Signal Processing based on compiledlanguages such as FORTRAN or C are not user friendly, and MATLAB basedprograms have become the de facto language and tools for signal processingengineers worldwideThis thesis describes the implementation in mAtlab of two fast methods ofcomputing the Spectral Correlation Density(SCD)Function estimate, the FFTAccumulation Method (FAM)and the Strip Spectral Correlation Algorithm( SSCA),toperform Cyclic Analysis. Both methods are based on the Fast Fourier transformFFT)algorithm. The results are presented and areas of possible enhancement forpropeller noise detection and identification are discussedTABLE OF CONTENTSINTRODUCTIONA MOTIVATION,P,中“····*s···:···:B BACKGROUNDC THESIS GOALSIL NOISE IN THE OCEAN··+A TYPES OF UNDERWATER NOISE25561. Ambient Noise番申2. Self noise3. Radiated noise8B RADIATED NOISE FROM SHIPS, SUBMARINES AND TORPEDOES.......8C PROPELLER NOISE10lI CYCLOSTATIONARY PROCESSING15A CYCLOSTATIONARIT15B THE CYCLIC AUTOCORRELATION FUNCTION (ACF)17C THE SPECTRAL CORRELATION DENSITY FUNCTION (SCD)18N. ESTIMATION OF THE SPECTRAL CORRELATION DENSITY FUNCTION23A FFT ACCUMULATION METHOD(FAM)25B STRIP SPECTRAL CORRELATION ALGORITHM(SSCA■D28V. EXPERIMENTAL RESULTSA. ANALOG-MODULATED SIGNALS311. Amplitude Modulated(AM)Signal===2-312. Pulse-Amplitude Modulated(PAM) Signal58B DIGITAL-MODULATED SIGNALS1. Amplitude Shift Keying(ASK) Signal中中非昏号即即号自唱即自曲音非带卡.最662. Binary-Phase Shift Keying(BPSK) Signal6了VI CONCLUSIONS81A SUMMARY81B SUGGESTIONS82APPENDIX A-CALCULATION OF THE SCD FUNCTION OF AN AMPLITUDE-MODULATED SIGNAL83APPENDIX B-FUNCTION AUTOFAM95APPENDIX C-FUNCTION AUTOSSCA99APPENDIXD-FUNCTION CROSSFAM103APPENDIX E-FUNCTION CROSSSSCA109APPENDIX F-PLOTTING ROUTINES113LIST OF REFERENCES115INITIAL DISTRIBUTION LIST看音117INTRODUCTIONA. MOTIVATIONPropeller related acoustic signatures typically exhibit modulationcharacteristics. These modulation characteristics originate from the cavitationprocess that takes place in the water due to the cyclic movement of the propellerThe cavitation process is basically the collapse of air and vapor bubblesdue to variations in the static pressure. These variations in static pressure are aconsequence of the passage of the propeller blades through the water. Thismovement, cyclic in nature, causes amplitude modulation in the static pressureand as a consequence an amplitude-modulated(AM) signal can be detected in areceiverCyclostationary processing techniques have been used to detect andlentify analog and digital communication signals very successfully. Thesetechniques have the advantage of using a more realistic model for the signalthan the stationary model used in most of the more conventional signalprocessing techniquesB BACKGROUNDThe basic elements of cyclic spectral analysis are the time-variant cyclicperiodogram and the time-variant cyclic correlogram. These two functions form aFourier transform pair. This fact is known as the cyclic Wiener relation or thecyclic Wiener-Khinchin relation [Ref. 1: p. 49.1
- 2020-12-05下载
- 积分：1
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在Matlab上实现自相关和互相关函数
由于MATLAB本身自带的相关函数在扩频通信中并不适合，性能欠佳。本程序是我自己编写的求自相关或互相关的MATLAB函数。可直接调用该函数。已通过验证。
- 2020-07-03下载
- 积分：1
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numpy-1.13.1+mkl-cp36-cp36m-win_amd64.whl
numpy-1.13.1+mkl-cp36-cp36m-win_amd64.whl Install numpy+mkl before installing scipy.
- 2020-11-30下载
- 积分：1
