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基于脉搏波的动脉硬化识别方法的研究
SODATA算法是在k-均值算法的基础上，增加对聚类结果的“合并”和“分裂”两个操作，并设定算法运行控制参数的一种聚类算法。迭代次数会影响最终结果，迭代参数选择很重要。
- 2020-12-09下载
- 积分：1
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简易频谱分析仪[2005年电子大赛一等奖].
【实例简介】简易频谱分析仪[2005年电子大赛一等奖].
- 2021-10-29 00:32:33下载
- 积分：1
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用icp算法解决图像配准问题
【实例简介】对icp算法的实现，matlab程序，该方法对原有的ICP算法进行了改进，算法较为简单
- 2021-11-14 00:43:15下载
- 积分：1
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基于DSP的语音录放实验程序
基于TMS320VC5416芯片、TLV320AIC23音频编解码芯片的语音录放程序，已生成.out可执行和.img烧写文件完美仿真运行。实验内容主要完成以下几点：1.DSP初始化；2.同步串口0（McBSP0）初始化为I2S模式；3.同步串口1（McBSP1）初始化为SPI模式；4.中断控制寄存器初始化；5.McBSP0发送中断服务程序；6.McBSP0接收中断服务程序；7.中断向量表；8.NANDFLASH驱动程序；9.TLV320AIC23初始化为MIC IN；10.TLV320AIC23初始化为LINE IN。仿真运行时，实验箱键盘各键功能设置如下：1#键
- 2020-12-02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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小波阈值去噪+模极大值去噪 代码实现
利用小波算法实现图像去噪，包含软硬阈值去噪，中值，均值滤波等，内含图片灰度与彩色实例。以及代码文件说明、
- 2020-12-06下载
- 积分：1
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PSCAD APF仿真模型
PSCAD APF仿真模型
- 2020-12-11下载
- 积分：1
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医院病历管理系统源代码
MFC编写的一个医院病历管理系统，有使用数据库等技术。
- 2021-05-07下载
- 积分：1
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小波相对能量法分析（matlab实现说明代码）
relative_energy的小波分析代码，可以用来特征分析，该文件是有国外权威学者发布的代码，引用时请注明Copyright (c) 2009, Guan Wenye All rights reserved.很好的资料
- 2020-12-03下载
- 积分：1
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Nonlinear Model Predictive Control: Theory and Algorithms
非线性模型预测控制：理论和算法 图书 Nonlinear Model Predictive Control: Theory and Algorithms，Grüne Lars, Pannek Jürgen
- 2020-12-11下载
- 积分：1
