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RBF神经网络的短期交通流预测源码
自己写的利用RBF神经网络做的短期交通流预测matlab源码
- 2021-05-06下载
- 积分：1
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TCL脚本语言-基础(1-14).pdf
【实例简介】Tcl语言是若类型脚本语言。但是它的用处十分宽广。它主要提供软件的二次开发。如Hypermesh的二次开发。
国内的关于Tcl的书籍和网络资源相当的少，所以一本关于Tcl语言的基础文档是十分的珍贵。
- 2021-11-12 00:31:08下载
- 积分：1
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Qt编写的串口收数据并显示数据曲线
Qt编写的串口收数据并显示数据曲线，收到的数据自动存盘，以时间命名。可以选择曲线显示的更新点数，数据格式，和自动存盘数据长度。
- 2020-12-05下载
- 积分：1
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主动噪声控制的经典FX-lms算法仿真
主动噪声控制的经典FX-lms算法仿真，包括算法框图，结果分析
- 2020-12-05下载
- 积分：1
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经典的UCI数据集matlab格式
已经经过matlab处理的UCI部分数据集，可使用Matlab直接读入
- 2020-06-29下载
- 积分：1
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matlab实现雷达PPI显示器的动态效果图.m
【实例简介】PPI显示器应用广泛，它可以按照以正北为方位向基准(0°)，顺时针计量方向，距离沿着半径方向，图的中心是雷达站的位置。雷达波束顺时针扫描的过程就是在不同方位探测目标，远近不同的目标，以不同亮度的点反映在了显示器上，看一眼就知道了距离和方位。
- 2021-12-01 00:31:37下载
- 积分：1
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Nandflash工厂烧录文件制作步骤
文档介绍了如何使用海思自带工具制作分区镜像，并生成烧录文件的步骤。对于初学者来说十分有用
- 2020-12-07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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C#项目源码100例
【实例简介】这里有本人搜集的C#源码100例，其中都是小项目，对使用Visual Studio中的常用工具有很好的促进作用，个人觉得只要能把其中的一部分真正吃透就能够打下比较好的基础了。而且通过练习我也发现，模仿源码项目并真正靠自己的理解写出源码是最好的学习方式之一，现在把这些源码例子拿出来和大家分享一下，希望对您有所启发！
- 2021-11-16 00:41:39下载
- 积分：1
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NACA翼型生成软件
自动生成NACA翼型数据点，为后续画网格，做流体仿真做准备！
- 2020-07-02下载
- 积分：1
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