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mysql-5.7.17.msi安装版
mysql-5.7.17.msi安装版，不是解压版，之前找了这个资源很久，但都没有找到（而且资源分要的还比较高），现在找到了，提供给广大开发好友下载
- 2020-12-04下载
- 积分：1
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灾情巡视 建模论文 程序部分 模拟退火 遗传算法 神经网络（详细）
灾情巡视 建模论文 程序部分 包括 模拟退火 遗传算法 神经网络（详细）
- 2020-12-09下载
- 积分：1
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修改apk源码，apk打包工具
反编译apk，修改apk源码，并重新打包生成新的apk。反编译apk，修改apk源码，并重新打包生成新的apk。
- 2020-12-08下载
- 积分：1
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串联谐振电路simulink模型
文档为串联谐振电路simulink模型，作为电路入门学习，参数可修改。
- 2020-11-27下载
- 积分：1
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FPGA自编音乐播放器
使用Verilog自编音乐播放器,在FPGA上实现播放梁祝,茉莉花,生日歌
- 2020-06-27下载
- 积分：1
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2020年最新web寄生虫程序.zip
【实例简介】2020年最新web寄生虫程序，最新程序 泛目录，远程调用，SEO霸屏 站群最好程序 百度 搜狗 360 各大搜索引擎快速收录引蜘蛛爬行
- 2021-11-06 00:35:24下载
- 积分：1
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python requests模块下载
requests是python的一个HTTP客户端库，跟urllib，urllib2类似，那为什么要用requests而不用urllib2呢？官方文档中是这样说明的：“ python的标准库urllib2提供了大部分需要的HTTP功能，但是API太逆天了，一个简单的功能就需要一大堆代码。”
- 2020-12-11下载
- 积分：1
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基于STM32库函数的AD9854
亲测可用，使用的都是STM32F103基本的外设资源，一般的32板子都能用，只用连接下引脚既可。可以实现定频输出，斜率扫频输出及其他模式的输出，且稳定误差小。调了好几天才算调通，配置的就那四个寄存器，重要的是时序不要错。还有个血泪教训，我用的是JTAG下载调试的，占用了B口的两个引脚，我的地址线也用到了那两个引脚导致我几天都没调出来，后来在程序里把JTAG关了就好了！！
- 2020-12-12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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基于STM32的GPS导航无人驾驶小车
这是我用stm32和GPS模块做的无人驾驶小车，可以跑路线，设置一个目标经纬度后，那个小车就会自动向目标经纬度驾驶过去。核心是根据目标经纬度和当前经纬度解算出合适的方向角然后交由小车执行，，车上有陀螺仪，然后根据陀螺仪的反馈，用PID算法使得小车按照这个方向角去自行移动。
- 2020-11-28下载
- 积分：1
