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认知无线电的matlab仿真
matlab认知无线电仿真代码，AWGN信道，高斯噪声，仿真内容是错误概率-判决门限曲线，错误概率-信噪比曲线。错误概率分为漏检测和错误的警告，因此有四个图。每个图还与理论曲线进行了比较。
- 2020-12-04下载
- 积分：1
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英飞凌IGBT驱动培训资料
在电力电子装置中的一个重要组成部分,输入连接到控制电路的PWM信号输出端，输出连接到装置各IGBT的门极和发射极，将装置中的控制电路产生的数字PWM信号进行隔离传输和电平转换和功率放大,实现控制电路对IGBT进行开通和关断动作的控制，从而实现装置的功率变换功能。InfineontechnologiesIGBT Gate Drive: Power Suppliesa Gate driving voltage for IGBT+15Vturn-on is normally +15VDriver>□1a Gate driving voltage for IGBTOVturn-off can be oV or negativeWith Single Power Supply5V to-15V)a Negative gate driving voltage+15Vhelps IGBt switch off fasterremain in off state but itDriverneeds dual power suppliesOVWhether to use oV or negativegate driving voltage depends15VWith Dual Power Supplieson the requirement on costZH Liang - Al APperformance05Dec2003agefor internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: InterfaceOpto-couplers is commonly used as interfacingdevices for applications where both signaltransmission and potential isolation are requiredOpto-couplers offers reliable isolation between IGBT(high-potential)& micro-controller(low-potential)Opto-couplers has long signal delay(us)and isexpensiveIsolation +VDpCCMicroDrivercontrollerZH Liang - Al AP05Dec2003Page 6for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Half-bridge DriveStandard configuration: 2 drivers, 2 power supplies, 2 opto-couplersAdvantages: standard, reliableDisadvantages: using opto-couplers, higher system costIsolation +VDDlCC1DriverCC1MicrocontrollerDD2+VCC2DriverCC2ZH Liang - Al AP05Dec2003Page 7for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Half-bridge DriveIn half-bridge IGBT drive, opto-couplers offer two functions(1)safety isolation &(2) shifting the potential of the gatesignal from uc potential to high-side potentialIf safety isolation between IGBT& micro-controller is notneeded, then"Level Shift" can replace opto-coupling andrealize function(2)OptoHigh-sideHigh-sidecouplerDriverIGBTMicro-Opto-LoW-sideLow-sidecontrollercouplerDriverIGBTZH Liang - Al AP05Dec2003Page 8for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive Level shiftI FeaturesHVc(600V/1200V)沿PULSERFILTERShort Signal DelayPULSE■Cost- effectiveGEN■ No Safety Isolationevel Shift Half-bridge DriverI BenefitHigh-side““°IGBTO Saving Opto-couplersLevel(lower system costShiftMicro● Wider range ofcontrollerLevelLow-side■■■■■直■口m留■Switching FrequencyShiftIGBT(higher flexibility)ZH Liang - Al AP05Dec2003Page 9for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: CLTNEWO CLT-Coreless Transformer (for signal transmissionu Coils(Primary Secondary Side)realized on SiliconO Short Signal Delay (allowing high or low switching frequencyu Lower Cost(compared to 1200V level-shift driver日 Safety IsolationCLT Half-bridge DriverHigh-sideCLT Single DriverIGBTCLTMicro-controllerCLTIGBTMicro-controllerLoW-sideIGBTZH Liang - Al AP05Dec2003agefor internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Boot-strapBoot-strap circuit includes only a diode and a capacitora In half-bridge drive, the boot-strap circuit can replace the high-sidepower supply and make single-supply operation possibleWhen the low-side IGBT (or FWD)is on, the diode is forwardbiased and the capacitor is charged by the low-side power supplyvia the low-side IGBT and stores the energyWhen the low-side IGBt(and FWD)is OFF, the diode is reversebiased and blocks the dc-bus voltage to protect the low-sidecircuit. Meanwhile, the capacitor supplies energy to the high-sidedriverThe boot-strap capacitance should be high enough to keep thesupply voltage stable Capacitance needed can be calculatedbased on the working conditions and device parametersZH Liang - Al AP05Dec2003agefor internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Boot-strap circuitConventional2心菲*|■3 high-side power supplies■1|oW- side power supplyUsing boot-strap circuit心体心心●3 diodes& capacitorso 1 low-side power supplyFeaturesa Diode: ultra-fast recoverya Capacitor: general-purposed ITAa Dependent on low-side IGBTBenefitsSaving 3 PS(transformer cost)22ZH Liang - Al AP05Dec2003Reducing wiring connectionPage 12for internal use onlyInfineon Technologies Asia Pacific
- 2020-12-11下载
- 积分：1
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matlab 计算李雅普诺夫指数的方法集合
matlab 计算李雅普诺夫指数的方法集合
- 2020-06-23下载
- 积分：1
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根据计盒维数原理编写的求一维曲线分形维数的matlab程序
分形维数MATLAB计算程序。根据计盒维数原理编写了求一维曲线分形维数的matlab程序
- 2020-12-03下载
- 积分：1
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基于MATLAB／Simulink的光伏电池建模与仿真
基于MATLAB／Simulink的光伏电池建模与仿真
- 2020-11-28下载
- 积分：1
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运动目标航迹仿真
该代码模拟了一个圆形运动目标的航迹，运用matlab实现
- 2020-12-03下载
- 积分：1
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改进的高效Camshift跟踪算法
Camshift是一种应用颜色信息的跟踪算法，它对做加速度的运动物体跟踪效果不够稳定和强壮，从准确预测目标位置及缩小目标搜索范围入手对 算法进行了改进该算法使用运动目标加速度运动位移方程预测下一时刻目标可能出现的位置，使用预测位置误差方程估计运动目标搜索范围，并使用HR滤波器对目标运动速度加速度等参数自适应地修正实验证明，改进的 Camshift有效地克服了Camshift 算法自身的缺陷，即使运动目标做加 速运动时，也可准确地预测运动目标的位置，缩小目标搜索范围，进而提高目标跟踪速度1802009,45(27)Computer Engineering and Applicationsg4△n=|k+1-1h+110802641033448080140260ak+=y·ak++1-y·a23625652902602892500≤ay≤13562567420246119848024048223647ghgk+1°532236541234345、61058123258323262Camshift500220M0-18025017005010015020025030050100150200250300b0。1=0.8、y=0.8shiftshiftgA8k[1 Collins R T Lipton A J. Introduction to the special section onvideo surveillance[J].IEEE Trans on Pattern Anaysis and Machine0Intelligence 2000 228 745-746[2 Hu Weiming Xiao Xuejuan Tan Tieniu Traffic accident predictionehicle tracking and traportation System 2003 11 220-223 Boyle M.The effects of capture conditions on the CAMSHiFT facetracker[R Alberta Canada Department of Computer Science Univer-sity of Calgary 20012007111991-19935] Murat T Digital video processing[M][SI. Prentice Ilall Inc 199694-956 Collins Lipton Kanade et al A system for video surveillance and monitoring VSAM final report Technical Report CMU2RI2TR200212[R]CamshiftRobotics Institute Carnegie Mellon University 2000o1994-2009ChinaAcademicJournalElectronicPublishingHouse.Allrightsreservedhttp://www.cnki.net
- 2020-11-27下载
- 积分：1
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java企业报刊订阅系统
(1)背景：企业报刊订阅管理系统(2)主要实现以下功能：1)录入功能：对于管理员，包括新用户信息和新报刊信息的录入功能，信息一旦提交就存入到后台数据库中；录入订阅人员信息、报刊基本信息；普通用户自行登录进行修改一些个人信息。2）登录功能：登陆系统为身份验证登录。分为管理员登录和一般用户登录。分别通过不同的用户名和密码进入报刊订阅管理界面。3)订阅功能：订阅人员订阅报刊（并计算出其金额）；4)查询功能：用户可以查询并显示自己所订阅的信息；管理员可以按人员、报刊、部门分类查询。查询出的信息显示在界面上。5)统计功能：管理员可以按用户、部门、报刊统计报刊的销售情况，并对一些重要的订阅信息
- 2020-11-28下载
- 积分：1
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压缩感知程序代码
压缩感知，又称压缩采样，压缩传感。它作为一个新的采样理论，它通过开发信号的稀疏特性，在远小于Nyquist 采样率的条件下，用随机采样获取信号的离散样本，然后通过非线性重建算法完美的重建信号。压缩感知理论一经提出，就引起学术界和工业界的广泛关注。他在信息论、图像处理、地球科学、光学/微波成像、模式识别、无线通信、大气、地质等领域受到高度关注，并被美国科技评论评为2007年度十大科技进展
- 2021-05-07下载
- 积分：1
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DevExpressPatch 8.0 for Visual Studio 2019(16.2) devexpress 18.2.7
已经重新打包，支持devexpress18.2.7，支持vs2019 16.2的版本。
- 2020-12-06下载
- 积分：1
