-
课程设计 用matlab和simulink设计PID控制器(配源程序)
用matlab和simulink设计P、PI、PID控制器，并用ziegler-nichols经验公式整定，有论文，有matlab程序，有simulink模型
- 2020-06-28下载
- 积分：1
-
信息光学数字实验室
信息光学数字实验室配套资源，数字光学必备！！是学习光学，光学模拟的必备！
- 2021-05-06下载
- 积分：1
-
NoiseX-92原始完整版噪声数据库下载
NoiseX-92完整版，内附噪声说明文档。采用原始采用率19980Hz封装的wav文件，请使用MATLAB或Audition打开，直接使用播放器可能不支持这个采样率用于语音增强、音源分离、语音可懂度增强、语音合成、语音识别等在噪声环境下的鲁棒性检测。本资源有别于官网http://spib.linse.ufsc.br/noise.html最新提供的mat文件，是老版wav资源还可以下载时收集的，比mat文件使用起来更方便。
- 2020-12-10下载
- 积分：1
-
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
-
基于深度学习的车牌识别
目标识别是计算机视觉一个重要的研究领域，由此延伸出的车辆型号识别具有重要的实际应用价值，特别是在当今交通状况复杂的大城市，智能交通系统成为发展趋势，这离不开对车辆型号进行识别和分类的工作，本文围绕如何利用计算机视觉的方法进行车辆型号的识别和分类展开了一系列研究：本文对当前的目标识别和分类的特征和算法做了总结和归纳。分析比较了作为图像特征描述常见的特征算子，总结归纳了他们的提取方法、特征性能以及相互之间的关联。另外，介绍了在目标识别工作中常用的分类方法,阐述了他们各自的原理和工作方法。研究了深度神经网络的理论依据，分析比较了深度神经网络不同的特征学习方法，以及卷积
- 2020-11-28下载
- 积分：1
-
非局部均值滤波器
本资源为非局部均值滤波器的源码和DEMO，对应本人博客非局部均值滤波器一文。
- 2020-11-30下载
- 积分：1
-
matlab程序信噪比
信噪比是基于matlab超声去噪的一个程序，用于检测去噪的效果
- 2020-12-01下载
- 积分：1
-
RA8875 STM32F407 C++驱动
完成了基于RA8875自身绘图功能的文字显示、多边形显示以及触摸屏控制等功能。本程序基于SK-M32F407开发板，LCD为RA8875驱动的800x480屏幕。由于硬件可能有所不一致，需要经过改动才能移植成功到目标板上。特别注意的是，我所用的LCD的制作者不知为何故意将R和G的信号线调反了（具体可以看LCD的原理图我有上传），故本程序的色序为BGR，而不是RA8875默认的RGB。
- 2020-12-09下载
- 积分：1
-
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
-
Java+SQLServer学生成绩管理系统（代码+数据库）
学生成绩管理系统分为3大功能模块，分别为：学生信息管理、课程管理、成绩管理。
- 2021-05-06下载
- 积分：1
