wordpress-4.9.6-it_IT

直接数字频率合成技术DDS的Matlab系统建模及频谱分析，同时对相位截断误差和量化误差同进行了分析(Direct digital frequency synthesis technology of DDS Matlab system modeling and spectral analysis, while the phase truncation error and quantization error are analyzed with)

SVPWM的主要思想是以三相对称正弦波电压供电时三相对称电动机定子理想磁链圆为参考标准，以三相逆变器不同开关模式作适当的切换，从而形成PWM波，以所形成的实际磁链矢量来追踪其准确磁链圆。传统的SPWM方法从电源的角度出发，以生成一个可调频调压的正弦波电源，而SVPWM方法将逆变系统和异步电机看作一个整体来考虑，模型比较简单，也便于微处理器的实时控制。(The main idea of SVPWM is that the ideal magnetic chain circle of the three-phase symmetrical motor is used as the reference standard when the three-phase symmetric sine wave voltage is supplied, and the PWM wave is formed by the proper switching of the three phase inverters in different switching modes, and the accurate magnetic chain circle is traced with the actual flux vector formed. The traditional SPWM method starts from the angle of the power supply to generate a frequency modulation voltage regulating sinusoidal power supply. While the SVPWM method considers the inverter system and asynchronous motor as a whole, the model is simple and convenient for the real-time control of the microprocessor.)

列表框运行输入，可以在运行时输入数值，并且在可以自动在前面添加项(The list box runs the input, which can enter numeric values at run time, and automatically add items in front.)

版本历史 -------------------------------------------------------------- [x] 修正 [+] 新增[*] 改进/改变 [i] 信息（请仔细阅读） 当前版本：v0.6 -------------------------------------------------------------- [i] 新增70种设备代码 [i] 目前对外置HUB支持不好，测试时请不要使用USB HUB，这一问题会在未来版本中改进。 [x] 修正了接入设备后按“刷新”程序报错 [x] 优化了内存使用 关于SigmaTel 35系列的分辨： 由于SigmaTel 3500系列产品型号非常乱，并且很多厂商也会自行修改设备识别码，造成识别错误。但如果本软件识别出芯片是SigmaTel　3500系列的话，则可从设备的速度及具体配置来判断，目前使用的最多的型号便是STMP3502与STMP3520，如果USB速度是480Mbps则可认定芯片为STMP3520，否则为STMP3502。更加细节的识别方式，我们将会刊登在我们的论坛上:forum.easydigi.com-err

说明：  使用方法重载来计算三角形，长方形和圆形的面积。给三维向量的加法设计运算符重载并测试结果(Use method overload to calculate the area of triangle, rectangle and circle. Overload the additive design operators for three-dimensional vectors and test the results)

说明：  采用二次规划算法求解电动汽车入网的优化控制策略问题，控制车辆(Using quadratic programming algorithm to solve the problem of optimal control strategy of electric vehicle network access, control the vehicle)

说明：  对智能车辆横向运动进行控制系统设计，根据最后通过鲁棒自适应容错控制融合得到全局控制输出，在仿真中展示最终结果。(According to the design of the lateral motion control system of intelligent vehicle, the global control output is obtained by the fusion of robust adaptive fault-tolerant control, and the final result is displayed in the simulation. The lateral motion control system of intelligent vehicle is designed. Finally, the global control output is obtained through robust adaptive fault-tolerant control fusion, and the final result is displayed in the simulation.)

说明：  利用最大似然估计法,对双频率的指数信号参数进行估计(Using the maximum likelihood estimation method, the parameters of exponential signals with two frequencies are estimated)

Ansys fluent流固耦合模拟例题(an example for ansys fluent)

Multisim9xunfang.rar, 压缩包解压时不能有密码。-Multisim9xunfang.rar, compressed packets can not extract the password.