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2007年全国数学建题
2007年全国数学建题-Mathematical built nationwide in 2007 title
- 2023-04-09 12:20:03下载
- 积分：1
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SVPWM的simulink仿真
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.)
- 2018-05-25 09:46:04下载
- 积分：1
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实现摄影测量中空间后方交会的问题，用以求得像片的内外方位元素...
实现摄影测量中空间后方交会的问题，用以求得像片的内外方位元素-To achieve space resection in photogrammetry issues photograph to obtain the internal and external orientation elements
- 2022-01-26 02:13:02下载
- 积分：1
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一个不错的系统优化批处理程序
说明： 体验相当不错，运用了突进模拟方式，将批处理快速增强(NICE BAT Using backhole to clear win10 cache files in one step)
- 2019-10-04 02:04:40下载
- 积分：1
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facedata
这是读好的ORL 和YALE人脸库数据， 用LODA加载后， 变量train 代表是训练样本， test 代码是测试样本。(This is a good time ORL and Yale face database data, using Loda loaded, variable train representatives training samples, test code is to test the samples.)
- 2008-12-29 12:22:15下载
- 积分：1
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shopweb
使用springmvc、spring、mybatis框架搭建的简单web商城(Simple web mall built with SSM framework)
- 2018-04-14 15:07:55下载
- 积分：1
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实验12 OLED显示实验
讲述了如何构建OLED的程序框架，编写程序的大致思路。(This paper describes how to build the OLED program framework and how to write the program.)
- 2019-05-27 09:49:20下载
- 积分：1
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AX20XX_APP_V0.47
TF卡，USB读卡器方案源程序；建荣方案(TF card, USB reader program source Kin Wing program)
- 2012-12-08 21:05:31下载
- 积分：1
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dore
24点游戏,相信大家都玩过 这里给出一个c＋＋算法实现计算机运算()
- 2018-05-24 17:06:33下载
- 积分：1
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Python-GUI-Programming-Cookbook
说明： Over 80 object-oriented recipes to help you create mindblowing
GUIs in Python
- 2020-06-23 00:40:01下载
- 积分：1
