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双极性pwm控制技术逆变器，采用pwm技术对逆变器进行控制实现逆变功能(pwm nibianqi)

The file includes: checking stock data read in data covariance deviation minimum variance portfolio gui

Direct torque control of IM

QAM调制代码，在命令行中输入调制参数，输出星座图等(the QAM modulation matlab code，which can export the constellation )

活塞式压缩机进气管道压力脉动matlab程序(matlab program to calculate the pressure pulsation of piston compressor inlet pipe )

a gui used for controling robot

本文基于大型通用有限元软件ANSYS和MATLAB,探索三维实体模型下进行PC桥梁结构整体仿真分析的途径,研究其关键理论及专业模块开发技术。重点研究了预应力筋的模拟、预应力效应的等效转换和桥梁截面切片技术。研究成果可广泛应用于PC桥梁的三维仿真领域,具有较大的理论意义和工程实用价值。对写这方面研究很有帮助(Based on large-scale general-purpose finite element software ANSYS and MATLAB, explore the three-dimensional solid model of the bridge structure under the PC way to the overall simulation analysis to study the key theoretical and professional development of technology modules. Focused on the tendons of the simulation, the equivalent effect of prestressed bridge conversion and cross-section slicing. Research results can be widely used in PC bridges the field of three-dimensional simulation with the larger theoretical and practical engineering value. Research in this area to write very helpful)

阵列信号处理_空间谱估计原理的一些基本算法——MusicEspritMp(Array signal processing _ the principle of spatial spectrum estimation of some of the basic algorithm- MusicEspritMp)

matlab 电子工业出版社 中文学习资料，版本7.0(Publishing House of Electronics Industry matlab Chinese learning materials, version 7.0)

matlab学习资料，常用函数的使用，适合初学者和常用matlab工作者下载学习。(matlab learning data, the use of commonly used functions, suitable for beginners and commonly used matlab workers to download the study.)