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用MATLAB编写实现图像几何校正的程序。采用控制栅格的方法。(Prepared using MATLAB for Image geometry correction procedures. Using the control grid method.)

该程序代码为结构拓扑优化设计实例，是对飞机耳片结构的优化(The code for topology optimization of the design example, the optimization of the structure of the aircraft hanger)

速度反馈异步感应电机调速系统的matlab仿真模型，mdl文件(Velocity feedback asynchronous induction motor speed control system of the matlab simulation model, mdl file)

OFDM channel Using a large number of parallel narrow-band subcarriers instead of a single wide-band carrier to transport information l Advantages » Very easy and efficient in dealing with multi-path » Robust again narrow-band interference

说明：  随着信息容量的增加和频率资源的稀缺，为提高单位频带利用率，在微波通信系统中越来越多地采用多电平多相位的复杂信号调制方式，尤其是正交幅度调制(QAM)得到了大量的应用，从早期的4QAM到今天的16QAM。高阶QAM调制大容量数字微波通信系统为了保证服务质量，降低误码率，(long with the increase of information capacity and frequency resource scarcity, for improving the utilization ratio, unit of microwave communication bandwidth used more and more in the system of multilevel much phase modulation method complex signal amplitude modulation )

mpptsimulation 光伏电池mppt最大功率跟踪仿真(Photovoltaic cells mppt maximum power point tracking simulation)

无功优化的最优潮流程序，可以自行替换ieee数据(Optimal Power Flow)

This file is the programs of (chapter 2) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related to shadowing effects. It helps you to simulate wireless shadowing effects.

对加噪信号进行奇异值分解。对奇异值计算其熵特征(Plus noise signal on the singular value decomposition. Calculate the entropy for the singular value feature)

无线信道建模很复杂，不同场景下的模型差异较大，这是一本讲解无线信道建模方法的经典书籍配套的matlab例程(Channel modeling is complex models under different scenarios are quite different, which is a classic way to explain the channel modeling books matching matlab routines)