PWM_IGBT

matlab file is use to just liquild volumn, now need you to help check it.

说明：  杆件振动分析 有限元程序 二维图 三维图都有。 (Pole vibration analysis of finite element program.)

example matlab code for character recognition

K均值图像分割，读入彩色图片，输出区域分割后的图片(K-means image segmentation, read full-color photographs, the output image after the region segmentation)

三电平二极管钳位拓扑结构的仿真，对多电平变换器拓扑结构有初步了解，适合新手学习。(Simulation of three-level diode-clamped topology, multi-level converter topologies have a preliminary understanding, suitable for beginners to learn.)

说明：  快衰落多输入多输出信道中，无信道状态信息的酉空时调制。属于信道发射和接收两端均无信道状态信息的非相干空时码。程序包含一个主程序和一个酉空时信号产生子程序，并给出误比特率。(Unitary space-time modulation without channel state information in fast fading MIMO channels. It belongs to the incoherent space-time code with no channel state information at both ends of the channel transmitting and receiving. The programs include a main program and a unitary space-time signal generation subroutine, and gives the bit error rate.)

说明：  Segunda parte de inteligencia artificial

Basic String Encryption.

华中科技大学现代控制理论Matlab问题华中科技大学现代控制理论 Matlab问题(Modern Control Theory, Huazhong University of Science and Technology, Huazhong University of Science Matlab problem Matlab problems of modern control theory)

阵列信号处理的ESPRIT的多种衍生算法：TAM算法，矩阵束的ESPRIT算法，实值波束空间ESPRIT算法，实值空间ESPRIT算法，总体最小二乘ESPRIT算法，最小二乘ESPRIT算法。(Array signal processing algorithms derived from a variety of ESPRIT: TAM algorithm, matrix beam ESPRIT algorithm, the real value of beam-space ESPRIT algorithm, ESPRIT algorithm in real space, total least squares ESPRIT algorithm, least squares ESPRIT algorithm.)