mfc

Fast mean of rectangular subarrays (MEX)

用中心差分法计算输入地震动的位移时程曲线，该函数仅为示例用，在计算短周期结构的反应时，可能不准确，需要减小时间间隔 ( central difference method)

物质点法的MATLAB计算程序 这是本构模型课上的作业(MATLAB calculation program material point method which is the job of the constitutive model lesson on)

一个基于QR分解的并行原-对偶内点算法，给予matlab，读入数据成为xml文件。 (QR decomposition based on parallel the original- dual interior point algorithm, given matlab, read into the data become a xml file.)

可以实现机械EMD经验模态分解，提取特征量并利用神经网络进行模式识别故障类型(The empirical mode decomposition of mechanical EMD can be realized, feature quantity is extracted and neural network is used to identify the type of fault.)

说明：  对心音信号进行BT功率谱估计及切比雪夫1滤波的matlab程序，可粗略提取心音频率(PSD BT chey1 matlab)

本实验是IIR滤波器设计-巴特沃斯滤波器设计，并通过实例检验得到了很好的滤波效果(IIR filter design, Butterworth filter has been designed and tested by example with excellent results)

刘凤君老师的书，现代逆变技术及应用，主要讲解了拓扑结构，调制机理，控制机理以及实例分析。(Liu Fengjun teacher' s book and modern inverter technology applications, mainly on the topology, modulation mechanism, control mechanism as well as instances of analysis.)

本代码在matlab环境下运行，从而出现日历和时间。(Calendar and time display)

说明：  线性调频信号的匹配滤波器的设计与实现第二款(LFM matched filter design and implementation of paragraph)