duffing

说明：  文章：利用三次样条函数计算开挖体积，有matlab代码。(Article: the use of cubic spline function calculated excavation volume, there is matlab code.)

some exercices with matlab

- Stone column play important role in infrastructure, improving soft soil. The behaviour of stone column, however, remains far well understood

利用matlab软件实现通信中的低通滤波器，将信号进行低通滤波，滤出我们所需要的信号(Using matlab software to achieve low-pass filter in the communication, the signal low-pass filter, filter out the signals we need)

振动信号时域、频域、倒频域、包络、时频分析，真实可靠，童叟无欺(Vibration signal in time domain, frequency domain and inverted frequency domain, envelope, time-frequency analysis, true and reliable, fair trade)

matlab的指令大全，供学习和使用matlab的同学参考。(matlab command Daquan, matlab for students to learn and use for reference.)

一种基于多文档得图像合并技术，经典的灰度共生矩阵纹理计算方法，esprit算法对有干扰的信号频率进行估计。( Based on multi-document image obtained combining technique, Classic GLCM texture calculation method, esprit algorithm signal frequency interference can be assesse.)

说明：  频谱图，做工程振动，频谱分析。绝对可运行！(spectrogram in vibration analysis)

处理心电信号中的基频漂移和工频干扰的一种算法。(a resolution to solve the baseline drift and line-frequency )

说明：  基于MATLAB实现各种图片的读取显示及滤波功能,已经编译成功(Achieve a variety of images based on MATLAB to read display and filtering has been successfully compiled)