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用matlab编写的newmark－belta法求解结构动力响应(Prepared using matlab newmark-belta method for structural dynamic response)

轴承故障诊断.rar轴承故障诊断.rar(damage detection)

一维自适应算法，用于噪声抑制，可以拓展成二维图像噪声抑制，matlab编写，希望对大家有帮助。(a peacekeeping adaptive algorithm for noise suppression, can be developed into a two-dimensional image noise suppressor, Matlab prepared, and I hope to be helpful.)

这是一个基于空时分组编码的MIMO_OFDM通信系统的仿真设计。此系统包括QPSK调制解，IFFT调制，空时编解码，基于训练符号的信道估计等通信模块。 (This is based on space-time block coding MIMO_OFDM communication system simulation design. This system includes the QPSK modem, IFFT modulation, space-time coding and decoding, symbol-based channel estimation training and other communication module.)

数字调制解调，包含数字调制程序和解调程序。(Digital modulation and demodulation, including digital modulation and demodulation process procedures.)

MATLAB遗传算法，解决函数求极值问题。(MATLAB genetic algorithm to solve the problem Function Extremum.)

矢量控制是目前交流电机的先进控制方式，一般将含有矢量变换的交流电机控制都称 之为矢量控制，实际上只有建立在等效直流机模型上，并按转子磁场准确定向的控制，电机才能获得最优的动态性能。 矢量控制的基本思路是以产生相同的旋转磁动势为准则，将异步电机在静止三相坐标系上的定子交流电流通过坐标变换等效成同步旋转坐标系上的直流电流，分别加以控制，以达到直流电机的控制效果。(Vector control is an advanced control method of AC motor at present. Generally, vector control is called vector control. In fact, only based on the equivalent DC motor model and accurately oriented control according to the rotor magnetic field, can the motor obtain the optimal dynamic performance. The basic idea of vector control is to generate the same rotating magnetomotive force as the criterion. The stator AC current of asynchronous motor in the static three-phase coordinate system is converted into DC current in the synchronous rotating coordinate system by coordinate transformation, and then controlled separately to achieve the control effect of DC motor.)

雨流计数和疲劳寿命估算,用于统计自己获取的信号，得到载荷谱，进行疲劳计算(Rain flow count and fatigue life estimate, used to calculate the signal obtained by their own, get the load spectrum, fatigue calculation)

说明：  最为改进的CEEMDAN算法，有去噪，分离信号功能。(The most improved CEEMDAN algorithm with denoising and signal separation functions.)

说明：  matlab的代码关于fft的仿真程序,直接的出波形(fft matlab code on the emulator, directly from the waveform)