max alpha

一组视频水印的Matlab源代码，在Matlab可直接运行。有很强的参考价值。(a group of video watermarking Matlab source code in Matlab can be directly run. A strong reference value.)

比较欧拉公式与matlab的ode方法解微分方程的不同(Comparison of the Euler formula for the ode with matlab different method to solve differential equations)

比较经典的matlab的电力系统潮流计算程序(more classic Matlab power flow calculation procedures)

50赫兹直流逆变电源MATLAB仿真 矢量控制(50 Hz DC power inverter MATLAB simulation vector control)

说明：  对故障数据的小波包分解与信号重构、小波包能量特征提取 暨 小波包分解后实现按频率大小分布重新排列，并进行降噪处理。(After wavelet packet decomposition and signal reconstruction, wavelet packet energy feature extraction and wavelet packet decomposition, the fault data can be rearranged according to the frequency distribution, and the noise can be reduced.)

说明：  无功功率分离谐波成分和基波成分，采用数学形态学滤波器作为低通滤波(Reactive power components of the separation of harmonic and fundamental components, the use of mathematical morphology filter as a low-pass filter)

设计一CQMFB，低通滤波器H_0 (z)来自一半带滤波器。该半带滤波器的长度为47，通带截止频率ω_p=0.42π，试给出H_0 (z)，H_1 (z)，G_0 (z)，G_1 (z)的幅频响应，单位抽样响应并画图。试着产生一信号，它由两个正弦加白噪声组成，一个在低频，一个在高频，正弦的频率及和白噪声的信噪比自己给定。试用所设计的滤波器组对该信号进行分解和重建。比较重建后的效果，并对结果继续进行分析。(Design a CQMFB, low pass filter H_0 (z) the half-band filter. The length of the half-band filter 47, passband cutoff frequency ω_p = 0.42π, try to give H_0 (z), H_1 (z), G_0 (z), G_1 (z) of the amplitude-frequency response, the unit sample response and Paint. Try to generate a signal that consists of two sinusoidal composition plus white noise, a low frequency, a high frequency in the signal to noise ratio, frequency and sine and white noise of its own given. Trial designed filter group that signal decomposition and reconstruction. Results were rebuilt, and the results continue to be analyzed.)

说明：  三电平逆变器的建模，可以用于二极管钳位型三电平主电路的设计，采用的是SVPWM算法(Modeling of three level inverter)

许多重要的机械系统平稳运行机制下(负载),但许多观察到的症状在某种程度上取决于条件在系统负荷和/或环境条件。因此状态监测的一个了这类系统应该有一些可能的症状观察到一个标准的荷载工况。(Many critical mechanical systems operate in a non-stationary regime (load ), and many observed symptoms of its condition depend in a some way on a system load and/or environmental conditions. Hence the condition monitoring of a such systems ought to have some possibility of rescaling of observed symptoms to a standard load condition. This papershows such a possibility of a symptoms rescaling in application to multidimensional vibration condition monitoring. It is shown on some real example of vibration condition monitoring, that rescaling of symptoms can make more reliable theassessment of current system condition, as well as its prognosis.)

MCM2014A基于元胞自动机的MATLAB程序,适用于大部分时间，空间离散的数学问题(MCM2014A MATLAB based on cellular automata, suitable for most of the time, space discrete math problems)