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this source code is eacfault matlab

FEM膜单元模态、静力计算，matlab程序(Calculation of FEM membrane element modal, static, matlab program)

各种滤波器的设计，包括高斯低通滤波器。hilberrt带通滤波器，插值滤波器等等。(Various filter design, including Gaussian low-pass filter. hilberrt band-pass filter, the interpolation filter and so on.)

基于混沌的模拟退火算法，采用偏最小二乘法，用蒙特卡洛模拟的方法计算美式期权的价格以及基本描述。( Chaos-based simulated annealing algorithm, Partial least squares method, Monte Carlo simulation method of calculating the American option price and basic description.)

说明：  matlab实例，介绍了常用的算法，具体功能参照具体文本说明。(matlab instance, introduced the commonly used algorithms, the specific function of a specific reference to the text description.)

digital signal processing

电机转子断条时，使用ansoft maxwell建立的异步电机断条模型，数据需要matlab处理(Motor broken rotor bars, using the model of the induction motor broken bars created ansoft maxwell, data need matlab processing)

说明：  修正的music算法，前后向空间平滑算法的特殊形式(Amended music algorithm, before and after spatial smoothing algorithm for the special form)

关于控制算法的分析的matlab教程，很适合常用的控制问题，例如PID算法(about the analysis of control problem based on MATLAB)

直线阵自然指向性仿真,先根据设定的角频率仿真单频信号A sin(ωt)；再根据阵元间距、入射角度计算得各阵元相对参考阵元接收的信号的时延 τ (dsin(θ))/c。 假设等间隔N基元线阵，入射信号是平面波，那么阵元输出信号为：S_n (t) A sin(ωt+nφ)；其中 φ 2πfτ 为相邻阵元接收信号间的相位差；再将基阵各元输出求和，取最大值max,就得到输出幅度；以入射角为横坐标，幅度为纵坐标作图得直线阵自然指向性。 (Linear array directivity simulation)