NRchaoliu

说明：  对一个小球的运动模拟，可以很好地模拟其轨迹，界面清晰，操作简单(A small ball of motion simulation that can simulate its trajectory, clear interface, easy operation)

MATLAB插值与拟合（线性拟合函数：regress() 多项式曲线拟合函数：polyfit( ) 多项式曲线求值函数：polyval( ) 多项式曲线拟合的评价和置信区间函数：polyconf( ) 稳健回归函数：robust( ) 向自定义函数拟合 ）(MATLAB interpolation and fitting (linear fitting function : regress () function polynomial curve fitting : polyfit () polynomial curve function : polyval () polynomial curve fitting and evaluation function confidence interval : polyconf () function Robust Regression : robust () function to define fitting))

用于信号降噪，先用wbmpen得到降噪时的全局阈值，再用得到的阈值降噪(signal donising)

针对MUSIC算法在进行信号波达方向(DOA)估计时谱峰搜索运算量大的问题,提出了一种基于FFT多波束算法与MUSIC算法的联合DOA估计方法。该方法采用FFT多波束算法形成多个波束,近似估计信号DOA,获得对应波束指向,再利用MUSIC算法实现对信号DOA的精确估计。这样就只需在该波束指向对应的空域范围内搜索,减小了DOA估计的运算量。(MUSIC algorithm for performing signal DOA (DOA) estimates peak search operation when big problem, a joint DOA estimation method based on FFT algorithm and multi-beam MUSIC algorithm. The method uses FFT algorithm for multi-beam forming multiple beams, approximate estimate signal DOA, obtain the corresponding beam pointing, reuse MUSIC algorithm for accurate estimation of the signal DOA. This will only search within the beam direction corresponding airspace, reducing the amount of computation DOA estimates.)

说明：  Smith预估控制仿真，大滞后系统适用，文件中还和PID控制器的控制效果相比较，可供参考(Smith predictive control simulation)

simulation of a two level inverter using svpwm

拉格朗日插值，进行5,10,20点插值，验证插值具有振荡现象(Lagrange interpolation for 5,10,20 point interpolation, interpolation with oscillation phenomenon verification)

对仿真信号进行小波分解，进行小波阈值降噪处理(Wavelet Denoise)

本程序是用于信号频谱分析的实验程序。 主要功能是进行信号的幅值谱计算；同时可完成在选定范围内谱峰的精确频率、幅值和相位计算（计算结果为cos相位）。( This procedure is used to test the program signal spectrum analysis. Main function is to calculate the signal amplitude spectrum the same spectral peaks can be completed within the selected range of precise frequency, amplitude and phase calculation (calculated as cos phase).)

line detection using hough transform