SVPWMthreeleve

说明：  amuzesh matlab farsi

传统的宽带信号中抑制正弦干扰的方法是采用陷波器(notch filter),为此需要精确知道干扰正弦的频率.然而当干扰正弦频率是缓慢变化时,且选频率特性要求十分尖锐时,则最好采用自适应噪声抵消的方法.下图是用一个二阶FIR的LMS自适应滤波器消除正弦干扰的一个方案。该代码实现了以下功能： 1) 借助MATLAB画出了滤波器的误差性能曲面和误差性能曲面的等值曲线； 2） 给出了最陡下降法以及LMS算法的计算公式； 3） 用MATLAB产生了方差为0.05, 均值为0白噪音S(n)，并画出某次采样得到的波形； 4） 根据 2）中的公式，并利用 3）中产生的S(n)，在 1）中的误差性能曲面的等值曲线上叠加画出了采用最陡下降法以及LMS法时H(n)的在叠代过程中的轨迹曲线； 5）用MATLAB计算并画出了LMS法时误差随时间n的变化曲线（对应S(n)的某一次的一次实现）和e(n)波形； 6）在 1）中的误差性能曲面的等值曲线上，叠加画出采用LMS法得到的100次实验中的H(n)的平均值的轨迹曲线； 7）最终对结果进行了分析，具体见压缩包的word文档。 (Wideband signal in the conventional sinusoidal interference suppression method is the use notch filter (notch filter), this requires precise knowledge of the frequency of a sinusoidal interference . However, when the interference frequency sinusoidal changes slowly , and the selected frequency characteristic requirements are very sharp , then best use of adaptive noise cancellation method . following figure is a second-order FIR LMS adaptive filter to eliminate a program sinusoidal interference . The code implements the following functions:   A ) draw with MATLAB error performance of the filter surface and the surface contour error performance curve 2 ) gives the steepest descent method and the LMS algorithm formula 3 ) generated using MATLAB variance of 0.05 with a mean of 0 white noise S (n), and draw a particular sampling waveform 4 ) based on 2 ) of the formula , and use 3 ) generated in S (n), in a ) the error performance curves superimposed on the surface contour pl)

采用matlab编程用以实现各种常见离散序列的生成(Discrete Sequence)

内部连个文件，一个是多天线阵列的方向图，一个是多天线v-blast仿真程序，对学习波束成形的朋友有用。(Even within the files, a multi-antenna array pattern, a multi-antenna v-blast simulation program, to learn useful for beamforming friends.)

6阶多项式瓦格纳威利分布的源代码，实现良好的时频聚集性和精确的时频峰估计(6-order polynomial distribution of the source code of Willie Wagner, to achieve good time-frequency clustering and accurate estimates of time-frequency peak)

用matlab中的ode45的数值解法解给定初始条件的微分方程组(using matlab command ode45 to numerically solve ODE initial conditions)

Matlab 中GUI的使用方法以及功能，具有详细的源代码，简单易懂，适合GUI的初学者。(the use of the GUI of matlab)

利用RDA和CSA算法对sar点目标回波信号进行成像，包含多个图示。(The RDA and CSA algorithms are used to image the echo signal of the SAR point target, including multiple diagrams.)

通过迭代法计算方同轴线的电势分布，进而求得内导体电流，最终计算出同轴线的阻抗(Iterative method to calculate the square coaxial electric potential distribution, and thus obtain the inner conductor current, the final calculation of the impedance of the coaxial)

Spectral analysis and correlation of stochastic discrete signals