method

用MATLAB实现的心形动画，有助于帮助MATLAB函数的理解(Heart-shaped with a MATLAB implementation of the animation, helping to help the understanding of MATLAB Functions)

RS-code performance vs BCH-code performance in a communication system.

三电平变流器的SVPWM调制、平衡因子中点电压控制模型，运行效果好。(Three-level converter SVPWM modulation, balance factor midpoint voltage control model, good operating results.)

说明：  i am upload the matlab programme

二维数据成像利器，看波场快照、地震记录专用(Two-dimensional data imaging tool, see the wave field snapshots, seismogram special)

1）已知2N点实数序列 N=64。用一个64点的复数FFT程序，一次算出 ，并绘出频谱 。 （2）已知某序列 在单位圆上的N=64等分样点的Z变换 。用N点IFFT程序计算 ，绘出图像 。 (1) known 2N-point sequence of real numbers N = 64. With a 64-point complex FFT process, a calculated and mapped the spectrum. (2) known to a certain sequence in the unit circle on the N = 64 sub-samples of the Z transform. N-point IFFT procedures used, the mapped image.)

denoise In BayesShrink[5] we determine the threshold for each subband assuming a Generalized Gaussian Distribution(GGD) . The GGD is given by GG¾ X ¯ (x) = C(¾ X ¯ )exp¡ [® (¾ X ¯ )jxj]¯ (6) ¡ 1 < x < 1 ¯ > 0, where ® (¾ X ¯ ) = ¾ ¡ 1 X [ ¡ (3=¯ ) ¡ (1=¯ ) ]1=2 and C(¾ X ¯ ) = ¯ ¢ ® (¾ X ¯ ) 2¡ ( 1 ¯ ) and ¡ (t) = R1 0 e¡ uut¡ 1du. The parameter ¾ X is the standard deviation and ¯ is the shape parameter It has been observed[5] that with a shape parameter ¯ ranging from 0.5 to 1, we can describe the the distribution of coefficients in a subband for a large set of natural images.Assuming such a distribution for the wavelet coefficients, we empirically estimate ¯ and ¾ X for each subband and try to find the threshold T which minimizes the Bayesian Risk, i.e, the expected value of the mean square error.

constant false alarm rate(CFAR) detetion

盲源分离程序代码 用于信号处理和模态识别(Blind source separation program code for signal processing and modal identification)

说明：  三相并网逆变器双闭环控制，基于dq坐标系下采用并网电流环与电压前馈的方法对其进行稳定性控制。包含SIMULINK2012-2018所有版本(Based on dq coordinate system, the stability of three-phase grid connected inverter is controlled by the method of grid connected current loop and voltage feedforward. Include all versions of simulink2012-2018)