FDTD1_1

激光散斑测量微流速，如果有散斑图，输入，给出相应的相对速度(find out the speed of laser speckle)

Implement and investigate into stochastic Galerkin methods with a special focus on tensor product methods.

读取两个文件夹中对应的图像，将两幅图像进行小波分解，修改小波系数将两幅图像的小波系数进行融合，融合后进行反变换，得到小波分解融合后的图像。(Read the two folders corresponding image, two images using wavelet decomposition, wavelet coefficients modified wavelet coefficients of the two images are fused fusion inverse transform, wavelet decomposition obtained after fusion.)

some important ip code

SOR法求解病态线性方程组的MATLAB源代码(SOR method for solving ill-conditioned linear equations MATLAB source code)

说明：  简单的傅里叶变换代码 MATLAB 新手适用(T to F )

等间距线性阵列，阵元数M=8，阵元间距d= λ /2，等幅加权，目标方位φr =0°。产生空间白噪声矢量（复高斯分布）。 设阵列信号矢量元素s(m)=exp[j mψr]，其信号幅度为1，该阵元接收机附加的高斯噪声为n(m)=nmr+jnmi，其中实虚部均为独立同分布N(0, σ2)的高斯随机数，则该通道合成信号x(m)=s(m) + n(m)，其中信噪比为： SNR = 10 lg[1/(2σ2)] = – 3 – 10 lg(σ2) (dB) (The spacing of the linear array, and the array element number M = 8, the array element spacing d = λ/2, equal amplitude weighted target azimuth φR = 0. Space generated white noise vector (complex Gaussian distribution). Let array signal vector elements s (m) = exp [j mψr], the signal amplitude, the element receiver additional Gaussian noise n (m) = nmr+jnmi which the real and imaginary parts are independent and identically distributed N ( Gaussian random numbers of 0, σ2), the channel the synthesis signal x (m) = s (m) the PPLS n (m), where SNR is: SNR = 10 lg [1/(2σ2)] =- 3- 10 lg (σ2) (dB))

曲线回归分析：直线回归、双对数回归、半对数回归、倒数回归(Curvilinear regression analysis: linear regression, double logarithmic regression, semi-logarithmic regression, countdown)

完成图像的比例缩放，可以按照需要完成对图像的大小设置 (To complete the image scaling, image size is set in accordance with the need to complete)

说明：  基于matlab的数字信号传输系统仿真，pdf文档末尾是完整的matlab代码。(Experiment of digital signal transmission system based on MATLAB)