计算功率谱密度PSD的源代码 Matlab

Comparison of performance for 2-PPM and 2-PAM under two pulse shapes, Gaussian Pulse and Hermit Pulse with Three scenarios are considered (5, 20, and50 users).

DSB双边带调制，相干解调和包络检波的对比，以及信号输出的频谱(DSB Double Sideband modulation, coherent demodulation and envelope detection of the contrast, and the signal output spectrum)

层次性EM算法 VASCONCELOS，(hierarchy EM algorithm VASCONCELOS,)

模拟介质光栅衍射光场行为，不同角度入射，得到不同的衍射花样。(simulation grating diffrcation)

PQ控制,PV控制，内部有Matlab仿真图形(PQ control, PV control, internal Matlab simulation graphics)

基于S变换的短时电能质量扰动检测方法，从S变换的结果S模矩阵及S复矩阵中提取出所需数据并以此来对各种扰动情况下的电压暂降的幅值、相位跳变、持续时间和谐波含量进行分析(Disturbance detection method based on the results of short-term power quality S transform from S Mode S transform matrix and complex matrix S to extract the required data and use it to various disturbances in case of voltage dips in amplitude, phase jump variable, duration and content of harmonic analysis)

目录 1.图像反转 2 2.灰度线性变换 2 3.非线性变换 4 4.直方图均衡化 5 5. 线性平滑滤波器 6 6.中值滤波器 7 7.用Sobel算子和拉普拉斯对图像锐化： 8 8.梯度算子检测边缘 9 9.LOG算子检测边缘 11 10.Canny算子检测边 缘 12 11.边界跟踪 （bwtraceboundary函数） 13 12.Hough变换 14 13.直方图阈值法 16 14. 自动阈值法：Otsu法 18 15.膨胀操作 19 16.腐蚀操作 20 17.开启和闭合操作 21 18.开启和闭合组合操作 22 19.形态学边界提取 24 20.形态学骨架提取 25 21.直接提取四个顶点坐标 26 22.文件打开窗口 27 (Contents 1 image reversal 22 23 gray linear transformation. Nonlinear transformation 44. Histogram equalization 55 linear smoothing filters 66. Median filter 77. Sobel operator and Rapp Las Image Sharpening: 88. gradient edge detection operator 9 9.LOG edge detection operator 11 10.Canny count of edge detection 1211. the border tracking (bwtraceboundary function) 1413 13 12.Hough transform histogram. threshold Law 1614 automatic thresholding method: Otsu 1815 expansion operation 1916. corrosion operation 2017. opening and closing operation of 2118. combination of opening and closing operation 2219. morphology boundary extraction 24 20 morphological skeleton extraction 2521 direct extraction of four vertex coordinates 2622 File Open window 27)

apm开源飞控，供无人机飞行器的爱好者研究(APM source control, for lovers of unmanned aircraft )

关于maltab一些实用程序例子:菜单，柱型图，照明方式，除法计算器，环境效果 (Some utilities on maltab examples: menu, cylindrical map, illumination, calculator division, environmental effects)

sevenlayer optical filter comparision the analytical method with reflections