DSG2

非常经典的软件射频通用处理和设计，麻省理工学院计算机系的博士们写的(A very classic Universal software radio processing and design, Department of Computer Science Massachusetts Institute of Technology who wrote a doctoral)

Short Term Energy is important for filtering a signal. With Short Term Energy, we can get voiced and unvoiced.

说明：  对故障数据的小波包分解与信号重构、小波包能量特征提取 暨 小波包分解后实现按频率大小分布重新排列，并进行降噪处理。(After wavelet packet decomposition and signal reconstruction, wavelet packet energy feature extraction and wavelet packet decomposition, the fault data can be rearranged according to the frequency distribution, and the noise can be reduced.)

Create linear sweep excitation.

cancer detection using wavelet

说明：  matlab使用垂直Sobel算子，自动选择阈值 [VSFAT Threshold]=edge(f, sobel , vertical ) 边缘探测 figure,imshow(f),title( 原始图像 ), 显示原始图像 figure,imshow(VSFAT),title( 垂直图像边缘检测 ) 显示边缘探测图像 使用水平和垂直Sobel算子，自动选择阈值 SFST=edge(f, sobel ,2) figure,imshow(SFST),title( 水平和垂直图像边缘检测 ) 显示边缘探测图像 使用指定45度角 Sobel算子滤波器，指定阈值 s45=[-2 -1 0 -1 0 1 0 1 2] SFST45=imfilter(f,s45, replicate ) SFST45=SFST45>=2 figure,imshow(SFST45),title( 45度角图像边缘检测 ) 显示边缘探测图像 (matlab I=rgb2gray(I0) J0=double(I) [VSFAT Threshold]=edge(f, sobel , vertical ) figure,imshow(f),title figure,imshow(VSFAT),title)

三相全桥SPWM控制逆变电路的研究 1、输入电压： ； 2、输出电压：正弦波电压，其正幅值 ； 3、负载：纯电阻性负载， ； 4、结合仿真波形和数据分析调频调压的控制原理。(Research on Three-phase Full Bridge SPWM Controlled Inverter Circuit)

压缩包中自带资源卫星的tle，用matlab读取并绘制半长轴、轨道倾角、偏心率的变化曲线，观察期变化规律，文件读取的技巧很好！！(Compressed package comes resource satellites tle, using matlab to read and draw the semi-major axis , orbital inclination , eccentricity curve , variation of the observation period , file reading skills well ! ! )

说明：  利用压缩感知对雷达进行成像， 结果显示良好(Using compressed sensing to image the radar, The results are good)

Introduction Fiber-to-the-Premises solutions today vary from high-bandwidth, symmetrical and dedicated fiber Ethernet-to-the- Home (ETTH), to traditional TDM PON, such as Gigabit PON (GPON), solutions that are asymmetrical, share bandwidth among users and are not flexible nor scalable to address various residential requirements and enterprises in one infrastructure.