Signal_and_Systems_Lab_1

this is matlab codes

AWGN信道下，基于16QAM的TCM编译码(AWGN channel, 16QAM-based TCM encoding and decoding)

avi视频转换为jpg序贯图片，应用于matlab2014a进行图像处理。(Avi video converted to JPG sequential images, image processing is applied to matlab2014a.)

LTE 上行干扰协调技术的研究.pdf (Research LTE uplink interference coordination techniques)

图像中值滤波的改进算法 频域中的图像去噪算法 matlab实验(matlab experiments )

matlab的两个小球碰撞的模拟程序，很简单的。平时没事瞎编的。(Two small ball collision matlab simulation program, very simple. Usually nothing fabricated.)

在科研中，大量时间花在统计年鉴的搜集上，例如找《中国城市统计年鉴》中2000多个市，要对分散的八个城市群找对应的数据，如果每次筛选会花费大量时间，如果做好excel表头，把对应的城市写上去会在多个文件多个工作组查找满足要求的数据，直接按需要保存成excel，进行后续分析。(In the research, the amount of time spent on the Statistical Yearbook of the collection, for example, to find " China City Statistical Yearbook" in more than 2000 cities and want to find a group of eight cities scattered corresponding data, if each screening will spend a lot of time, If you do excel header, the corresponding write up the city will look to meet the requirements of data in multiple files multiple workgroups, saved directly as needed to excel, for subsequent analysis.)

瑞利信道下四节点单中继网络中采用分层调制的误码率(the BER of hierarchical modulation in four node one rayleign networks in ralyleign fading channel )

雷达波门内的波束通常是有编号的，本程序通过检索波束索引，读取波门内所有回波信号(Radar beam is usually a door number, the program retrieves the beam through the index, read the wave door all echo signals)

计算两个晶体方向之间的夹角，并画图，适合初学者(Calculate the angle between two crystallographic directions, and drawing for beginners)