features_extraction_4files

mimo matlab code for 4-qam communication systems

计算涡旋相位，matlab画不同拓扑电荷的涡旋光束(The vortex phase is calculated and MATLAB is used to draw vortex beams with different topological charges)

说明：  审定平均电平检测器(CMLD)CFAR，适用于多目标环境下的检测和定位(detector based on the censored mean level detector constant false alarm rate (CMLD-CFAR) technique)

利用Matlab仿真软件，完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号，映射到16QAM的星座图上，同时一路信号已经被分成了实部和虚部，后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器，再加入高斯白噪声，然后通过匹配滤波器（平方根升余弦滤波器）。最后经过采样，判决，得到0、1信号，同原信号进行比较，给出16QAM数字系统的误码。(Using Matlab simulation software, as shown in Figure 1 to complete a basic digital communications systems. Signal source such as arise over the distribution of 0,1 random signal, is mapped to 16QAM constellation diagram, at the same time all the way the signal has been divided into real and imaginary parts, behind the deal with the establishment of these two signals in the basis. Real part, imaginary part of the signal, respectively, after a square root raised cosine filter, then add white Gaussian noise, and then through the matched filter (square root raised cosine filter). Finally, after sampling, the verdict has been 0,1 signal, to compare with the original signal is given 16QAM digital system error.)

说明：  是一款非常好用的matlab学习资料，希望给大家帮助(Matlab is a very useful learning materials, want to give you help)

Speech oscilloscope using matlab

JPEG2000 Standard for Image Compression Concepts, Algorithms and VLSI Architectures

模糊PID控制器的MATLAB仿真程序 模糊控制器内部原理图，以及2个输入，1个输出的隶属度函数图。 (Fuzzy PID controller MATLAB simulation program internal schematic diagram of fuzzy controller, and two inputs, one output membership function chart.)

卫星电视接收 dm500 源码，dm500 dm500(Satellite TV receiver dm500 source, dm500 dm500)

背景检测,使方法更加的优化了，更容易接受学习，使读者容易接受(background detection)