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A Costas loop is a phase-locked loop used for carrier phase recovery from suppressed-carrier modulation signals, such as from double-sideband suppressed carrier signals. It was invented by John P. Costas at General Electric in the 1950s. Its invention was described as having had "a profound effect on modern digital communications".

correlation programs in matlab correlation programs in matlab correlation programs in matlab

A book that is about MIMO communication.

关于图像的均衡化，绘制图像的灰度直方图，得到均衡化以后的图像(Equalization on the image and draw the image histogram, image obtained after equalization)

这个函数提供灰度拉伸功能，输入图像应当是灰度图像，但如果提供的不是灰度图像的话，函数会自动将图像转化为灰度形式。x1，x2，y1，y2应当使用双精度类型存储，图像矩阵可以使用任何MATLAB支持的类型存储。(This function provides a gray scale stretching function of the input image should be grayscale image, but if not provided, then gray image, the function will automatically be converted to grayscale image form. x1, x2, y1, y2 should use double precision storage, image matrix can store any type of MATLAB support.)

说明：  基于MATLAB的OFDM系统仿真分析 pdf格式，不错(MATLAB-based simulation analysis of the OFDM system pdf format, good)

说明：  该文件是极值算法的研究，包括一个主程序，一个最适应值程序和一个EO源程序，已通过系统仿真测试(The file is extremal algorithm, including a main program, one of the most fitness programs and a source EO has been tested by simulation)

matlab、C代码，实现图论中的大部分算法，包括kruskal、Dijkstra、prim、hamilton等 (Matlab,C code for most algorithms of graph theory.)

幅度调制解调：用两种方法实现解调包络检波和相干(Amplitude modulation and demodulation: two ways to achieve envelope demodulation and coherent demodulation)

无线通信中的经典传输损耗预测模型（walfish-bertoni）的pdf cdf的仿真程序(wireless communications transmission loss of the classic model (walfish- bertoni) pd f cdf the simulation program)