lab2

说明：  LDPC编码经过AWGN信道后的高斯消元法的译码过程的MATLAB仿真(LDPC codes through AWGN channel Gaussian elimination method, after the decoding process of MATLAB simulation)

说明：  对MFO的exploration和exploitation进行改进，提高算法效率(Improved MFO exploration and exploitation to increase algorithm efficiency)

说明：  k-均值聚类算法c语言版，经验证测试是可以运行

—Series capacitors (SCs) are installed on long transmission lines to reduce the inductive reactance

卡尔曼滤波(Kalman Filter)的Matlab免费程序库，里面有许多源程序(Kalman filter (Kalman Filter) of the Matlab free library, which has many source code)

In a normal communication channel, it is often desirable to concentrate the information in as narrow a region of the frequency spectrum as possible in order to conserve available bandwidth and to reduce power. The basic spread spectrum technique, on the other hand, is designed to encode a stream of information by spreading the encoded data across as much of the frequency spectrum as possible. This allows the signal reception, even if there is interference on some frequencies. While there are many variations on spread spectrum communication, we concentrated on Direct Sequence Spread Spectrum encoding (DSSS). The DSSS method spreads the signal by multiplying it by a chip, a maximal length pseudorandom sequence modulated at a known rate. Since the host signals are in discrete-time format, we can use the sampling rate as the chip rate for coding.

绘图，其中包含了源代码，是M文件，还有PPT的相关教程(Drawing, which contains the source code, is M-file, as well as the related tutorial PPT)

this code is about ordfs and write whit matlab.

makestereofig is a standalone script for converting .fig files containing 3D Cartesian plots of z as a function of x and y to .jpg images of the same plot in anaglyphic (red-cyan) stereo. The compressed archive contains the top level script (makestereofig), an ancillary function (plotdisplay2), and a demo .fig file containing a plot of data and a fitting function. The algorithm is very simple and users are encouraged to tweak!

利用MATLAB实现2ASK信号的调制解调，其中振幅键控信号随机产生。(Using MATLAB realize modem 2ASK signal, wherein the amplitude shift keying signal is generated randomly.)