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这是关于PPM信号解调方法的研究，有硬判决和软判决程序。(This is on the PPM signal demodulation method, a hard decision and soft-decision procedure.)

THIS IS A FILE FOR ELECTRICAL AND ELECTRONICS ENGINEERING FOR RESEARCH

这是一个节点潮流计算算法程序，有兴趣的朋友可以看看(This is a node flow calculation algorithm, interested friends can see)

说明：  matpowe7.0,Open source software, no modified version downloaded from the official website,the new MOST can calculate timing OPF,but the DC model may not be accurate

接收机qpsk解调的Matlab仿真程序(QPSK demodulation receiver Matlab simulation program)

已知采样频率80000，通带衰减0.5阻带衰减45 通带截止频率4000，阻带截止频率20000，用双线性变换法设计数字低通滤波器 (Known sampling frequency 80000, attenuation in the passband stop-band attenuation 45 0.5 Passband cutoff frequency of 4000, 20,000 stopband cutoff frequency, using bilinear transform design digital low-pass filter)

matlab 实现语音信号经过编码后经过瑞利信道的仿真(The signal is coded and thenpass the Rayleigh channel is simulated by matlab)

计算均值以及均方值，很不错的代码，希望对大家的学习有所帮助。(Compute the Mean and Square)

利用MATLAB软件，通过编程来计算计算卫星坐标，通过输入相关参数之后就可以给出卫星的坐标(Using MATLAB software, programmed to calculate the coordinates of the satellite is calculated by the following input parameters can be given the coordinates of the satellite)

计算Einstein场方程的mathematica程序包。输入变量和度规。自动计算里奇张量和曲率张量。( calculate Ricci Tensor and the Curvature Scalar)