zigzager_inverse

第15章 常微分方程的初值问题.zip。是从书中光盘里直接拷贝的代码，放在这里，与大家共享，共同交流，希望对大家有帮助。(Chapter 15 of the ordinary differential equation initial value problem)

该程序仿真了空时自适应处理STAP里的降维算法3dt，并与最有空时处理的结果进行了比较(The program simulation results were compared with the dimensionality reduction algorithm in the STAP 3dt, and with the most free space-time adaptive processing)

2014年全国数学建模A题相关资料 。欢迎下载。(A mathematical modeling problem related information. Welcome to download)

With 2 Hidden Layer Backpropagation Using Matlab

说明：  格子boltzmann二维D2Q9模型模拟poiseuille flow(lattice boltzmann method with d2q9 model to simulate poiseuille flow)

该代码是粒子滤波实现弱小目标的检测前跟踪。(The code is particle filter to implementation the weak target track before detection.)

说明：  涂层物质中的电磁脉冲特性与雷达截面减缩，涂层物质中的电磁脉冲特性与雷达截面减缩(Radar Cross Section Reduction and Characteristic of Electromagnetic Pulse in Antiradar Coating M aterial )

LDPC编码算法, Create R = 1/2 low density parity check matrix M : Number of row N : Number of column method : Method for distributing non-zero element {0} Evencol : For each column, place 1s uniformly at random {1} Evenboth: For each column and row, place 1s uniformly at random noCyle : Length-4 cycle {0} Ignore (do nothing) {1} Eliminate onePerCol: Number of ones per column H : Low density parity check matrix(LDPC_code source Create R = 1/2 low density parity check matrix M : Number of row N : Number of column method : Method for distributing non-zero element {0} Evencol : For each column, place 1s uniformly at random {1} Evenboth: For each column and row, place 1s uniformly at random noCyle : Length-4 cycle {0} Ignore (do nothing) {1} Eliminate onePerCol: Number of ones per column H : Low density parity check matrix)

建立一个实测信号的样本，这里我建立四个随机信号的样本，因为方便显示，蓝色信号为有用信号（正弦信号），黑色的四个信号是随机信号分别与正弦信号叠加形成的实测信号，最后红色的信号为样本的均值信号，即为时域同步平均效果下的信号。(A sample of the measured signal, I created four random signal samples, because it' s easy to display, blue signal is useful signal (sinusoidal signal), four black signal is a random signal with sinusoidal signal is superimposed on the formation of the measured signal. the final red signal is the mean of the sample signal, that is, the average effect of time-domain synchronous signal.)

Script for computing the SNR improvement in Rayleigh fading channel with Maximal Ratio Combining