twentyfour

Poles and zeros for a low pass filter

介绍了MSK调制解调仿真程序，加入了中频载波，统计了系统的性能。(Introduction of the MSK modulation and demodulation simulation program, joined the IF carrier, the statistical performance of the system.)

卷积码的编码与维特比译码的相关仿真，比较它们的性能(Convolutional codes of coding and Viterbi decoding of the relevant simulation to compare their performance)

MLP 1-layer Nueral Network

information theory n coding

这是一个用鼠标划光滑曲线的函数，利用matlab编写(This is a smooth curve with the mouse draw a function of the preparation of the use of matlab)

本程序用来求有向网络中的最大流和最小费用的问题。这里最小费用是在可能有多个最大流的基础上优化得到的。故前提条件是最大流，如果没有没有最大流，可以不运输，成本为0，那就没有意义了。(This program used to beg for the maximum flow to the network and the minimum cost. Here is the minimum cost in May have multiple maximum flow based on optimization get. So premise condition is maximum flow, if no no maximum flow, can not transport, the cost of 0, that is no sense. )

说明：  电力系统拓扑分析、孤岛数，关联矩阵法把主接线的节点和母线的每一进出线连接点作为拓扑图的节 点，把开关元件作为拓扑图的支路，建立节点．支路关联矩阵表示电网的基本拓 扑结构。然后定义矩阵“与．或’’乘法运算，利用连通性的传递性质实现对电力 网络结构的辨识。(In the incidence matrix method, the node of the main connection and the connection point of each incoming and outgoing line of the bus are taken as the node of the topology diagram, and the switching element is taken as the branch of the topology diagram to establish the node.The branch correlation matrix represents the basic topology structure of the power grid)

实现QPSK调制方式 通信matlab仿真中发送端的四相载波调制 (QPSK modulation to achieve communication matlab simulation in the sender' s four-phase modulation)

说明：  计算hurst_exponent的matalb程序 用于检测时间序列的非线性特性(Procedures for calculating hurst_exponent of matalb time series for nonlinearity detection)