suanlichengx

说明：  function [ret,x0,str,ts,xts]=s4(t,x,u,flag) s4 is the M-file description of the SIMULINK system named s4. The block-diagram can be displayed by typing: s4. SYS=s4(T,X,U,FLAG) returns depending on FLAG certain system values given time point, T, current state vector, X, and input vector, U. FLAG is used to indicate the type of output to be returned in SYS.

说明：  freq modulation code with demodulation

The quantum particle swarm optimization (QPSO) applies the quantum computing theory to particle swarm optimization, and thus has the advantages of both quantum computing theory and particle swarm optimization, so it has a faster convergence rate and a more accurate convergence value.

说明：  nsga-2 遗传算法，应用于ieee-33节点系统中，方便快捷，好用。(Nsga-2 genetic algorithm is applied in ieee-33 node system, which is convenient, fast and easy to use.)

使用matlab的m语言编写的自控原理中的劳斯判据。写成函数形势，课以直接调用(routh)

频率辨识开环系统传递函数，传递函数为 ，试通过正弦扫频及Bode图拟合来辨识该传递函数，写出其设计思想和详细推导过程，并给出仿真程序和仿真结果(Open-loop frequency identification system transfer function, transfer function, the sine sweep test and the Bode plot by fitting to identify the transfer function, write its design and detailed derivation and simulation program and simulation results are given)

衰落信道下的盲估计研究不同信噪比下典型相关分析(snr)

由HFSS仿出S11,S21并导出S11,S21的复数形式，利用matlab调用，就可以算了介电常数和磁导率(By S11, S21 calculate dielectric constant and magnetic conductivity )

这个程序对于学习流行学习算法的朋友很有借鉴意义，在matlab上能够运行。(This program for the popular learning algorithm friends is of great significance, to be able to run in matlab. )

自己编写的55行精短情诗代码，呈现红色背景、白窗心形图案及动态U型符号，释义“Need you !”，码农也能文艺！(55 lines fine short poems codes, showing heart-shaped background and dynamic symbol-U,meaning "Need you!")