solve-differential-equations

用MATLAB实现了最小二乘法，并有较为详尽的注释，望各位赐教(Implemented with MATLAB least squares method, and have more detailed comments, hope you can enlighten)

对16进制的QAM调制信号的matlab仿真 已完美运行通过(On the 16-band QAM modulated signal matlab simulation has been run through a perfect)

说明：  工程实际中的许多优化问题是多目标的优化设计问题。通常情况下多个目标是处于冲突状态的,不存在一个最优设计使所有的目标同时达到最优,一个目标性能的改善,往往以其它一个或多个目标性能的降低为代价。无论采用自适应遗传算法还是其它在标准遗传算法基础上经过改进的遗传算法,如果采用加权组合法等将多目标转化为单目标的处理方法,就无法充分发挥遗传算法的优势。如果把遗传 算法与适用于多目标处理的几此协方法相结合,就能完全发挥遗传算法在多目标优化设计中的作用。(Many optimization problems in engineering practice are multi-objective optimization design problems. Generally, multiple goals are in conflict. There is no one optimal design to achieve all goals simultaneously. The improvement of one goal's performance is often at the expense of the performance of one or more other goals. Whether adaptive genetic algorithm or other improved genetic algorithm based on standard genetic algorithm is adopted, if weighted combination method is adopted to transform multi-objective into single-objective processing method, the advantages of genetic algorithm cannot be fully utilized. If the genetic algorithm is combined with several cooperative methods suitable for multi-objective processing, the role of genetic algorithm in multi-objective optimal design can be fully exerted.)

This file is the programs of (chapter 2) of book (Modeling the Wireless Propagation Channel a Simulation Approach with MATLAB) which is related to shadowing effects. It helps you to simulate wireless shadowing effects.

discrete wavelet transform

基于MATLAB的粒子群优化算法程序设计，经典算例。(MATLAB-based particle swarm optimization program design, the classic example.)

Matlab function: to show the common sense of anything so i can see if i can download from this site, and thank you a lot.

选择13级移位寄存器的初始数据，用移位加反馈的方法生成级数为3~13的m序列(The selection of the initial data of 13 level shift register, series is generated by shift plus feedback method for 3 ~ 13 m sequence )

ofdm在awgn信道下的仿真程序ber，snr图形(In awgn channel ofdm simulation program ber, snr graphic)

基于simulink的三相交流电压的整流电路，完全自己编写，非常经典。(Simulink three-phase AC voltage of the rectifier circuit, fully prepared, very classic.)