Lihong_buck

均匀线阵因子方向图，可以修改为不同参数下的方向图，是以极坐标的图形显示。(ULA factor direction map, can be modified for different parameters under the direction of maps, based on polar coordinates of the graphical display.)

说明：  通过matlab实现heed算法的程序源代码(Heed the algorithm by matlab implementation source code)

3GPP 系统的MIMO信道模型仿真,里面有例子,在matlab里面仿真example .mimo.m(simulation of MIMO radio channel of 3GPP)

Multi-dimensional dynamic time warping

encrypting data in an image function

baseband modulation and demodulation

这是我学习时候，我的课本上的课后习题，我把他整理出来！希望大家能有所收益！(This is my study, my after-school textbook exercises, I took him out of order! Hope that we can get any benefit!)

SAP2000软件的源程序，带有实例，可以进行静力分析、振型分析、反应谱分析、时程分析、曲屈分析、移动荷载分析、稳态分析、功能谱密度分析、静力Pushover分析、施工顺序加载分析等。(SAP2000 software source code, with examples, can be static analysis, modal analysis, response spectrum analysis and time history analysis, buckling analysis, moving load analysis, steady-state analysis, spectral density function analysis, static Pushover analysis, construction sequence load analysis.)

说明：  最优化方法中的非线性最小二乘法,用于学习最优化方法和解决实际问题(The nonlinear least square method of optimization method is used to learn optimization method and solve practical problems)

生成一个采样频率2000，由50Hz、120Hz、200Hz正弦信号以及噪声信号组成的数字信号，滤掉150Hz>f>100Hz的频率，计算并显示滤波前后的原始数据波形以及功率谱密度。(A sampling frequency of 2000, a digital signal composed of 50Hz, 120Hz, 200Hz sine and noise signals, is generated to filter out the frequency of 150Hz>f>100Hz and to calculate and display the original data waveforms and the power spectral density before and after the filtering.)