grad_conj_md

matlab短时傅里叶变换例程，绘出等高线图形(matlab short time Fourier transform routines, draw contour graph)

在matlab r2010a环境下编写的newton-lagrange算法，可以求解约束优化问题，程序返回目标函数值及拉格朗日乘子。(In matlab r2010a environment prepared newton-lagrange algorithms can solve constrained optimization problems, the program returns the value of the objective function and Lagrange multipliers.)

PSO BASED MPPT CONTROLLER FOR SOLAR PANEL

分析了BFSK的性能及原理，并利用matlab仿真实现其误码率等信息。写成word文档，后面附有源程序。(BFSK performance analysis and principle, and use matlab simulation to achieve its bit error rate information. Word document written in the back with a source.)

用于分析输入信号的瞬时频率的程序，可通过调用改程序观察信号频率随时间的分布情况(used to analysis the instans frequency of the signal)

说明：   基于matlab 的叠加高斯白噪声的正弦信号频谱分析，给定正弦函数x=sin(2πf0n/N+π/3)+sin(2πf1n/N+π/4)，设定f0.f1的值，加了噪声之后做快速傅里叶变换，在matlab中分析其频谱，验证是否与f0,f1的值符合。再变换N值，看随着N值的变化对应点是否符合及有何变化。(Matlab based on the superposition of Gaussian white noise sinusoidal signal spectrum analysis, given the sine function x = sin (2蟺f0n/N+蟺/3)+sin (2蟺f1n/N+蟺/4) set value of f0.f1, do a quick noise Fourier transform to analyze the spectrum in matlab, verify that with f0, in line with the value of F1. Transform the value of N, see change as the value of N corresponding points of compliance and what changes.)

coode matlab for PSO

MaxLloyd quantization

说明：  对机械振动信号用三维能量谱进行分析。。。。。。。。。。。(Mechanical vibration signals of three-dimensional power spectrum analysis. . . . . . . . . . .)

图像截图完成一个简单的多媒体应用程序，包含：多媒体信息的获取、处理、展现三个基本过程。(this is a snapshot code)