gg_mle.tar

说明：  STFT在跳频信号分析中的应用，上传一个论文，供大家参考一下(STFT in signal analysis in frequency hopping applications, upload a paper for the U.S. refer to)

说明：  通信原理在matlab上的实现，关于调制解调系统的各种部分(On communication theory in matlab implementation, on the various parts of modulation and demodulation system)

Spread spectrum merupakan sistem dimana sinyal yang dikirimkan memiliki bandwidth yang jauh lebih lebar daripada bandwidth sinyal informasinya sendiri. Proses pelebaran bandwidth sinyal informasi ini dilakukan pada sisi pengirim dan disebut spreading. Sebaliknya, proses penyempitan kembali bandwidth sinyal informasi dilakukan di sisi penerima, dan disebut despreading. Pada gambar 1 berikut menunjukkan proses yang terjadi pada sistem spread spectrum.

香农能量算法用于提取心音信号的包络。同时还有一个用来对信号进行训练用的程序，主要是提取信号的特征值，以实现信号的分类识别(Shannon energy algorithm is used to extract the heart sound signal envelope. As well as a training signal is used for the procedure used mainly to extract the value of the signal characteristics in order to achieve signal classification and recognition)

Basic step-up chopper

本代码为割线法求解非线性方程组。其调用格式为[r,m]=mulGXF1(F,x0,x1,eps) 其中，F:非线性方程组；x0初始解；x1：初始解；eps：解的精度；m：迭代步数。(The code for the secant method for solving nonlinear equations. Its call format [r, m] = mulGXF1 (F, x0, x1, eps) where, F: non-linear equations x0 initial solution x1: initial solution eps: solution accuracy m: the number of iterative steps.)

说明：  信号处理，故障诊断，能量法，自功率谱，互功率谱，时域、频域求解(Signal processing, fault diagnosis, energy method, since the power spectrum, cross power spectrum, time domain, frequency domain to solve)

完全不调用matlab系统函数，编写canny边缘检测算法，适合初学者(Completely without calling matlab system function, write canny edge detection algorithm, suitable for beginners)

MATLAB HELP FUNDENMENTAL IN YOUR CODE FOR HELP MATLAB 4

华北电力大学高压直流输电HVDC系统，matlab仿真程序(North China Electric Power University HVDC HVDC system, matlab simulation program)