heart-sound-signals-process

说明：  利用最速下降法的3输入2使出的BP网络，可以快速的得到训练结果(Steepest descent method using 3-input 2 resorted to the BP network, the result can be trained quickly)

The Betta-Newmark program for analysising one-Degree Freedom systems

The plots of the Poynting vector might serve to show which part of the wire is mainly responsible for creating the radiated field. The movie of the modulus, |S|, does not give a clear answer, since at close distances the pointing vector reaches high values along the entire wire. The fact that |S| is high along the entire line just means that energy is shifted between the endpoints and the middle region (electric and magnetic field respectively).

说明：  利用共轭梯度法，追赶法，龙格库塔法来求解问题的源程序，适用于计算方法初学者(The source program of using conjugate gradient method, pursuit method and Runge Kutta method to solve the problem is suitable for beginners of computational methods.)

image comparison and degradation

两个灌水算法仿真程序。欢迎大家下载(Two irrigation algorithm simulation program. Welcome everyone to download)

AM、DSB 调制及解调 用matlab产生一个频率为1Hz，功率为1的余弦信源m(t)，设载波频率ωc =10 Hz， m0 = 2 ,试画出： 􀁺 AM 及DSB 调制信号的时域波形； 􀁺 采用相干解调后的 AM 及DSB 信号波形； 􀁺 AM 及DSB 已调信号的功率谱； 􀁺 调整载波频率及 m0，观察分的AM 的过调与DSB 反相点现象。 􀁺 在接收端带通后加上窄带高斯噪声，单边功率谱密度0 n = 0.1，重新解调。 (AM, DSB modulation and demodulation Matlab produce a frequency for 1 Hz, power of 1 cosine source m (t), set the carrier frequency ω c = 10 Hz, M0 = 2, try drawing out: )

VERY GOOD FOREX SYSTEM

matlab图像特征提取程序。。。图像特征统计及计算(matlab image feature extraction procedures. . . Statistics and computing image features)

基于matlab的自相关序列产生.用到了分数阶高斯噪声和Hurst参数.(Based on the autocorrelation matlab generated sequence. Used a fractional Gaussian noise and Hurst parameter.)