snake

TOC - identification and detection of Table of Contents

MATLAB 牛顿下山法的一个小程序，原理就不详细说了。因牛顿迭代法受初值选取的限制，为防止迭代发散，对迭代过程再附加一项要求:|f(x(k+1))|<|f(x(k))|,将牛顿法迭代的结果:x(k+1) =x(k)-f(x(k))/f (x(k))和前一近似值x(k)适当加权平均做为新的改进值:x(k+1)=u*x(k+1) +(1-u)*x(k),其中u(0<> 迭代时u取1开始，逐次减半计算，直至附加要求符合为止。实例计算中x(k)=x(0)不变，只更新u和x(k+1)，直至:|f(x(k+1))|<|f(x(k))|（即|f(x(1))|<|f(x(0))|)，然后更新下山因子为u=1,继续以牛顿法迭代。(MATLAB Newton-down a small program, the principle is not explained in detail. Newton iteration by the initial value of the selected limit, in order to prevent additional iterative divergence, the iterative process a request: | f (x (k+1)) | < | f (x (k)) | Newton iteration Results: x (k+1) ' = X (k)-f (x (k))/f' (x (k)) and a previous approximation x (k), appropriately weighted average as a new improved value: x (k+1 ) = u* x (k+1) ' + (1-u)* x (k), where u (0 < u> iteration take successive calculated at 50 until the additional requirements found so far. examples of calculation of X ( k) = x (0) unchanged profile u and x (k+1, hungry) until: | f (x (k+1)) | < | f (x (k)) | (i.e. | f (x (1)) | < | f (x (0)) |), then profile downhill factor for u = 1, to continue to Newton iteration.)

说明：  单周期控制的软开关无桥升压PFC电路的研究(Soft Switch One Cycle Control bridgeless boost PFC circuit)

this is a powerfull code in mix and hidden picture in another pic for staginography

利用MATLAB写的蹦球游戏，希望大家在学习的同时可以放松下，顺便学学matlab(The use of MATLAB in bouncing ball Writing Game, I hope everyone in the study can relax at the same time, the study incidentally learn matlab)

this matlab code simulate about signal in wimax

基于图像4个方向通道的滤波，增强小目标与周围背景的对比度(4 direction of the channel-based image filtering, enhanced small target contrast with the surrounding background)

进行逐步线性回归，阐述了负荷预测的应用研究,通过虚拟阵元进行DOA估计，最小均方误差（MMSE）的算法，添加噪声处理，相控阵天线的方向图（切比雪夫加权），直线阵采用切比学夫加权控制主旁瓣比。( Stepwise linear regression, It describes the application of load forecasting, Conducted through virtual array DOA estimation, Minimum mean square error (MMSE) algorithm, Add noise processing, Phased array antenna pattern (Chebyshev weights), Linear array using cut than learning laid upon the right control of the main sidelobe ratio.)

hu不变矩 基于形状的图像检索 很有用的程序 欢迎大家下载(hu bu bian ju wen jian jian suo hen you yong de xiao cheng xu)

说明：  关于MLs的论文 有推导过程 很不错的学习资料(Papers on the MLs can refer to a derivation)