Poincare_New

迭代法求解一次方程运用迭代法实现一次方程的求解 原创(Iteration method to solve a equation)

坦克不变矩的智能识别,压缩包有坦克的图像,对不变矩的学习非常有用.(Moment invariants of the intelligent recognition tanks, compression tanks packed with images of the moment invariants of study very useful.)

说明：  这是一篇关于变桨距控制器的模型，仿真环境，matlab(This is a model of pitch controller, simulation environment, matlab)

通过matalb实现语音信号的处理，完成预加重、加窗函数、端点检测及生成处理后语音样本(Achieved by processing the speech signal matalb, complete the pre-emphasis, windowing function, voice activity detection and generation after sample processing)

四阶龙格库塔法解常微分方程组 四阶龙格库塔法解常微分方程组(4-Runge-Kutta)

Companion Software

％ 本程序实现2维TM波FDTD仿真 ％ 此程序用PML设置吸收边界条件 ％ FDTD_2D_kongqi_PML ％ 仅喊有Ez,Hx,Hy分量( Of the procedures to achieve 2-D TM wave FDTD simulation this program set up with PML absorbing boundary condition FDTD_2D_kongqi_PML have only shout Ez, Hx, Hy component)

It s about 3d 3D DIPOLE ANTENNA DESIGN.

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.)

广义互相关算法和最小均方自适应滤波法主要用于两路接收信号的时间延迟估计，进而利用几何方法对目标定位，常用于通信，雷达当中(broad cross-correlation algorithm and the minimum mean square adaptive filter for the two main roads to receive signals in the time-delay estimation, then use geometric method of orientation, used in communications, radar them)