-
xiashan
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.)
- 2013-05-15 08:52:09下载
- 积分：1
-
grap_theory
图论的入门课件，很好的~特意拿出来share~(a very good sorce about grap theory intrduction.)
- 2009-04-25 16:26:09下载
- 积分：1
-
code
MATALB code to extract features from EEG signal
- 2013-11-15 18:51:22下载
- 积分：1
-
Electromagnetic_Field
电磁场学中 电磁转换问题。并且含有GUI创建的基本应用(electromagnetic field)
- 2012-05-05 13:56:26下载
- 积分：1
-
array001
空间零点预处理波束形成仿真 matlab(Spatial null preprocessing beamformer)
- 2013-08-27 09:59:50下载
- 积分：1
-
raised-cosine-filter
升余弦滚降系统的设计与MATLAB仿真的源代码(raised cosine filter )
- 2013-03-13 23:46:05下载
- 积分：1
-
Capon
传统capon波束形成算法 基本上是最简单的波束形成算法了(Traditional capon beamforming algorithm)
- 2013-11-11 09:13:17下载
- 积分：1
-
White-noise-autocorrelation
利用x(n)=Asin(pi*n/16)+z(n),z(n)为mean=0，var=0.1高斯白噪声，x(n)的SNR为10dB,s(n)=Asin(pi*n/16-5*pi),得出了x(n)和s(n)互相关函数r(n)，以及二者的卷积和.(The utilization for the mean of x (n) = Asin (pi* n/16)+ z (n), z (n) = 0, var = 0.1 Gaussian white noise, x (n) is the SNR as 10dB, s (n) =Asin (pi* n/16-5* pi), draw the x (n) and s (n) the cross-correlation function r (n), as well as the convolution of the two.)
- 2013-05-05 19:25:37下载
- 积分：1
-
LTE_Turbo_Encoder_Simulink
使用matlab的simulink工具 仿真LTE中的Turbo编码器(Simulating the Turbo_encoder in LTE via the simulator of matlab )
- 2012-04-02 11:11:15下载
- 积分：1
-
inverter_svpwm_threelevel
三电平I型拓扑结构的SVPWM仿真模型，供大家参考学习。(The three level SVPWM simulation model of I topology, for reference study.)
- 2021-01-22 22:18:44下载
- 积分：1
