Rao_eg4_21

说明：  这是一个在matlab中实现灰度图像二值化的小程序(This is a gray image is implemented in the matlab binary applet)

performance improvement with different codes

对图像求拉普拉斯变换，分别使用中心为-4、-8其他值均为1的拉普拉斯滤波器(Laplace transform of image, Laplace filter respectively using the center for- 4、-8，other value for 1)

假设在一个ad hoc网络中，移动节点的发射功率PTx总是恒定的。要发送数据的移动节点总是先监听信道，测量接收到的信号功率X，其中X= I + N, I为接收到的干扰，N是噪声。移动节点只有在X＜INThre时，才可以发射。式中，INThre为背景噪声门限。 在仿真中，我们规定每个移动节点的发射功率是常数，PTx = 1W；接收节点接收机的灵敏度Smin = -80 dBm；信号质量 min = 2 dB；系统的背景噪声门限INThre = 1.2e-10。 (Assuming in an ad hoc network, mobile node s transmission power is always constant PTX. To send data to the mobile node always monitor channel, measuring the received signal power X, which X = I+ N, I was received interference, N is the noise. Mobile node only when X <INThre when it is fired. Where, INThre threshold for background noise. In the simulation, we require that each mobile node s transmission power is constant, PTx = 1W receiver node receiver sensitivity Smin =-80 dBm signal quality )

具有不完全微分的PID控制方法，可以根据M参数的选择查看演示效果（M=1为不完全微分PID的效果）。(With incomplete derivative PID control method, according to the choice of M parameters to view your presentation (M = 1 is the effect of incomplete differential PID).)

用matlab编写的牛顿迭代方法求解非线性方程组：数值分析中很经典的代码(a matlab code of newton method solve system of nonlinear equations)

用matlab实现对已知数据的非线性拟合及数据预测(Using matlab implementation of the known non-linear fitting of data and data prediction)

matlab subroutine incldes limit conditions ito the global stifness matrix and load victor for a quzdrilateral element

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Grey Image to Color Image Conversion