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这是《Numerical Methods with MATLAB: Implementation and Application》一书的配书程序（Matlab）(matlab code for "Numerical Methods with MATLAB: Implementation and Application")

通过matlab对多幅图像进行图像分割，并找出关键区域，实现定位(Of multiple images through the matlab image segmentation, and identify critical areas to achieve positioning)

说明：  要：分析和研究了授权用户和认知用户共享频谱的一种算法的性能。 针对阴影效应或信道深衰落时，单用户频谱感知算法无法识别是频带未被 使用还是信道处于深衰落的情况，在频谱感知功率控制算法上进行了改进， 以克服这种算法的不足。改进后的算法能有效地控制认知用户的发射功率， 避免对授权用户产生有害的干扰。仿真结果表明改(To: analysis and research of the authorized users to share spectrum users and a cognitive performance of the algorithm. For the shadow effect or deep fading channel, the single-user spectrum sensing algorithm can not identify a band or a channel has not been used in the case of deep fading, the spectrum sensing power control algorithm has been improved on, to overcome the deficiencies of this method. The improved algorithm can effectively control the cognitive user' s transmit power, to avoid harmful interference with authorized users. Simulation results show that the change)

Image Demosaicing by nearest-neighbor interpolation method

matlab比较简单的直方图阈值分割方法(Histogram thresholding)

使用低通滤波器，观察原始图像与以图形形式显示的高斯低通滤波器的差别，显示频谱和处理后的图像！(Using low-pass filter to observe the original image and displayed in graphical form of the difference between the Gaussian low pass filter, display the spectrum and the processed image!)

海伦方法分析偶极子天线的频率阻抗特性-电阻随频率的变化，电抗随频率的变化(Helen analyze the frequency dipole antenna impedance- resistance changes with frequency, the change of reactance with frequency)

波音747飞机运动空间六自由度仿真模型-Simulink程序(The Simulink of 6-DOF Model for Boein 747)

说明：  蓄电池双向buck-boost变换器，可以仿真，(16/5000 Matlab draw three-dimensional sphere, coordinate axis)

You can use this script to generate synthetic DWMRI or DTI datasets