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función para Reducir la escala de gris

MATLAB 教程 含源程序(MATLAB Tutorial with source code)

说明：  本例用matlab解决了数学建模中飞机精确定位问题。使用了优化函数‘constr’解决。（请在matlab 6.5以下运行）(Using matlab to solve this case, the mathematical modeling of precise positioning of the aircraft. The use of optimized function ' constr' solution. (Please run the following in matlab 6.5))

说明：  离散系统灰色PID控制,对不确定部分建立灰色估计模型,根据参数的不确定部分进行一定的补偿(PID control of gray discrete-time systems, part of the establishment of the uncertainty estimation model gray, according to the parameters of uncertainty to a certain part of the compensation)

说明：  DTMF的PDF说明文件，从原理到应用方法进行了详尽的叙述，使人理解双音多频的概念和使用方法(DTMF PDF Document from the application of the principle carried out a detailed narrative that people understand DTMF the concept and use)

Image Enhancement for enhancement the image by using the digitneg for enhancement the image by using the digitneg

butterworth filter for images

用于转子故障振动，采集信号后，用小波包方法对振动信号进行频谱分析，比傅立叶变换更细化。(Spectrum analysis of vibration signal by wavelet packet method)

使用 matlab对CW、LFM信号模糊度进行计算并且绘制图像(Using MATLAB to calculate the ambiguity of CW and LFM signals and to draw images)

说明：  轴系设计计算-4 人字架结构尺寸的优化设计-1 曲线拟合和多项式拟合-2(Shaft design calculation-4 Renzi Jia Structural size optimization of the design curve fitting and polynomial fitting-1-2)