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A filter bank structure that can deal effectively with piecewise smooth images with smooth contours, was proposed by Minh N Do and Martin Vetterli. The resulting image expansion is a directional multiresolution analysis framework composed of contour segments, and thus is named contourlet. This will overcome the challenges of wavelet and curvelet transform. Contourlet transform is a double filter bank structure. It is implemented by the pyramidal directional filter bank (PDFB) which decomposes images into directional subbands at multiple scales. In terms of structure the contourlet transform is a cascade of a Laplacian Pyramid and a directional filter bank. In essence, it first use a wavelet-like transform for edge detection, and then a local directional transform for contour segment detection. The contourlet transform provides a sparse representation for two-dimensional piecewise smooth signals that resemble images.

脉冲响应不变法设计巴特沃斯数字低通滤波器(Impulse response invariant method design Butterworth digital low-pass filter)

matlab子程序，用于光线追迹，计算光线经过透镜面后的坐标和方向。(MATLAB subroutine for ray tracing to calculate the coordinates and direction of light through the lens surface.)

模拟交通事故道路通行量的元胞自动机matlab程序(Simulated road traffic accident traffic volume cellular automaton matlab program)

13位巴克码+线形调频信号，进行脉冲压缩处理，中间经过解调处理。(13 Barker Code+ Linear FM signal, the pulse compression processing, intermediate processing after demodulation.)

说明：  一篇讲解关于matlab与vc混合编程的问题。其中的讲解是通过实例来讲的(Matlab with a brief on the problem of mixed programming vc. Which is explained through examples of)

Mechanics of Composite Materials with MATLAB

Go-cfar仿真程序 ：matlab实现cfar处理，为子函数，可供其他程序调用(Go-cfar Emulator: matlab realize cfar treatment for Functions available for other programs call)

该书详细描述了 matlab编程从入门到精通(Book describes in detail the matlab programming from entry to the master)

有关MPSK调制，传输模型。成型脉冲分为矩形，升余弦脉冲，平方根升余弦脉冲。M的值为2，4和8.所加噪声是高斯白噪声。(Of the MPSK modulation, transmission model. Pulse shape is divided into rectangular, raised cosine pulse, the square root raised cosine pulse. The value of M for 2,4 and 8. The increase in noise is Gaussian white noise.)