main_final

This paper describes two digital implementations of a new mathematical transform, namely, the second generation curvelet transform [12, 10] in two and three dimensions. The first digital transformation is based on unequally-spaced fast Fourier transforms (USFFT) while the second is based on the wrapping of specially selected Fourier samples. The two implementations essentially differ by the choice of spatial grid used to translate curvelets at each scale and angle. Both digitaltransformations return a table of digital curvelet coefficients indexed by a scale parameter, anorientation parameter, and a spatial location parameter. And both implementations are fast in the sense that they run in O(n2 log n) flops for n by n Cartesian arrays in addition, they are also invertible, with rapid inversion algorithms of about the same complexity.

matlab, 对DICOM图像读取，进行阈值运算，改变颜色后输出。(matlab, read DICOM image threshold operation, change colors after output.)

LEARNING MATLAB MADE EASY

This is PSO_algorithm

C Code example with EII

此文件为模拟zernike波面拟合图像与原始波面图形的误差的图像。通过模拟真实环境的随机误差，得到误差函数的波面(This file is simulated zernike Wavefront fitting the image with the original wave-front error of graphic images. By simulating the real environment, random error, the wavefront error function to be)

说明：  针对调幅信号求包络波的问题，给出求调幅信号的包络程序(Demand for AM signal envelope wave problem, given the program seek AM signal envelope)

介绍了几个认知无线电的宽带频谱检测实现的MATLAB代码，包括能量检测算法、匹配滤波器方法等。(Introduces several MATLAB code based broadband spectrum of cognitive radio technology, including energy detection algorithm, matched filter method, etc.)

2007年4月份，法国人的最新emd程序，(April 2007, the French emd the latest procedures,)

Practical matlab experiment for charging a capacitor