-
Fastdiscretecurvelettransforms
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.
- 2011-10-30 15:57:56下载
- 积分:1
-
UpgradingofTransmissionlinebycombiningACDCtransmi
Long extra high voltage (EHV) ac lines cannot be loaded to their thermal limits in order to keep sufficient margin against transient instability. With the scheme proposed in this project, it is possible to load these lines very close to their
- 2013-11-28 22:13:05下载
- 积分:1
-
DBF_s
自适应波束形成MVDR算法和DREC算法matlab程序(MVDR and DREC algorthms)
- 2020-11-26 20:49:31下载
- 积分:1
-
duoxiangshinihe
emd分解中采用多项式拟合算法消除边界效应(emd decomposition of polynomial fitting algorithm is used to eliminate the boundary effect)
- 2009-11-03 20:22:19下载
- 积分:1
-
Benulli
Benulli映射产生的混沌序列,李雅普诺夫指数和倍周期分叉图(Benulli mapping of chaotic sequence, lyapunov index and period-doubling bifurcation diagrams)
- 2014-02-27 12:37:27下载
- 积分:1
-
shiyan1
曹梦龙 仿真大实验
欧拉 隐氏欧拉 改进欧拉的matlab m程序 包括命令 以及生成的图形(Euler implicit Euler Improved Euler s program, including command of matlab m-generated graphics and)
- 2011-08-25 09:16:04下载
- 积分:1
-
LogisticWatermark
MATLAB置乱加密DCT水印~~~~~~~~~~~~~~~~~~~~~~~(MATLAB is scrambled DCT watermark)
- 2013-04-27 19:54:42下载
- 积分:1
-
siftmtvc
说明: 图像稳定的程序,VC编写,很实用,对正在学习的朋友有帮助。(Image stabilization procedures, VC preparation, very practical, and helpful friends are learning.)
- 2010-04-08 02:20:51下载
- 积分:1
-
matlab_orders
matlab工作空间中的常用命令简介,浅显易懂()
- 2008-05-12 10:16:00下载
- 积分:1
-
DMC的matlab实现
说明: dmc的matlab实现方法,运行实现过程正常,中间有一部分注释(matlab code of dmc which have been tested for many times)
- 2019-03-28 13:38:39下载
- 积分:1