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DCT_IDCT
to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expression
for M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the execution
now compare our special 8X8 functions with the internal general functions
use this code:
A = int32(100*rand(8,8))
tic for i = 1 : 1000 IDCT_8X8(DCT_8X8(A)) end toc
tic for i = 1 : 1000 idct2(dct2(A)) end toc
i had built the general functions too, but with low speed (to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expressionfor M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the executionnow compare our special 8X8 functions with the internal general functionsuse this code: A = int32 (100* rand (8,8)) tic for i = 1: 1000 IDCT_8X8 (DCT_8X8 (A)) end toc tic for i = 1: 1000 idct2 (dct2 (A)) end toc i had built the general functions too, but with low speed)
- 2007-12-05 18:28:42下载
- 积分:1
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NLSCNLDL
Nonlinear Schrodinger Equation Explicit
- 2013-07-20 03:04:58下载
- 积分:1
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the-fem-using-matlab
包括欧拉梁单元,杆件梁单元,Truss单元,边界处理等。可通用,里面有变量说明。详细可参考THE FINITE ELEMENT METHOD USING MATLAB(Euler beam element)
- 2012-06-12 20:58:03下载
- 积分:1
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seasonalpro
Deasonalize the data adn agian seasonalize it.
- 2011-04-22 16:25:11下载
- 积分:1
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emd谱峭度
比较齐全的hht算法的程序,可以进行谱峭度分析,选取峭度最大的分量,求其包络谱,能够明显看出特征频率,比较实用。(A more complete algorithm of HHT algorithm can carry out spectral kurtosis analysis, select the largest component of kurtosis, and find its envelope spectrum, which can clearly see the characteristic frequency, and is more practical.)
- 2018-03-18 21:43:59下载
- 积分:1
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m12_5
神经网络模型辨识及其MATLAB实现范例(Neural network model identification and implementation examples of MATLAB)
- 2009-03-12 11:07:18下载
- 积分:1
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MATLABProgrammingTutorial
本书主要是介绍了matlab程序设计的教案。(This book mainly introduces the matlab program to design the curriculum.)
- 2010-08-30 20:13:52下载
- 积分:1
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Watermarking_Edge
this is partial code for paper "A Robust Wavelet-Based Watermarking Algorithm Using Edge Detection"
- 2009-06-16 02:36:56下载
- 积分:1
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genm
说明: m序列生成程序matlab实现此函数用来生成最大长度线性移位寄存器序列(m sequence generated matlab program to achieve this function used to generate the maximum length linear shift register sequence)
- 2008-09-16 16:23:28下载
- 积分:1
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Matlab
digital processing in matlab
- 2013-10-30 09:40:10下载
- 积分:1