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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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Behind-Two-Point-parfor_progress
方便观察并行运算采用parfor（并行循环）时的运算进程，一个简化版的进度条，比具有GUI的进度节省不少珍贵的电脑资源。本程序根据网上parfor_progress的源程序改编而，但显示到小数点后2为的精确进度情况，比网上的灵敏度更高。(It convenience for us to observe the operation process when we use Parallel Algorithmic parfor(paralle circulation)to compute,a simplify progress bar.But saving more precious computer resource for you than GUI PROGRESS BAR. And this program is rewrite by the source program of parfor_progress in the network, more precision than the web program, advanced dispaying two digits after the decimal point. This is his advantages.Thanks!)
- 2015-02-09 21:59:45下载
- 积分：1
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新建文件夹
说明： 光谱预处理源程序normaliz
光谱预处理源程序rescal
光谱预处理源程序savgol(Spectral pretreatment)
- 2020-09-02 12:00:56下载
- 积分：1
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很不错的采用特征点匹配的指纹识别源码
欢迎大家下载学习，相关分析过程的matlab方法，一些自适应信号处理的算法，部分实现了追踪测速迭代松弛算法，是学习PCA特征提取的很好的学习资料，对于初学matlab的同学会有帮助。
- 2022-01-25 15:49:04下载
- 积分：1
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lbbsplines
这是在数值计算时经常用的样条插值的程序，能够在在MATLAB环境下直接运用。(This is the numerical calculation frequently used spline interpolation procedures in the MATLAB environment direct use.)
- 2006-05-31 09:21:56下载
- 积分：1
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signal
随机信号设计课件，提供基础参考，对信号设计方面有所裨益(single process)
- 2012-09-18 21:33:09下载
- 积分：1
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运用多尺度自卷积计算图像的仿射不变矩的方法，该方法新颖，具有一定的创新性...
运用多尺度自卷积计算图像的仿射不变矩的方法，该方法新颖，具有一定的创新性-Using multi-scale image from the convolution calculation of affine invariant moment method, which is novel, has some innovative
- 2022-03-29 07:00:14下载
- 积分：1
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OFDM transceiver by using simulation
资源描述In this project, we are going to implement an OFDM transceiver by using simulation.
To simplify the simulation, DAC and ADC are omitted in the implementation.
Discrete-time baseband signal model is used. Perfect timing and frequency
synchronization are achieved. Time domain impulse response is known. Referring to
the above figure, the information bits are modulated and fed into M-pont IDFT (or
IFFT). After adding cyclic extension, the signal x[n] is send out.
- 2022-07-18 00:16:49下载
- 积分：1
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lyapunov_wolf
该函数用来计算时间序列的最大Lyapunov 指数--Wolf 方法(The function used to calculate the time series of the largest Lyapunov index- Wolf Ways)
- 2009-03-05 10:12:44下载
- 积分：1
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funktab1
This program tabulates the given function, check out the code for more information. Its in estonian but its not that difficult to understand.
- 2009-12-07 07:35:51下载
- 积分：1
