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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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1
说明: 二阶巴特沃斯(Butterworth)低通滤波器(Low pass filter)
- 2010-09-07 10:30:37下载
- 积分:1
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Pr_1
Communication tehnoligies Part1
- 2010-12-27 00:02:31下载
- 积分:1
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snr_mnm
空间普估计之mnm算法随着信噪比变化如何变化的(Algorithm estimates mnm space with general changes in how the SNR changes)
- 2011-09-13 10:14:01下载
- 积分:1
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V3004V5.5
一个数字电桥的开发程序,基于SCT12C5A60S3的程序,实际测试通过!(A digital bridge development process, based on the SCT12C5A60S3 procedures, through the actual test!)
- 2014-10-04 22:16:15下载
- 积分:1
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KF-MATLAB
卡尔曼滤波程序:此程序是以蛇形机动目标为运动模型进行的卡尔曼滤波。(The MATLAB simulation program based on kalman filter)
- 2014-12-09 20:59:07下载
- 积分:1
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rand
产生rand,本代码主要介绍产生rand的主要步骤,非常简单有很明了,非常适合阅读
(Rand, the code describes the main steps of Rand are very clear, very simple, very suitable for reading)
- 2015-04-20 10:02:36下载
- 积分:1
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iriswavepr
decomposition image
- 2009-04-23 05:21:29下载
- 积分:1
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PF_Code
自己编写的粒子滤波的源码,用于故障诊断,是MATLAB语言写的,(their preparation of the particle filter source for fault diagnosis, is written in MATLAB.)
- 2020-07-03 17:40:02下载
- 积分:1
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Q13
fuzzy control method for stability analysis of systems
- 2015-01-26 02:16:40下载
- 积分:1