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444uihi
Differentiation of the Gaussian pulse
- 2009-03-30 21:44:41下载
- 积分：1
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PSO-evolutionarycomputation
粒子群优化算法(PSO)是一种进化计算技术(evolutionary computation)，有Eberhart博士和kennedy博士发明。源于对鸟群捕食的行为研究
PSO同遗传算法类似，是一种基于叠代的优化工具。系统初始化为一组随机解，通过叠代搜寻最优值。但是并没有遗传算法用的交叉(crossover)以及变异(mutation)。而是粒子在解空间追随最优的粒子进行搜索。详细的步骤以后的章节介绍
同遗传算法比较，PSO的优势在于简单容易实现并且没有许多参数需要调整。目前已广泛应用于函数优化，神经网络训练，模糊系统控制以及其他遗传算法的应用领域(Particle Swarm Optimization (PSO) is an evolutionary computation technique (evolutionary computation), has Dr. Eberhart and Dr. kennedy invention. Deriving from the behavior of birds of prey PSO with genetic algorithm is similar to an iterative optimization-based tools. System initialization for a group of random solutions, through the iterative search for optimal values. But there is no cross-genetic algorithm used (crossover) and mutation (mutation). But the particles in the solution space of the particles to follow the optimal search. In detail the steps after the introduction sections compared with the genetic algorithm, PSO has the advantage of being simple and easy and did not realize many of the parameters need to be adjusted. Has been widely applied to function optimization, neural network training, fuzzy system control, as well as other genetic algorithm applications)
- 2008-03-19 20:51:36下载
- 积分：1
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DCT-and-Image-Compression
DCT and Image Compression
In the JPEG image compression algorithm, the input image is divided into
8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each
block. The DCT coefficients are then quantized, coded, and transmitted. The
JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients,
computes the inverse two-dimensional DCT of each block, and then puts the
blocks back together into a single image. For typical images, many of the
DCT coefficients have values close to zero these coefficients can be discarded
without seriously affecting the quality of the reconstructed image.
The example code below computes the two-dimensional DCT of 8-by-8 blocks
in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients
in each block, and then reconstructs the image using the two-dimensional
inverse DCT of each block. The transform matrix computation method is used.
- 2014-01-28 16:55:07下载
- 积分：1
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MATLAB
精通matlab.pdf(1,715,585 字节)(matlab learning)
- 2015-01-05 22:32:13下载
- 积分：1
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Matlab仿真在光学中的应用
用matlab实现光学课程中多项仿真，应用源代码实现(Realization of Multi-simulation in Optics Course with MATLAB Application source code implementation)
- 2018-11-25 14:04:40下载
- 积分：1
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LMS
LMS算法，自适应算法中的最小均方误差算法。(LMS algorithm, adaptive algorithm, the minimum mean square error algorithm.)
- 2011-06-28 15:50:46下载
- 积分：1
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A_FEATURE_BASED_SEMI_FRAGILE
实现半脆弱小波提取，实现文献A FEATURE-BASED SEMI-FRAGILE WATERMARKING SCHEME IN DWT DOMAIN.pdf的源码(Achieve semi-fragile wavelet extraction, to achieve literature A FEATURE-BASED SEMI-FRAGILE WATERMARKING SCHEME IN DWT DOMAIN.pdf source)
- 2011-11-10 08:49:15下载
- 积分：1
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181101
this file contains matlab code for gui
- 2013-04-26 22:52:15下载
- 积分：1
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liuyifa
模式识别留一法模式识别留一法模式识别留一法模式识别留一法模式识别留一法(Pattern Recognition Pattern Recognition leave-one-leave-one-leave-one pattern recognition pattern recognition pattern recognition leave-one-leave-one-)
- 2011-05-17 09:31:14下载
- 积分：1
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signalgenration
signal generation using matlab
- 2013-07-30 21:55:53下载
- 积分：1
