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hhu_pfcp
电力潮流计算程序 很有用处 可以大家学习哈(电?| ?????扑??绦??苡杏?)
- 2008-08-04 00:19:38下载
- 积分：1
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ostu_matlab
说明： Otsu算法是图像分割算法中比较实用和高效的一种，对图像的后续处理有很好的作用(Otsu algorithm is image segmentation algorithm in a more practical and efficient, the follow-up processing of the images have a good effect)
- 2010-04-03 14:35:11下载
- 积分：1
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DCTlicheng
研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散
余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的
K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角
阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这
反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特
性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。
虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。
(Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete
The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images
Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix
Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this
Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image
Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect.
Although from related to the performance of the sense, DCT is a kind o)
- 2013-11-25 16:00:24下载
- 积分：1
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heat-conduction-equation
偏微分方程热传导方程MATLAB求解，分别用了向前差分，向后差分，六点差分和Richardson差分进行求解(MATLAB PDE heat equation solving, respectively, with a forward difference, backward difference, six for solving differential and differential Richardson)
- 2020-09-12 15:48:05下载
- 积分：1
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QAM
采用MATLAB编程，产生一个16QAM中频调制信号。采用MATLAB编程，产生一个16QAM中频调制信号。(Using MATLAB programming, a 16QAM modulation signal frequency. Using MATLAB programming, a 16QAM modulation signal frequency.)
- 2008-12-22 22:18:10下载
- 积分：1
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wavelet_morlet
对一维信号进行连续小波变换，从时频角度分析和处理信号！(One-dimensional continuous wavelet transform signals from time-frequency analysis and signal processing point of view!)
- 2010-09-24 12:29:25下载
- 积分：1
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SHPWM
SubHarmonic Pulse Width Modulation control for a seven-level inverter :
- 2016-01-06 04:57:03下载
- 积分：1
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loutiu_v72
用MATLAB编写的遗传算法路径规划，可以动态调节运行环境的参数，小波包分析提取振动信号中的特征频率。( Genetic algorithms using MATLAB path planning, Can dynamically adjust the parameters of the operating environment, Wavelet packet analysis to extract vibration signal characteristic frequency.)
- 2016-09-30 16:24:28下载
- 积分：1
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665-965-1-PB
STUDY OF VARIOUS NOISE MODEL AND FILTERING TECHNIQUES
- 2014-11-09 02:53:12下载
- 积分：1
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fuzzpid
用matlab 来仿真模糊pid控制器，对学习pid有一定的帮助(fuzzy pid controller)
- 2009-05-08 12:31:03下载
- 积分：1
