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soliton
求解孤子方程的matlab源码,可用于光通信系统仿真(solving soliton equation in matlab)
- 2011-01-04 09:54:13下载
- 积分:1
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MovingTargetDetectionByMMI[matlab]
基于最大互信息的运动目标检测[matlab源码](Moving target detection based on maximum mutual information, matlab)
- 2014-11-27 06:22:56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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Voiceprint-recognition
这是一个声纹识别程序,基于matlab实现,通过建模,简历声纹模型,认证时自动识别(This is a voiceprint identification procedures, based on matlab realize, through modeling, resume voiceprint model, automatic identification authentication)
- 2021-01-07 10:38:53下载
- 积分:1
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OFDM系统稀疏信道估计方法LS算法
说明: 实现OFDM多种信道条件下的LS时域频域信道估计方法仿真(Simulation of LS time domain and frequency domain channel estimation method for OFDM with multiple channels)
- 2021-04-26 14:28:45下载
- 积分:1
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skindetect_rect
肤色检测,YCbCr空间,直接阈值处理,效果还行,可以参考下(skin detection)
- 2012-05-10 16:18:44下载
- 积分:1
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zp_MP
用matlab实现MP算法进行信号重构,有详细的注释(MP algorithm using matlab to achieve signal reconstruction, detailed notes)
- 2011-11-12 22:24:29下载
- 积分:1
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GP-algorithm
gp算法,只需导入数据即可计算。数据为一维时间序列。自己总结出来,很好用!(gp algorithm)
- 2011-12-17 13:58:35下载
- 积分:1
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modalidentification
模态参数辨识方法,主要是利用时域数据进行时域模态参数辨识(time modal identification method)
- 2013-11-26 21:52:47下载
- 积分:1
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SEIR,模型
说明: seir模型模拟传染病
人在康复以后产生了抗体就不会再得病。不同于SIS模型,我们在模型中引入康复者(The Recovered),用 [公式] 表示,并满足总人数 [公式] 。这个时候就是SIR模型。一旦变为康复者,就不会再传染,即在概率传递过程中,一旦变为康复者,就没有概率再次转移为感染者或者易感者。我们假设感染者变为康复者的概率为我们来看下SIR模型的微分方程(SEIR model simulating infectious diseases)
- 2020-04-10 19:23:46下载
- 积分:1