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1232121APar
图像信号,处理,比较流行的粒子滤波,对遥感影像处理有借鉴意义(PARTICL)
- 2009-12-16 00:02:47下载
- 积分:1
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A_study_of_IEEE_802.16a_OFDM-PHY_Baseband
欧洲的一个学生,对802.16a的硕士论文。有OFDM的源代码。(Europe 1 students and the 802.16a master's thesis. OFDM is the source code.)
- 2006-11-08 17:42:22下载
- 积分:1
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code
多重网格算法实现图像的去噪,效果较好,基于rof模型,大家一起学习交流!(Multiple grid algorithm of image denoising, the effect is good, based on rof model, study with you exchange
)
- 2012-05-13 17:35:51下载
- 积分:1
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matlabexcel
本程序的功能是将模型结果直接输出到excel中的演示(The program s function is to generate the result of the model to demonstrate in excel)
- 2011-09-07 15:33:24下载
- 积分:1
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alamouti-QPSK
THis is the QPSK code for MIMO channel. This will give you BER performace
- 2013-04-10 02:07:40下载
- 积分:1
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matlab-GUI
有35个成熟的matlab GUI设计,代码通用性强,便于根据需要具体更改,也可以作为GUI学习的教程,全面、细致,35个GUI的侧重各不相同,功能强大。(There are 35 mature matlab GUI design, code, versatility, ease of specific changes needed, can be used as GUI learning tutorials, comprehensive, detailed, focusing on 35 different GUI is powerful.)
- 2015-06-08 00:07:53下载
- 积分:1
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midterm2
some example for matlab
- 2012-04-11 09:09:20下载
- 积分:1
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pinpu
在快速傅里叶变换大的基础上以对信号进行短时分析,能画出三维瀑布图。(In the fast Fourier transform big on the basis of the signal is short analysis, can draw 3 d waterfall diagram
)
- 2012-09-05 15:15:38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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ENtropy-Sift
This Function Calculates The Difference of Gaussian
for SIFT feature detection
input parameter definition
1. Pyramid=image
2. NumOfLevel=levels to be calculated
3. InitSigma=initial variance of Gaussian
- 2013-11-26 21:36:05下载
- 积分:1