-
BPNN
此代码是BP网络的MATLAB仿真程序,实现的是对曲线的拟合。(This code is a BP network, MATLAB simulation program, implementation is the fitting curve.)
- 2009-12-02 01:51:19下载
- 积分:1
-
tfr6pwvd
6阶多项式瓦格纳威利分布的源代码,实现良好的时频聚集性和精确的时频峰估计(6-order polynomial distribution of the source code of Willie Wagner, to achieve good time-frequency clustering and accurate estimates of time-frequency peak)
- 2011-06-28 23:35:24下载
- 积分:1
-
markovian-models-for-squential-data
hidden markov models for face recegnisation
- 2014-11-06 17:12:55下载
- 积分:1
-
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
-
QPSK
QPSK modulation with awgn channel
- 2013-12-08 22:27:12下载
- 积分:1
-
bv_cvxbook
最新的一本凸优化外文书籍,讲得通俗易懂,很好的一本书。(A convex optimization foreign language books)
- 2012-12-04 15:54:13下载
- 积分:1
-
cfar
这是一个雷达恒虚警matlab仿真程序,效果比较好(This is a radar CFAR matlab simulation program, the effect is better)
- 2021-04-18 22:58:51下载
- 积分:1
-
tuxiangfenli
说明: 通过对独立分量分析算法的研究,介绍了该算法的基本模型及目前应用最广泛的快速定点ICA算法的数学原理.通过仿真试验结果表明,用该算法对随机混合的3幅图像进行盲分离,取得了理想的效果.(By independent component analysis algorithm, introduced the algorithm for the basic model and is currently the most widely used fast fixed-point ICA algorithm of mathematical principles. Through the simulation test results show that the algorithm to a random mixture of three images in blind source separation, and achieved the desired results.)
- 2008-10-10 12:56:13下载
- 积分:1
-
niudun
解决非线性方程组,通过输入初始值来迭代得到数值解(nolinear function)
- 2011-05-05 11:24:37下载
- 积分:1
-
antenna_RectPatch.m
有两个代码文件,是分别计算微带贴片天线设计时背馈和侧馈两种情况下的天线尺寸的,很全很精确!(There are two code files, which separately calculate design of microstrip patch antenna fed back and the side-fed both cases, the antenna size, it is all very precise!)
- 2009-10-25 17:05:53下载
- 积分:1