-
radar_eq
radar equation in matlab
- 2010-11-21 00:29:24下载
- 积分:1
-
coordinate
说明: 提供坐标轴缩放、转换、设置的matlab环境模版。(Provide axes scaling, conversion, set the template of the matlab environment.)
- 2009-08-12 11:14:58下载
- 积分:1
-
wavelet
用MATLAB编程 主要讲解小波变换的一些知识包括源代码,适用于研究小波变换的人(Mainly on the use of MATLAB programming knowledge, including some of the wavelet transform source code, for the people of wavelet transform)
- 2011-04-24 11:28:51下载
- 积分:1
-
MiMoWireSystem
matlab环境,瑞利信道下mimo无线通信系统的仿真,包括原始的单入单出siso,到单入双出sido,到单入多处simo,到mimo系统中垂直分层空时码vblast的误码率仿真曲线。(Matlab environment, Rayleigh Channel mimo wireless communication system simulation, including the original single-input single-output siso, single-and double-sido to multiple single-simo, mimo system of vertical layered space-time codes vblast BER simulation curve.)
- 2007-04-13 23:07:38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
-
Lattice-based_RLS_Algorithms
Lattice based RLS Algorithms using matlab with examples
- 2013-12-21 16:40:22下载
- 积分:1
-
Random walk around antlion
说明: 通过蚂蚁的随机移动而提出的一种随机游走算法(A random walk algorithm based on the random movement of ants is proposed)
- 2020-06-20 11:20:02下载
- 积分:1
-
work
说明: 此程序为语音信号的过零率检测,白噪声过零率远远高于语音信号,故可通过对过零率的检测判断出是不是语音信号。(This procedure for the zero rate of speech signal detection, white noise zero crossing rate is much higher than the speech signal, it can zero rate by detection of voice signal is not judged.)
- 2011-03-10 22:24:44下载
- 积分:1
-
shuzituxiangchuli
一个简单的fft小程序,可以方便的将滤波器放在任意位置(A simple fft small program that can easily be placed anywhere on the filter)
- 2010-05-21 12:14:00下载
- 积分:1
-
AR
说明: matlab写的用于时间序列预测的AR模型的程序,对于线性的时间序列效果还是可以的。(Matlab written procedures for time series forecasting AR model, the linear effect of time-series.)
- 2012-05-27 13:01:59下载
- 积分:1