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SPWMinverter3P_Final
Consist of SPWM Generator. Three phase inverter with pulses.
- 2013-10-29 18:49:56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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kmeans
说明： 数据聚类，主要对于数据点进行聚类，输出节点分类情况和节点中心(Data clustering, mainly for data points clustering, output node classification and node Center)
- 2020-05-16 19:19:01下载
- 积分：1
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EARB1
EARLANG B MATLAB CODE IN TELECOM
- 2013-10-05 00:35:02下载
- 积分：1
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system_s-function(mimo)
这是用SIMULINK的S-FUNCTION方式编写的系统仿真代码，系统是基于4G网络的核心技术空时分组编码的MIMO-OFDM通信系统的，涉及到空间分集、时间分集和频率分集的有机结合，包括QPSK调制解调、IFFT调制、控制编解码、基于训练符号的信道估计等通信模块。包括main_STBC_MIMO_OFDM和training_symbol两个M文件和一个DOC文件，对各部分的都有详细的代码和注释。(It is used SIMULINK the S-FUNCTION approach to the preparation of the system simulation code, the system is based on the 4G network s core technology space-time block coded MIMO-OFDM communication system, involving spatial diversity, time diversity and frequency diversity of the organic combination, including QPSK modulation and demodulation, IFFT modulation, control of encoding and decoding, symbol-based channel estimation training and other communication module. Including main_STBC_MIMO_OFDM and training_symbol two M file and a DOC file, have detailed the various parts of the code and comments.
)
- 2010-12-02 15:37:44下载
- 积分：1
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matlabhanshu
matlab一些常用的函数，对初学者有重要的参考价值(matlab some commonly used functions, for beginners has important reference value)
- 2013-06-05 14:16:47下载
- 积分：1
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matlab_cpp
Solving Engineering Problems Using MATLAB C++ Math Library Introduction
In the previous article, we studied how can use MATLAB C API to solve engineering problems. In this article I will show you how can use MATLAB C++ math library. The MATLAB® C++ Math Library serves two separate constituencies: MATLAB programmers seeking more speed or complete independence from interpreted MATLAB, and C++ programmers who need a fast, easy-to-use matrix math library. To each, it offers distinct advantages.
- 2007-11-05 15:06:09下载
- 积分：1
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my
说明： 实现对频谱泄露造成的频率谱分析误差，此程序基于MATLAB软件
(To realize the frequency spectrum leakage caused by spectral analysis of error, this program based on MATLAB software)
- 2008-03-23 21:29:05下载
- 积分：1
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funWatershedDistance
whatershed image processing
- 2011-05-03 21:24:21下载
- 积分：1
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MT_Filter
MATLAB下用Matched-z 变换设计低通，高通，带通，带阻数字滤波器设计(Using MATLAB m-file to design LP, HP, BP and BS fitlers by matched-z transformation.)
- 2010-06-27 03:40:13下载
- 积分：1
