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Single_Carrier_FDMA(SC-FDMA)matlab
General Single_Carrier_FDMA(SC-FDMA)matlab simulation
- 2011-09-15 09:12:44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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Blocking-EDS
Since RREQ packets are flooded throughout the network, this algorithm does not scale well to large networks. If the destination node is located relatively near the source, issuing a RREQ packet that potentially pass through every node in the network is wasteful. The optimization AODV uses is the expanding ring search algorithm, which works as follows. The source node searches successively larger areas until the destination node is found. This is done by, for every RREQ retransmission until a route is found, incrementing the time to live (TTL) value carried in every RREQ packet, thus expanding the ``search ring in which the source is centered.
- 2015-01-17 18:31:21下载
- 积分：1
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SUDHEER_fdlf
基于matlab的典型IEEE 9节点系统潮流计算(matlab, ieee 9, load flow)
- 2018-11-26 20:36:47下载
- 积分：1
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1
说明： Multilayer perceptron for tanker ship heading regulation
- 2009-11-30 17:05:50下载
- 积分：1
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ofdm_fangzheng
说明： ofdm仿真程序，包括发射机和接收机两个部分，信道估计，(ofdm simulation program, including the two parts of the transmitter and receiver, channel estimation,)
- 2010-04-29 09:13:48下载
- 积分：1
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ABC
二维FDTD仿真高斯脉冲在平面内的传播，并且设定了ABC边界条件，可以自动生成关于Ez，Hx和Hy的.avi文件，播放脉冲动态传输。(Dimensional FDTD simulation Gaussian pulse propagation in a plane, and set the ABC boundary conditions, can automatically generate .avi files on Ez, Hx and Hy, and play dynamic pulse transmission.)
- 2014-11-06 06:48:27下载
- 积分：1
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SAR-IMAGING---
成像处理一般包括三个步骤：1、距离向脉冲压缩，对一个合成孔径内的每个回波脉冲均进行压缩；2、距离徙动矫正，把属于同一点目标的脉冲校正到等距离线上、3、方位向脉冲压缩。(Imaging process generally comprises three steps: a distance to the pulse compression of echo pulses each have an inner aperture compression 2, range migration correction, the pulses belonging to the same point in the correction target line equidistant , 3, azimuth compression to pulse.)
- 2013-12-07 13:23:27下载
- 积分：1
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Jeckess-system-sales
Finance-Stock software system
- 2015-03-14 22:10:49下载
- 积分：1
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Decoder
一种应用于咬尾卷积码的译码算法，基于维特比译码算法(A decoding method applied to tail biting convolutional codes of the matlab program)
- 2021-05-13 17:30:02下载
- 积分：1
