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Fading-channel-simulation
衰落信道仿真
function r = rayleigh( fd, fs, Ns )
r = rayleigh(fd,fs,N)
A Rayleigh fading simulator based on Clarke s Model
Creates a Rayleigh random process with PSD determined
by the vehicle s speed.
INPUTS:
fd = doppler frequency
set fd = v*cos(theta)/lambda
v = velocity (meters per second)
lambda = carrier wavelength (meters)
theta = angle w/ respect to tangent (radians).
fs = sample frequency (Samples per second)
Ns = number of samples of the Rayleigh fading
process to produce
OUTPUTS:
r = row vector containing Ns samples of the Rayleigh
fading process
Author: Matthew C. Valenti
Mobile and Portable Radio Research Group
Virginia Tech
For Academic Use Only
(Fading channel simulation)
- 2012-04-19 20:13:22下载
- 积分:1
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CN
说明: matlab代码,CN 算法求解非线性薛定谔方程,并且衍射积分(matlab code, CN algorithm for solving nonlinear Schrodinger equation, and the diffraction integral)
- 2014-02-14 05:21:37下载
- 积分:1
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G_P
此程序是用G-P算法计算关联维数Dc。
注意:一定要下载混沌工具箱后使用。(This procedure GP algorithm is the correlation dimension Dc. Note: Be sure to use the chaos toolbox download。)
- 2009-05-29 00:09:03下载
- 积分:1
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MATlAB-gauss
已知赤经赤纬计算轨道六根数,采用高斯算法(calculate orbit elements(gauss))
- 2011-07-08 09:04:11下载
- 积分:1
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Infrared-Image-Enhancement
针对基于小波变换的红外图像增强方法视觉效果不够理想的缺点, 提出了一种基于平稳小波变换和Retinex 的红外图像增强方法, 利用Retinex 增强算法增强图像的视觉效果, 并改善其亮度均匀性。首先, 对红外图像经平稳小波变换后的最大尺度低频子带图像进行多尺度Retine x 增强 然后, 利用贝叶斯萎缩阈值法对高频子带图像进行阈值去噪, 并根据低频子带图像的局部对比度和模糊规则计算高频子带的增益系数, 从而得到增强后的高频子带图像 最后, 由低频子带图像和高频子带图像重构得到增强后的图像。针对大量图像进行了实验和增强效果的定性与定量评价, 并与双向直方图均衡法、二代小波变换法、Curvelet 变换法和多尺度Retinex法作了比较。结果表明, 所提出的方法增强了图像细节, 抑制了噪声, 并明显改善了图像的整体视觉效果。(As infrared image enhancement method based on wavelet transformation has the problem of unperfect visual effect , and Retinex enhancement algorithm can enhance visual effect of the image by improving brightness uniformity , amethod based on stationary wavelet transformation and Retinexis proposed.Firstly , the infrared image is decomposed into high-frequency detail and low-frequency approximation components at various resolutions, and the low frequency subband image of the largest scale is enhanced by multiscale Retinex algorithm.Then, the highfrequency subband images are denoised by Bayesian shrinkage method, and the gain coefficients of high-frequency subbands are available by calculating the local contrast of the enhanced low-frequency subband based on fuzzy rules to get the enhanced high-frequency subband images .Finally, the enhanced image is reconstructed by the low-frequency subband and high-frequency subbands .Experiments with qualitative and quantitative uation are carried ou)
- 2021-04-29 11:58:44下载
- 积分:1
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MATLABcode-2660
《MATLAB程序设计教程》源代码 ,很全,光盘拷贝的,希望对各位有帮助啊 ()
- 2007-08-25 13:25:00下载
- 积分:1
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QHQ-perfact
利用MATLAB,仿真偏振控制器(利用邦加球算法),验证固定偏振态到任意偏振态的转换,其结果布满整个邦加球(MATLAB simulation using polarimetric controller (with), fixed ball algorithm to any polarization transformation of polarization, and the result is full of whole nations plus the ball)
- 2009-12-14 11:41:11下载
- 积分:1
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TIchinese_A2153
Download Now:
Title: 802.11b PHY MATLAB Code
Author: Stuart McGarrity
Summary: 802.11b PHY MATLAB Code.
MATLAB Release: R13
Required Products: Communications Toolbox,Signal Processing Toolbox
Description: BER simulation of DBPSK, 1Mbps mode of 802.11b. Assumes perfect synchronization. Should work in earlier releases.
(Download Now: Title: 802.11b PHY MATLAB Code Author: Stuart McGarrity Summary: 802.11b PHY MATLAB Code. MATLAB Release: R13 Required Products: Communications Toolbox, Signal Processing Toolbox Description: BER simulation of DBPSK, 1Mbps mode of 802.11b. Assumes perfect synchronization. Should work in earlier releases.)
- 2010-09-22 07:04:02下载
- 积分:1
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CDMA-Gold-Sequence
A Matlab Script to generate Gold Code sequences with the help of XOR Function of two sequences
Note: XOR Function required for above script is also attached in rar file.Please find it.
- 2013-05-15 09:22:01下载
- 积分:1
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speaker1-GMM
基于GMM的说话人识别程序,提取梅尔倒谱特征进行训练(voice detection based on GMM)
- 2013-10-16 22:40:05下载
- 积分:1