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2008_2
(1) 在某些无线信道中，多普勒频移会引起无线信道输出信号的混叠。请描述产生混叠的各种原因；
(2) 无线信道中的多普勒谱有一种经典谱(classic spectrum)，请解释产生这种谱形状的机理；
(3) 请用Simulink工具编写代码(S-Function方式)，产生一单径瑞利信道，其多普勒谱为经典谱，其中移动速率为120km/h。并请回答：证明自己用计算机产生的经典谱是正确的可能方法。
((1) in certain wireless channel, the Doppler frequency shift will be caused by wireless channel output signal aliasing. Please describe the resulting aliasing of a variety of reasons (2) wireless channel Doppler spectrum there is a classical spectrum (classic spectrum), please explain such a spectral shape of the mechanism (3) Please use Simulink tools for writing code ( S-Function mode), resulting in a single Path Rayleigh channel, the Doppler spectrum for the classical spectrum, including mobile rate of 120km/h. And please answer: prove that they used computer-generated classical spectrum is correct possible ways.)
- 2020-12-30 11:39:00下载
- 积分：1
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LevelSet_ChunmingLi_v1
A new level set model without initialization, very time efficient compared with former level set model.(A new level set model without initializati on, very time efficient compared with former level set model.)
- 2007-04-10 22:40:11下载
- 积分：1
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dc-dynamic-braking
DC dynemic braking of induction motor
- 2014-10-16 17:49:57下载
- 积分：1
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NonLocalMeansFilter
非局部中值滤波 matlab代码,主要用于图像去噪，对于存在周期出现的图像有较好的效果，例如干涉图(Nonlocal median filter matlab code. It is mainly for image denoising and images with the existence of cycles are correspinding to good results, for example interferogram.)
- 2013-11-07 00:05:31下载
- 积分：1
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mlclass-ex1
implement linear regression
- 2015-02-17 22:32:25下载
- 积分：1
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FROG
Frequency-resolved optical gating
- 2014-02-17 18:59:09下载
- 积分：1
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signaldetection
电子科技大学《信号检测与估计课件，研究加性噪声中的检测与估计(Signal detection and estimate
)
- 2010-12-31 10:41:16下载
- 积分：1
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Target_Tracking_Simulation_Program
是本人编写的目标跟踪仿真程序（MATLAB），其中包含Imm算法，欢迎指教！(target tracking simulation program (MATLAB), which includes Imm algorithm, welcome improve!)
- 2006-08-27 01:08:38下载
- 积分：1
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1
matlab使用垂直Sobel算子，自动选择阈值
[VSFAT Threshold]=edge(f, sobel , vertical )
边缘探测
figure,imshow(f),title( 原始图像 ),
显示原始图像
figure,imshow(VSFAT),title( 垂直图像边缘检测 )
显示边缘探测图像
使用水平和垂直Sobel算子，自动选择阈值
SFST=edge(f, sobel ,2)
figure,imshow(SFST),title( 水平和垂直图像边缘检测 )
显示边缘探测图像
使用指定45度角
Sobel算子滤波器，指定阈值
s45=[-2 -1 0 -1 0 1 0 1 2]
SFST45=imfilter(f,s45, replicate )
SFST45=SFST45>=2
figure,imshow(SFST45),title( 45度角图像边缘检测 )
显示边缘探测图像
(matlab I=rgb2gray(I0)
J0=double(I) [VSFAT Threshold]=edge(f, sobel , vertical ) figure,imshow(f),title figure,imshow(VSFAT),title)
- 2013-12-18 15:42:14下载
- 积分：1
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masvect
Simulation sous simulink, de la machine asynchrone triphasée avec commande vectorielle, et modele dq de la MAS
- 2010-12-10 00:48:42下载
- 积分：1
