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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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U
说明: 基于QR分解的最小二乘算法,在工程领域有很大的应用(QR decomposition based least squares algorithm, in the engineering field has a lot of applications)
- 2008-05-16 02:18:12下载
- 积分:1
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linefitting
linefitting and curve fitting
- 2012-04-26 21:02:46下载
- 积分:1
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equalizer
用Viterbi algorithm筛选经过含白噪声的信息。equalizer为采用Viterbi algorithm,有效减少ISI(码间串扰),detector为简单的检验器。对比两者的误码率。信息数量为10001bit(using Viterbi algorithm method selecting the data. compared with simple detector. data length are 10001bits. Viterbi algorithm can reduce the affect of ISI (intersymbol interference))
- 2012-04-30 16:54:33下载
- 积分:1
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pxc3895670
fbmc ofdm resource allocation
- 2014-10-28 13:47:20下载
- 积分:1
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Mature_image_4
It is helpful in classifying the maturity stage of cotton.
- 2013-11-24 17:14:32下载
- 积分:1
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zuisu
数学模型中最速下降法matlab程序(包括算法)(The mathematical model of the steepest descent method procedures (including algorithms))
- 2012-11-18 14:14:49下载
- 积分:1
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blurred-image
blurred image generation matlab code
- 2012-01-23 15:09:40下载
- 积分:1
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examples
为便于交流提高学术水平,我们应该提供一些免费的好的源代码(In order to facilitate the exchange to raise academic standards, we should provide some good free source code)
- 2007-11-23 18:50:52下载
- 积分:1
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MallatAlgorithm
超好用的Mallat Algorithm碼源,附gui的介面,有註解可對照,試試呗(Chao Haoyong The Mallat Algorithm source code, with a gui interface, there are notes can be controlled, try chanting)
- 2009-11-09 15:54:58下载
- 积分:1