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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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pls
这是做偏最小二乘回归的软件代码,在matlab中可以实现(This is so partial least-squares regression of the software code in matlab can be achieved in)
- 2009-01-02 14:29:15下载
- 积分：1
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uceftdce
欢迎大家下载学习，用MATLAB实现的压缩传感，Relief计算分类权重，包括最小二乘法、SVM、神经网络、1_k近邻法,研究生时的现代信号处理的作业，在MATLAB中求图像纹理特征。(Welcome to download the study, Using MATLAB compressed sensing, Relief computing classification weight, Including the least squares method, the SVM, neural networks, 1 _k neighbor method, Modern signal processing jobs when the graduate, In the MATLAB image texture feature.)
- 2016-03-12 00:50:39下载
- 积分：1
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gold
gold序列的生成 PN序列Gold序列极好的自相关性 生成64位的PN序列
(Gold sequence generated PN sequence gold sequence excellent correlation
)
- 2020-11-10 23:29:47下载
- 积分：1
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gonglvpu
功率谱：直接法，间接法，加窗（hamming ,hanning, 矩形）(Power spectrum: the direct method, indirect method, window (hamming, hanning, rectangle))
- 2010-06-21 22:48:19下载
- 积分：1
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PSK8
说明： 关于8PSK解的信噪比和调误码率的仿真程序(8PSK solution on the signal to noise ratio and bit error rate of transfer simulation program)
- 2008-10-18 09:39:19下载
- 积分：1
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MAEA
说明： 基于MATLAB的遗传算法的源程序,有需要的可以参考下 (Genetic Algorithm Based on MATLAB source, there is a need to make reference to the next)
- 2008-11-25 14:07:37下载
- 积分：1
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boundary
boundary problem in math
- 2010-05-08 19:10:36下载
- 积分：1
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pca
主元分析理论分析及应用，对pca的理论进行了通俗易懂的解释，是一个不错的初学教程。(Principal Component Analysis and application)
- 2010-05-24 13:31:43下载
- 积分：1
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-controller-pid
主要是进行控制器参数的优化，里面利用一个(controller pid parament )
- 2012-06-08 12:44:32下载
- 积分：1
