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2
说明： 2. 关于无线信道的多普勒谱，请回答以下问题：
(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。
(On the wireless channel of the Doppler spectrum, please answer the following questions: (1) In some radio channels, the Doppler frequency shift will cause the output signal of the wireless channel aliasing. Please describe the aliasing produced a variety of reasons (2) wireless channel in the Doppler spectrum has a classical spectrum (classic spectrum), please explain the mechanism of produce such spectral shape (3), please use the Simulink tool to write 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 requested the answer: that they used computer-generated classical spectrum is the right possible way.)
- 2009-11-08 15:50:50下载
- 积分：1
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网络层源代码
说明： 汽车诊断协议 基于UDS的网络层源代码(Network Layer Source Code Based on UDS for Automobile Diagnosis Protocol)
- 2019-02-19 20:05:39下载
- 积分：1
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sum_rate
计算系统和速率，利用MATLAB进行仿真，画出曲线图(sumrateThis program is a non-orthogonal environment, within a two-user subcarrie)
- 2021-02-25 22:49:38下载
- 积分：1
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EVALDVBS2_STMICROELECTRONICS_130762
LDPC校验矩阵生成、高斯消去法编码、BP译码程序，可以作为自己编写LDPC编译码程序的参考。因为matlab代码效率不高，所以这个程序仿真起来比较慢.(LDPC check matrix generation, Gaussian elimination coding, BP decoding procedure can be used as its own procedures for the preparation of LDPC codec reference. Because matlab code efficiency is not high, so this process is relatively slow simulation together.)
- 2008-05-22 23:07:12下载
- 积分：1
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QQ
这是一个实现CS的QQ，并带有链接数据库的功能，主要功能有注册，群聊，私聊等(This is a realization of C S of the QQ, and with a link to a database functions, the main function of registration, group chat, private chat, etc.)
- 2013-07-15 16:09:07下载
- 积分：1
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WINSOCK-UDP
基于VC++ 6.0 Winsock+UDP 广播信息源码(Based on VC++ 6.0 Winsock+ UDP broadcast source)
- 2011-09-22 21:10:05下载
- 积分：1
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Modulation
几篇关于信号调制参数提取和识别的硕士论文，不错，希望有所帮助！(Several articles on the signal modulation parameter extraction and identification of the master' s thesis, well, I hope some help!)
- 2011-08-21 22:34:38下载
- 积分：1
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main_OFDM
说明： LTE ofdm编码调制解调仿真，平台为matlab(Simulation of OFDM coded modulation and demodulation)
- 2021-02-02 00:06:04下载
- 积分：1
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AWGN
说明： qpsk在高斯信道下的仿真，包括误码率和仿真图(Simulation of QPSK in Gaussian channel)
- 2019-01-01 16:14:30下载
- 积分：1
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bui_vw76
Virtual power wireless sensor network coverage, Join repetitive control, Energy spectrum analysis and calculation.
- 2017-11-03 11:07:03下载
- 积分：1
