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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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OFDM
Matlab入门级OFDM仿真，包括每个步骤的波形，星座图，频谱等
含循环前后缀，时域加窗等，适合刚接触OFDM的学习
(Matlab entry-level OFDM simulation, including each step of the waveform, constellation diagram, spectrum including cycles before the suffix, such as time-domain windowing for OFDM new to the learning)
- 2021-03-01 16:49:34下载
- 积分：1
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BER-pts
说明： 降低OFDM系统PAPR的pts算法的仿真程序，已经在matlab下仿真过。(lower OFDM algorithm pts PAPR of the simulation program, already under Matlab simulation too.)
- 2020-10-26 10:10:00下载
- 积分：1
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Estimate cfo
基于OFDM系统，实现classen,Moose提出的频偏估计技术，(Frequency offset estimation technique proposed by Classen and Moose based on OFDM sys)
- 2017-11-10 09:42:35下载
- 积分：1
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rs_code_sys
rs码通信系统的仿真实验，包括源程序和说明(rs code communication system simulation, including source and description)
- 2021-04-27 10:58:44下载
- 积分：1
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Communication_Network20071017_12
主要介绍ofdm中各种信道估计方法，包含一维和二维信道估计方法(Introduces the OFDM channel estimation in a variety of methods, including the one-dimensional and two-dimensional channel estimation methods)
- 2021-03-17 20:59:21下载
- 积分：1
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efzicinnt
车载设备写码说明 关于现在的CDMA改ENS码的资料~真的很有用的呀！你可以自己解决这个问题！(On-board equipment to write code on the current CDMA to ENS code data ~ really useful ah! You can solve this by yourself!)
- 2019-03-28 15:35:08下载
- 积分：1
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partial-transmit-sequence
this is the program for finding peak power in ofdm using pts
- 2014-01-21 12:06:38下载
- 积分：1
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[MATLAB]最小和LDPC译码算法MATLAB实现(285266)
LDPC码的编译码算法，matlab实现，包含常用的生成算法和解码算法。可以直接运行(LDPC code encoding and decoding algorithm, matlab implementation, including the common generation algorithm and decoding algorithm. Can run directly)
- 2017-12-27 14:36:21下载
- 积分：1
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RS_BCH
本压缩包收集了较为经典的几种关于BCH和RS编译码的matlab程序，以及通信系统的仿真等。供大家参考学习，搬运整理而得(This compression package collects several classical matlab programs about BCH and RS coding and decoding, as well as the simulation of communication system. For your reference and study, handling and sorting out)
- 2019-05-02 18:00:48下载
- 积分：1
