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OFDM通信系统

于 2020-10-27 发布

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下载积分: 1 下载次数: 2

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说明：一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道(A relatively complete OFDM communication system simulation design, including coding, modulation, IFFT, up and down conversion, Gaussian channel)

文件列表：

OFDM通信系统\add_CYC_upsample.m, 775 , 2009-03-21
OFDM通信系统\bin2deci.m, 428 , 2009-03-21
OFDM通信系统\cic_deci.m, 761 , 2009-03-21
OFDM通信系统\cic_inter.m, 786 , 2009-03-21
OFDM通信系统\cnv_encd.m, 1812 , 2009-03-21
OFDM通信系统\deci2bin.m, 534 , 2009-03-21
OFDM通信系统\deqpsk.m, 476 , 2009-03-21
OFDM通信系统\down_convert_ofdm.m, 1260 , 2009-03-21
OFDM通信系统\fft_my.m, 919 , 2009-03-21
OFDM通信系统\fre_syn.m, 1732 , 2009-03-21
OFDM通信系统\guiyi_DUCdata.m, 514 , 2009-03-21
OFDM通信系统\interlacecode.m, 627 , 2009-03-21
OFDM通信系统\interlacedecode.m, 569 , 2009-03-21
OFDM通信系统\main_OFDM.m, 8654 , 2009-03-21
OFDM通信系统\metric.m, 541 , 2009-03-21
OFDM通信系统\m_sequence.m, 754 , 2009-03-21
OFDM通信系统\nxt_stat.m, 481 , 2009-03-21
OFDM通信系统\nyquistimp_PS.m, 1829 , 2009-03-21
OFDM通信系统\OFDM 仿真源程序.doc, 161792 , 2009-03-21
OFDM通信系统\phase_comp.m, 796 , 2009-03-21
OFDM通信系统\qpsk.m, 502 , 2009-03-21
OFDM通信系统\ram_sin.m, 652 , 2009-03-21
OFDM通信系统\seq_train.m, 1473 , 2009-03-21
OFDM通信系统\time_syn.m, 3672 , 2009-03-21
OFDM通信系统\up_convert_ofdm.m, 1066 , 2009-03-21
OFDM通信系统\viterbi.m, 3496 , 2009-03-21
OFDM通信系统, 0 , 2009-08-14

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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.)

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