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正交频分复用(ofdm) 是第四代移动通信的核心技术。该文首先简要介绍了ofdm基本原理,重点研究了理想同步情
况下,保护时隙(CP) 和不同的信道估计方法在高斯信道和多径瑞利衰落信道下对ofdm系统性能的影响。在给出ofdm系
统模型的基础上,用MATLAB语言实现了整个系统的计算机仿真并给出参考设计程序。最后给出在不同的信道条件下,保
护时隙、信道估计方法对ofdm系统误码率影响的比较曲线,得出了较理想的结论。-Orthogonal frequency division mult
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重点研究
了低信噪比﹑多径瑞利衰落信道条件下,基于高阶累积量的ofdm信号盲识别技
术。提出了利用奇数阶累积量区分ofdm信号与单载波信号的方法,并对基于三
阶和五阶累积量的算法进行了仿真分析。
-﹑ Focus on the low SNR multipath Rayleigh fading channel conditions, based on cumulant ofdm signal blind identification technology. Made a dist
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0下载:
Orthogonal Frequency Division Multiplexing (ofdm)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for ofdm systems. The
synchroni
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0下载:
Orthogonal Frequency Division Multiplexing (ofdm)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for ofdm systems. The
synchroni
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0下载:
Orthogonal Frequency Division Multiplexing (ofdm)
systems are more sensitive to timing and frequency offsets than
single carrier systems. This Paper presents a method of joint time
and frequency synchronization for ofdm systems. The
synchroni
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