基于正交频分复用的频域差分幅度相位调制

束锋; 吴乐南

基于正交频分复用的频域差分幅度相位调制

束锋,
吴乐南

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- 被引次数: 0
出版历程
- 收稿日期: 2000-12-06
- 修回日期: 2001-06-11
- 刊出日期: 2002-04-19

Frequency-domain DAPSK+OFDM

Shu Feng,
Wu Lenan

摘要

摘要: 该文提出一种基于频域的幅度两电平的DAPSK+OFDM,并讨论该调制方式在频域的差分调制和解调,然后给出它在白高斯信道的误比特性能公式。最后在典型的调幅(AM)波段信道对它和基于时域的DAPSK+OFDM的误比特性能进行了仿真。结果表明:在短波信道,频域的DAPSK+OFDM比时域的DAPSK+OFDM性能好;在中波信道,时域的DAPSK+OFDM比频域的DAPSK+OFDM性能好。因此,数字调幅广播系统在短波信道可采用频域DAPSK+OFDM,在中长波信道可采用时域DAPSK+OFDM
- 差分幅度相位调制; 正交振幅调制; 正交频分复用; 数字调幅广播
Abstract: In this paper, a new frequency-domain DAPSK+OFDM is proposed. Its modulation and demodulation are discussed, and its BER performance is analysed in AWGN channel. In the case f the typical AM channel, the simulation results indicate that the BER performance of frequency-domain DAPSK+OFDM is better than that of time-domain DAPSK+OFDM in Short Wave (SW) channel but poorer in Medium Wave (MW) channel. In short, it is reasonable to use frequency-domain DAPSK+OFDM in SW channel and time-domain DAPSK+OFDM in MW and Long Wave (LW) channel.

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参考文献(1)

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