正交频分复用调制

Orthogonal frequency division multiplexing modulation

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1
Orthogonal Frequency Division Multiplexing
正交频分复用调制(Orthogonal Frequency Division Multiplexing, OFDM)是一种多载波调制技术，其子载波之间保持正交性，有重叠。
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OFDM
正交频分复用调制（OrthogonalFrequencyDivision Multiplexing，OFDM）是一种多载波调制技术，其予载波之问保持正交性，有重叠。

短语

1
正交频分复用调制（OFDM）是一种信道利用率很高的调制方式，具有良好的抗衰落能力，可实现并行传送。
OFDM is a modulation method which was often used in the channels. It has better capability against the fading and can realized parallel transmission.
2
本文研究了自适应正交多载波频分复用（AOFDM）中根据估计出的信道特性选择调制方式的问题。
The problem of how to choose the constellation size based on the estimated channel qualities in AOFDM systems is addressed in this paper.
3
正交频分复用(OFDM)是一种新型调制技术，特别适合在多径传播的无线移动信道中高速传输数据。
OFDM (Orthogonal Frequency Division Multiplexing) is a new modulation technology, it is suitable to high-data-rate transmission in the wireless transfer channel with multi-path transmission.

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