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.

youdao

目前，正交频分复用(OFDM)技术因能在无线时变信道中进行高速数据传输而受到广泛的关注。

At present, more comprehensive attention has been taken to OFDM technology in data transmitting systems with wireless time-varying channel.

youdao

针对有限的数据信道波长对波分复用星形单跳网容量限制，提出了一种波长重用和多耦合器内连相结合的组网扩容方法。

In order to expand the capacities of WDM star networks and free them from the restriction caused by the limited number of wavelengths, a scheme of reusing wavelengths is proposed in this paper.

youdao