OFDM是一种无线传播环境下的高速传输技术，适合在多径传播和多普勒频移的无线信道中传输高速数据。
OFDM is a high transmission technology in the wireless propagation environment. It is fitted to transmit high-speed data in the wireless channel which has multi-path delay and Doppler frequency shift.
现阶段，在众多的无线技术当中，OFDM作为一种可以有效对抗信号波形间干扰的高速传输技术，已引起了人们的广泛关注。
Nowadays, among the various wireless technologies, OFDM as a high-speed transmission technology can effectively fight against wave signal interference, has attracted wide attention.
他们说，这会使通信网络中高速、高保真、大容量的信息传输，如量子密钥技术，成为可能。
They say it will make possible high-speed, high-fidelity transmission of large volumes of information, such as quantum encryption keys, via communications networks.
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