The offset of carrier frequency can cause interference between subchannels in a multicarrier system.

对于多载波系统，载波频率的偏移会导致子信道之间产生干扰。

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In FDM (typically used for analog signals) the channel is subdivided into subchannels, each with a different frequency width that is assigned to a specific signal.

在分频多任务（用于模拟讯号），信道切割成次信道，每个信道具有不同的频率宽度，指定给特定的讯号。

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In this paper, we prove that oversampling the output of IIR channels can be transformed into a single input multiple output (SIMO) model, and the subchannels have the same AR coefficients.

本文证明了对IIR信道输出进行过采样(采样率是输入码率的整数倍)可以转化成单输入多输出的多信道模型，并且不同的信道有相同的AR系数。

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There are currently 28 channels available over-the-air in New York City, including major networks, subchannels and specialty channels like NYCTV and iON.

WSJ: For Live TV on the Go, Aereo Is Impressive But Limited