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Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system
Channels estimation for multiple input—multiple output, orthogonal frequency division multiplexing (OFDM) system
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机译:多输入多输出正交频分复用(OFDM)系统的信道估计
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摘要
The distortion in the sub-carrier signals is determined by transmitting known values that are incorporated into the preamble portion of the frame and/or are incorporated into pilot symbols that are inserted into the data portion of the frame. The receiver typically receives these known values in a distorted form and then processes the distorted values together with the original known values to obtain a channel response. The channel response is then used to estimate the frequencies at which the channels are received.
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