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Best linear unbiased channel estimation for frequency selective multipath channels with long delay spreads
Best linear unbiased channel estimation for frequency selective multipath channels with long delay spreads
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机译:具有长延迟扩展的频率选择性多径信道的最佳线性无偏信道估计
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摘要
A channel impulse response for a channel is determined by determining an initial channel impulse response estimate based upon a stored training sequence and a received signal, by thresholding the initial channel impulse response estimate, by estimating a noise variance for the channel based upon the stored training sequence, the thresholded initial channel impulse response estimate, and the received signal, by determining an inverse of a covariance matrix based on the estimated noise variance and the thresholded initial channel impulse response estimate, by updating the channel impulse response based on the inverse covariance matrix, the stored training sequence, and the received signal, and by thresholding the updated channel impulse response estimate.
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