This motivates expansion of the time varying channel impulse response over a basis. Rather than estimating the time-invariant coefficients of this basis expansion, it is possible to equalize the channel output directly even when the input is not known. This requires multichannel data as well as a...
time-varying 英['taɪmv'eərɪɪŋ] 美['taɪmv'eərɪɪŋ] 释义 随时间变化,时变 实用场景例句 全部 Finally it can construct the impulse response of time - varying channel. 最后,应用估计的小波系数即可重构时变信道的冲激响应....
Time domain channel estimation (TD-CEMIMOChannel impulse responseChannel frequency responseNon-Nyquist rateThis paper proposes a time domain channel estimation (TD-CE) method for Multi Input Multi Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) systems. The feature of proposed TD-CE ...
In this paper, we first generalize the conventional price discovery impulse response function (IRF) to its time-varying counterpart. Time-varying information share (IS) and the general variance decomposition (VD) are defined accordingly. Using the as- ymptotic theories developed in Li, Ling and ...
We consider the Channel Impulse Response (CIR) coefficients with a critical Doppler frequency shift and multi-path fading that were taken from the WINNER II channel model and the D2a propagation scenario, where the conditions of HSR are analyzed. As multi-path fading increases and the channel ...
In this work, we demonstrate, through an extensive simulation study, the effectiveness of our proposed LMF-PTQ algorithm in the equalization of a time-varying channel in a CDMA system which suffers from both signal dispersion and non-Gaussian disturbances. The results obtained so far are very ...
Time-Varying and Multiresolution Envelope Analysis and Discriminative Feature Analysis for Bearing Fault Diagnosis This paper then performs frequency analysis for the selected time-domain AE signal by using multilevel finite-impulse response filter banks to obtain the ... M Kang,J Kim,LM Wills,......
This was carried out by truncating the channel impulse response (CIR) in mathematical analysis into two parts, the so-called truncated channels. The same technique is used in this paper to compute the ISI and ICI components for the case of time-varying channels, where again the WSSUS ...
The proposed technique keeping the comb-type pilot arrangement can achieve a low error probability by accurately estimating channel impulse response (CIR) and effectively tracking rapid CIR time variations. The LS CE technique proposed here is conducted in the time domain (TD). Meanwhile, a generic...
2. Time Reversal Time reversal (TR) is a transmission scheme in which a time reversed channel impulse response (CIR) is used as a transmitter prefilter. In a first step, the CIR is estimated between a transmitter and a receiver. Then the CIR is flipped in time and emitted by the ...