Estimation of Channel Impulse Response by Deconvolution Method
نویسندگان
چکیده
This paper describes deconvolution method for estimation of channel impulse response. Radio channels in radio system can be completely described by channel impulse response. We can investigate radio channel type from channel impulse response. In environment between transmitter and receiver there exist two main propragation components, Line-of-Sight (LOS) and Non-Line-of-Sight (NLOS), which are described by Rician channel model, resp. Rayleigh fading model.
منابع مشابه
Two-channel blind deconvolution for non-minimum phase impulse responses
A new blind deconvolution method is proposed for recovering an unknown source signal, which is observed through two unknown channels characterized by non-minimum phase impulse response filters. Conventional methods cannot estimate the nonminimum phase parts. Our method is based on computing the eigenvector corresponding to the smallest eigenvalue of the input correlation matrix and using a cost...
متن کاملEmpirical Mode Decomposition based Adaptive Filtering for Orthogonal Frequency Division Multiplexing Channel Estimation
This paper presents an empirical mode decomposition (EMD) based adaptive filter (AF) for channel estimation in OFDM system. In this method, length of channel impulse response (CIR) is first approximated using Akaike information criterion (AIC). Then, CIR is estimated using adaptive filter with EMD decomposed IMF of the received OFDM symbol. The correlation and kurtosis measures are used to sel...
متن کاملAn Adaptive Blind Deconvolution Signal Subspace Method
A blind deconvolution algorithm is introduced. The channel parameters are identi ed based on Maximum Likelihood (ML) criterion and the desired input is estimated using minimum variance estimation. Simulation results show the e cacy of our method. Its estimation error is usually less than other algorithms. Its rate of convergence is su ciently high and compete the others. Although, the algorithm...
متن کاملA Comparison of Estimation Methods for the Vhf Voice Radio Channel
Abstract. The aim of ongoing studies is to build a simulation model of the aeronautical VHF voice radio channel based on an analysis of previous measurements. A linear filter model is used to characterize the relation between measured input and output signals of a voice radio channel. Six well-established methods to estimate the channel impulse response are compared in terms of their accuracy a...
متن کاملPractical Low Complexity Linear Equalization for MIMO-CDMA Systems
This article first reviews recently proposed techniques for adaptive and direct linear MIMO equalization in the context of MIMO-CDMA systems and in particular with application to a MIMO-extended UMTS-FDD downlink. The focus is thereby mainly on the complexity of the algorithms. The second part of the paper proposes frequency domain (FD) MIMO equalization using the overlap/add FFT method in conj...
متن کامل