Title

A frequency domain state‐space approach to LS estimation and its application in turbo equalization

RIS ID

79499

Publication Details

Q. Guo & D. Huang, "A frequency domain state‐space approach to LS estimation and its application in turbo equalization," IEEE Transactions on Signal Processing, vol. 59, (11) pp. 3288-3300, 2011.

Abstract

A frequency domain state-space approach to the least squares (LS) estimation for finite impulse response (FIR) system identification is proposed by exploiting the Toeplitz structure of the data matrix, leading to two low-complexity FFT (fast Fourier transform)-based unbiased recursive estimators. The proposed recursive estimators are applied to the smoothing estimation of timevarying frequency selective channels in turbo equalization systems, and channel estimation approaches with complexity 􀀀 per symbol are developed, where is the number of channel taps.

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Link to publisher version (DOI)

http://dx.doi.org/10.1109/TSP.2011.2135857