Sliding Window Evaluation of the Wiener-Hopf Equation

A. Kraker, B. Csuka, Zs. Kollar

Sliding Window Evaluation of the Wiener-Hopf Equation

Číslo: 2/2020
Periodikum: Radioengineering Journal
DOI: 10.13164/re.2020.0365

Klíčová slova: adaptive filtering, sliding window Wiener filter, Wiener-Hopf equation, recursive matrix inversion, RSC4BI, SWF

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Anotace: This paper presents an efficient method for solving the Wiener-Hopf equation in a sliding window by calculating the correlation matrices recursively. Furthermore, a novel algorithm is introduced for evaluating the inverse of the auto-correlation matrix - the Recursion with Splitting the Correlation matrix into 4 Blocks for Inversion - which can significantly reduce the computational requirements. The presented procedure is optimized for special cases to achieve an efficient implementation which allows faster rel-time signal processing or to reduce the response time - e.g. the latency -- by distributing the computations over the time. The proposed method is also validated through numerical simulations and hardware implementation.