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eess.SP2025
On the Invariance of Cross-Correlation Peak Positions Under Monotonic Signal Transformations, with Application to Fast Time Difference Estimation
Natsuki Ueno, Ryotaro Sato, Nobutaka Ono
We present a theorem concerning the invariance of cross-correlation peak positions. This theoretical result provides the foundation for a new method for time difference estimation…
eess.SP2022
Estimation of Consistent Time Delays in Subsample via Auxiliary-Function-Based Iterative Updates
Kouei Yamaoka, Yukoh Wakabayashi, Nobutaka Ono
In this paper, we propose a new algorithm for the estimation of multiple time delays (TDs). Since a TD is a fundamental spatial cue for sensor array signal processing techniques, m…
eess.SP2020★ 11 cited
MM Algorithms for Joint Independent Subspace Analysis with Application to Blind Single and Multi-Source Extraction
Robin Scheibler, Nobutaka Ono
In this work, we propose efficient algorithms for joint independent subspace analysis (JISA), an extension of independent component analysis that deals with parallel mixtures, wher…