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Stable QR Decomposition-Based EX-RLS Algorithms
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DOI：10.1016/j.dsp.2026.106170.png)
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Abstract
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• Numerically stable QR-based EX-RLS algorithms for real-time adaptive signal processing. • Kalman-equivalent tracking performance preserved under finite-precision constraints. • Robust operation in time-varying DSP applications, including channel tracking and digital predistortion.
Keywords:
Adaptive filtering
Extended recursive least squares (EX-RLS)
QR decomposition
Numerical stability
Finite-precision signal processing
Time-varying systems
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