Person

Ricardo Merched

This person is no longer with EPFL

Related publications (9)

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Frequency-Domain Diffusion Adaptation Over Networks

Ali H. Sayed, Ricardo Merched, Shuo Zhang

This paper analyzes the implementation of least-mean-squares (LMS)-based, adaptive diffusion algorithms over networks in the frequency-domain (FD). We focus on a scenario of noisy links and include a moving-average step for denoising after self-learning to ...

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC2021

Extended fast fixed order RLS adaptive filters

Ali H. Sayed, Ricardo Merched

The existing derivations of conventional fast RLS adaptive filters are intrinsically dependent on the shift structure in the input regression vectors. This structure arises when a tapped-delay line (FIR) filter is used as a modeling filter. We show, unlike ...

IEEE2001

RLS-Laguerre lattice adaptive filtering: error-feedback, normalized, and array-based algorithms

Ali H. Sayed, Ricardo Merched

This paper develops several lattice structures for RLS-Laguerre adaptive filtering including a posteriori and a priori based lattice filters with error-feedback, array-based lattice filters, and normalized lattice filters. All structures are efficient in t ...

IEEE2001

Orthonormal realization of fast fixed-order RLS adaptive filters

Ali H. Sayed, Ricardo Merched

The existing derivations of fast RLS adaptive filters are dependent on the shift structure in the input regression vectors. This structure arises when a tapped-delay line (FIR) filter is used as a modeling filter. In this paper, we show, unlike what origin ...

2001

Order-recursive RLS Laguerre adaptive filtering

Ali H. Sayed, Ricardo Merched

This paper solves the problem of designing recursive-least-squares (RLS) lattice (or order-recursive) algorithms for adaptive filters that do not involve tapped-delay-line structures. In particular, an RLS-Laguerre lattice filter is obtained. ...

IEEE2000

An embedding approach to frequency-domain and subband adaptive filtering

Ali H. Sayed, Ricardo Merched

Frequency-domain and subband implementations improve the computational efficiency and the convergence rate of adaptive schemes. The well-known multidelay adaptive filter (MDF) belongs to this class of block adaptive structures and is a DFT-based algorithm. ...

IEEE2000

Exact RLS Laguerre-lattice adaptive filtering

Ali H. Sayed, Ricardo Merched

This paper solves the problem of designing an exact RLS lattice (or order-recursive) algorithms for adaptive filters that do not involve tapped-delay-line structures. As a special case, an exact RLS Laguerre lattice filter is obtained. ...

2000

Fast RLS Laguerre adaptive filtering

Ali H. Sayed, Ricardo Merched

1999

Block trigonometric transform adaptive filtering

Ali H. Sayed, Ricardo Merched

Frequency-domain implementations improve the computational efficiency and the convergence rate of adaptive schemes. This paper develops frequency-domain adaptive structures that are based on the trigonometric transforms DCT and DST. The structures involve ...

1998