Search Results for author: V. H. Nascimento

Found 5 papers, 0 papers with code

Efficient Covariance Matrix Reconstruction with Iterative Spatial Spectrum Sampling

no code implementations2 Sep 2023 S. Mohammadzadeh, V. H. Nascimento, R. C. de Lamare, O. Kukrer

This work presents a cost-effective technique for designing robust adaptive beamforming algorithms based on efficient covariance matrix reconstruction with iterative spatial power spectrum (CMR-ISPS).

Study of Robust Adaptive Beamforming with Covariance Matrix Reconstruction Based on Power Spectral Estimation and Uncertainty Region

no code implementations18 Mar 2023 S. Mohammadzadeh, V. H. Nascimento, R. C. de Lamare, O. Kukrer

In this work, a simple and effective robust adaptive beamforming technique is proposed for uniform linear arrays, which is based on the power spectral estimation and uncertainty region (PSEUR) of the interference plus noise (IPN) components.

Energy-Efficient Distributed Learning Algorithms for Coarsely Quantized Signals

no code implementations13 Jan 2021 A. Danaee, R. C. de Lamare, V. H. Nascimento

In this work, we present an energy-efficient distributed learning framework using low-resolution ADCs and coarsely quantized signals for Internet of Things (IoT) networks.

Quantization

Low-Cost Maximum Entropy Covariance Matrix Reconstruction Algorithm for Robust Adaptive Beamforming

no code implementations28 Dec 2020 S. Mohammadzadeh, V. H. Nascimento, R. C. de Lamare

In this letter, we present a novel low-complexity adaptive beamforming technique using a stochastic gradient algorithm to avoid matrix inversions.

Study of Energy-Efficient Distributed RLS-based Learning with Coarsely Quantized Signals

no code implementations20 Dec 2020 A. Danaee, R. C. de Lamare, V. H. Nascimento

In this work, we present an energy-efficient distributed learning framework using coarsely quantized signals for Internet of Things (IoT) networks.

Quantization

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