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Sistema integrado de baixo consumo para aquisição de ECG e cálculo da VFC
(Universidade Federal de Santa MariaBrasilCiência da ComputaçãoUFSMPrograma de Pós-Graduação em Ciência da ComputaçãoCentro de Tecnologia, 2020-02-19)
This work proposes a low power consumption analog front-end to acquire ECG signals and
calculate heart rate variability (HRV), which has several biomedical applications. Many QRS
detectors use digital techniques (software) ...
Design of an Ultra-Low Voltage Analog-Front-End for an Electroencephalography System
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2015)
Design of an Ultra-Low Voltage Analog-Front-End for an Electroencephalography System
(Instituto Tecnológico y de Estudios Superiores de Monterrey, 2009-06-01)
EVM Analysis for Broadband OFDM Direct-Conversion Transmitters
(Institute of Electrical and Electronics Engineers, 2013-09)
Low-cost OFDM direct-conversion transceivers suffer from signal degradation through the impairments of the analog front-end, e.g., due to in-phase and quadrature (IQ) imbalance, phase noise, and nonlinear power amplifier ...
Biopotential monitoring
(Elsevier, 2019)
Biopotentials measurements are essential for biological research and biomedical monitoring of excitable tissues. This chapter provides an overview of biopotential monitoring, from the biological basis to the circuit and ...
Optimal scintillation time estimation through analog filters
(2023)
Scintillator crystals are a widespread solution for detecting high-energy radiation. These crystals spread the energy of the particle over time, which fundamentally limits the time resolution that can be obtained. This is ...