Search Results - "Ferreira, Luís H. C."
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An Approach to Savitzky–Golay Differentiators
Published in Circuits, systems, and signal processing (01-09-2019)“…This short paper presents a new approach to the calculation of Savitzky–Golay differentiators based on symmetric differentiation. Some comparisons with the…”
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A 60-dB Gain OTA Operating at 0.25-V Power Supply in 130-nm Digital CMOS Process
Published in IEEE transactions on circuits and systems. I, Regular papers (01-06-2014)“…This paper presents a 60-dB gain bulk-driven Miller OTA operating at 0.25-V power supply in the 130-nm digital CMOS process. The amplifier operates in the…”
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Insights From Robust Control Theory Into the Synchronization of Multiagent Systems
Published in IEEE transactions on automatic control (01-12-2023)“…In this article, the problem of synchronization of homogeneous linear multiagent systems considering a robust control and small gain theorem perspective is…”
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Classical Control System Analysis Over Lossy Networks: An Easy-to-Use Nyquist Plot Approach
Published in IEEE transactions on automatic control (01-06-2023)“…This article presents an approach based on the Nyquist plot to analyze the mean-square stability of a networked control system in which data transmission is…”
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An Improved Analytical PID Controller Design for Non-Monotonic Phase LTI Systems
Published in IEEE transactions on control systems technology (01-09-2012)“…An improved technique of analytical design of proportional-integral-derivative (PID) controllers in frequency-domain for non-monotonically decreasing phase…”
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Implementation of an ultra-low-power dynamic translinear loop at 0.25-V with Halo-implanted 130-nm MOSFETs
Published in Analog integrated circuits and signal processing (01-06-2015)“…This work describes the implementation of a dynamic translinear circuit in 130-nm digital process with the use of minimal size halo-implanted transistors…”
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An Ultra-Low-Voltage Ultra-Low-Power CMOS Miller OTA With Rail-to-Rail Input/Output Swing
Published in IEEE transactions on circuits and systems. II, Express briefs (01-10-2007)“…An ultra-low-voltage ultra-low-power CMOS Miller operational transconductance amplifier (OTA) with rail-to-rail input/output swing is presented. The topology…”
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On the Properties of Augmented Open-Loop Stable Plants Using LQG/LTR Control
Published in IEEE transactions on automatic control (01-08-2015)“…In this technical note are presented new properties on the application of the continuous- and discrete-time LQG/LTR control methodology when an open-loop…”
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A 0.25-V 22-nS symmetrical bulk-driven OTA for low-frequency Gm-C applications in 130-nm digital CMOS process
Published in Analog integrated circuits and signal processing (13-08-2014)“…This paper presents a 0.25-V supplied bulk-driven symmetrical OTA implemented in 130-nm CMOS process. By operating in weak inversion, and using a distributed…”
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Insights from Robust Control Theory into the Synchronization of Multi-Agent Systems
Published in IEEE transactions on automatic control (03-07-2023)“…This article concerns the problem of synchronization of homogeneous linear multi-agent systems considering a robust control and small gain theorem perspective…”
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Improved Independent and Uniform Multivariable Gain and Phase Margins in \mathcal /LTR Control
Published in IEEE transactions on automatic control (01-10-2021)“…In this article, we presented guaranteed independent and uniform multivariable stability margins for the <inline-formula><tex-math notation="LaTeX">\mathcal…”
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Improved Independent and Uniform Multivariable Gain and Phase Margins in [Formula Omitted]/LTR Control
Published in IEEE transactions on automatic control (01-01-2021)“…In this article, we presented guaranteed independent and uniform multivariable stability margins for the [Formula Omitted]/LTR control, both in continuous and…”
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A New Look at the Target Feedback Loop Parameterization for $$\mathcal {H}_{\infty }$$ H ∞ /LTR Control
Published in Journal of control, automation & electrical systems (01-08-2014)Get full text
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An ultra-low-power first-order asynchronous sigma-delta modulator for biomedical applications
Published in 2013 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S) (01-10-2013)“…In this paper an ultra-low-power first-order asynchronous sigma-delta modulator (ASDM) for biomedical applications in weak inversion is presented. It combines…”
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Conference Proceeding -
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Loop transfer recovery design for synchronization of homogeneous linear multi-agent systems
Published in Automatica (Oxford) (01-11-2020)“…In this paper we propose the use of loop transfer recovery procedure in the context of cooperative control to aid the design of output feedback synchronization…”
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A New Look at the Target Feedback Loop Parameterization for H∞/LTR Control
Published in Journal of control, automation & electrical systems (2014)“…In this paper, a new approach on the target feedback loop (TFL) parameterization for the H ∞ /loop transfer recovery (LTR) control is presented. The proposed…”
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A sub-threshold halo implanted MOS implementation of Izhikevich neuron model
Published in 2013 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference (S3S) (01-10-2013)“…This work describes a current mode implementation of Izhikevich neuron model implemented with halo implanted devices 130 nm structured within matrices of order…”
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Conference Proceeding -
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A 0.3-V 37-nW 53-dB SNDR Asynchronous Delta-Sigma Modulator in 0.18- \mu m CMOS
Published in IEEE transactions on very large scale integration (VLSI) systems (01-02-2019)“…A new solution for an ultralow-voltage bulk-driven (BD) asynchronous delta-sigma modulator is described in this paper. While implemented in a standard…”
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A 0.3-V 37-nW 53-dB SNDR Asynchronous Delt–Sigma Modulator in 0.18-[Formula Omitted]m CMOS
Published in IEEE transactions on very large scale integration (VLSI) systems (01-01-2019)“…A new solution for an ultralow-voltage bulk-driven (BD) asynchronous delt–sigma modulator is described in this paper. While implemented in a standard…”
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