Ingeniería Electrónicahttps://ri.itba.edu.ar/handle/123456789/682024-03-28T09:31:08Z2024-03-28T09:31:08Z4117-Level asymmetric multilevel current source inverter with predictive controlCossutta, PabloAguirre, Miguel PabloMuñoz, JavierRivera, MarcoMelín, PedroRohten, Jaimehttps://ri.itba.edu.ar/handle/123456789/15452022-12-07T17:13:26Z2018-01-01T00:00:00Zdc.title: 7-Level asymmetric multilevel current source inverter with predictive control
dc.contributor.author: Cossutta, Pablo; Aguirre, Miguel Pablo; Muñoz, Javier; Rivera, Marco; Melín, Pedro; Rohten, Jaime
dc.description.abstract: "In this paper a 7-Level Asymmetric Multilevel Current Source Inverter is presented. The topology considers two Current Source Inverters that follow a 1:2 ratio to generate the multilevel current waveform. A Model Predictive Control is used to track the internal current and voltage references as
well as to keep the asymmetric ratio between the DC currents even during transient conditions. To properly use the predictive algorithm, the modelling equations of the presented topology are
systematically obtained in continuous and discrete time domains, considering the characteristic constraints of a Current Source Inverter. Simulated dynamic tests are presented in order to prove
the feasibility of the asymmetric approach and the properness of the predictive control technique."
2018-01-01T00:00:00ZA chopped front-end system with common-mode feedback for real time ECG applicationsGardella, PabloVilla Fernández, EmanuelBaez, EduardoCesaretti, Juan Manuelhttps://ri.itba.edu.ar/handle/123456789/17152022-12-07T17:14:02Z2017-01-01T00:00:00Zdc.title: A chopped front-end system with common-mode feedback for real time ECG applications
dc.contributor.author: Gardella, Pablo; Villa Fernández, Emanuel; Baez, Eduardo; Cesaretti, Juan Manuel
dc.description.abstract: "A Front-End system composed of an instrumentation amplifier with common-mode feedback and a
second-order sigma-delta analog to digital converter is proposed. Chopping techniques are used to remove offset and low frequency noise to guarantee a noise floor below the signal of interest. Measurements show that common-mode feedback adds 71 dB to the CMRR at 50 Hz and the input referred noise is 1.17 μVRMS over the frequency range of 0.1 Hz to 400 Hz."
2017-01-01T00:00:00ZAdvertise your A/D converter, a SP teaching strategySaint-Nom, Roxanahttps://ri.itba.edu.ar/handle/123456789/40052022-12-07T17:13:43Z2010-03-01T00:00:00Zdc.title: Advertise your A/D converter, a SP teaching strategy
dc.contributor.author: Saint-Nom, Roxana
dc.description.abstract: "The goal of this paper is to invite the reader to consider role-playing as a method to train Signal Processing students for professional functions they would undertake in their future careers. Interaction, communication skills and learning purposes of SP concepts are key elements of this approach. An example applied to Analog to Digital converters is detailed, to show the advantages of this technique and the enthusiasm awakened."
2010-03-01T00:00:00ZApplication of robust control to a cryogenic current comparatorBierzychudek, Marcos E.Götz, MartinSánchez-Peña, RicardoIuzzolino, RicardoDrung, Dietmarhttps://ri.itba.edu.ar/handle/123456789/16902023-01-13T17:47:10Z2017-06-01T00:00:00Zdc.title: Application of robust control to a cryogenic current comparator
dc.contributor.author: Bierzychudek, Marcos E.; Götz, Martin; Sánchez-Peña, Ricardo; Iuzzolino, Ricardo; Drung, Dietmar
dc.description.abstract: "This paper describes the implementation of a digital robust controller in a cryogenic current comparator. The controller was designed applying H∞ control theory and it was programmed in a home-made digital unit. Experimental comparisons of the new robust controller with the conventional analog integrator have showed a significant improvement of stability robustness and noise rejection in the system."
2017-06-01T00:00:00ZApplication of robust control to a cryogenic current comparatorBierzychudek, Marcos E.Götz, MartinSánchez-Peña, RicardoTonina, AlejandraIuzzolino, RicardoDrung, Dietmarhttps://ri.itba.edu.ar/handle/123456789/39922022-12-07T17:13:29Z2016-07-01T00:00:00Zdc.title: Application of robust control to a cryogenic current comparator
dc.contributor.author: Bierzychudek, Marcos E.; Götz, Martin; Sánchez-Peña, Ricardo; Tonina, Alejandra; Iuzzolino, Ricardo; Drung, Dietmar
dc.description.abstract: "We describe the design and implementation of an H ∞ controller for PTB's 14-bit cryogenic current comparator (CCC). Measurement results obtained using either the newly implemented digital H ∞ controller or the conventional analog integrator are consistent. In a wide frequency range, the system's noise figure is improved when using the new controller."
2016-07-01T00:00:00ZAutonomous vehicles for outdoor multidomain mappingGarberoglio, LeonardoMoreno, PatricioMas, IgnacioGiribet, Juan I.https://ri.itba.edu.ar/handle/123456789/17902022-12-07T17:13:40Z2018-06-01T00:00:00Zdc.title: Autonomous vehicles for outdoor multidomain mapping
dc.contributor.author: Garberoglio, Leonardo; Moreno, Patricio; Mas, Ignacio; Giribet, Juan I.
dc.description.abstract: "In the last years, progress has been made attempting to replace a unique, complex and expensive vehicle equipped with several sensors such as LIDAR, RGB cameras, thermal sensor, etc. with a group of small vehicles, each of them carrying one sensor. There are several advantages of these segmented architectures, for instance this allows a reduction in the cost of the vehicles (several small vehicles can be less expensive than one big vehicle), the flexibility to choose for a mission only those vehicles with the appropriate sensors, the robustness of the system since it can acquire information even if one vehicle fails, among others. The advantage of segmented architectures is even more noticeable if the vehicles carrying those different sensors, have different characteristics or environments for operations, e.g. aerial, terrestrial or aquatic vehicles. In this work, we present the
experimental results obtained with an ASV (Autonomous Surface Vehicle) and a UAV (Unmanned Aerial Vehicle) that cooperate to obtain a topographic survey of the terrain. The ASV is equipped with a LIDAR, meanwhile the UAV is equipped with a monocular RGB camera. The data acquired is post-processed in order to obtain a detailed map of the coastline of a creek and the surrounding area."
2018-06-01T00:00:00ZCluster space LPV control of robot formationsGhersin, Alejandro S.Giribet, Juan I.Mas, Ignaciohttps://ri.itba.edu.ar/handle/123456789/22172022-12-07T17:14:00Z2018-10-01T00:00:00Zdc.title: Cluster space LPV control of robot formations
dc.contributor.author: Ghersin, Alejandro S.; Giribet, Juan I.; Mas, Ignacio
dc.description.abstract: "Within the Cluster Space robot formation control scheme, a new approach is presented where a cascaded control scheme is proposed. On one hand, a simple secondary (inner) loop is used to control the formation’s velocity in Robot Space, while on the other hand a quasi-LPV (Linear Parameter Varying) approach is employed for the design of the main (outer) control loop where the geometry and kinematics of the problem are captured by the LPV formulation. Certain aspects of the design such as stability are tackled, and the use of parameter-dependent weighting functions is discussed through a design example tested in simulations in order to illustrate the use of the method."
2018-10-01T00:00:00ZCoordinated ASV-UAV control for marine collision-free navigationGarberoglio, LeonardoMas, IgnacioGiribet, Juan I.https://ri.itba.edu.ar/handle/123456789/19102022-12-07T17:14:01Z2019-09-01T00:00:00Zdc.title: Coordinated ASV-UAV control for marine collision-free navigation
dc.contributor.author: Garberoglio, Leonardo; Mas, Ignacio; Giribet, Juan I.
dc.description.abstract: "There is an increasing interest in replacing a unique, complex, and expensive vehicle equipped with several sensors with a group of small vehicles, each of them carrying fewer sensors. There are several advantages in these segmented architectures, such as cost, flexibility, redundancy, and robustness, among others. The advantage of segmented architectures is even more noticeable if the vehicles carrying those sensors have different characteristics or environments of operation, e.g. aerial, terrestrial or marine vehicles. This work proposes a multi-robot system where an autonomous marine vehicle avoids obstacles relying on aerial images provided by an autonomous flying
vehicle. Both robots navigate in a coordinated fashion increasing the detection area and allowing to adjust the obstacle detection horizon. In order to validate the control scheme two simulation
scenarios are presented."
2019-09-01T00:00:00ZDesign of ESD protections for ECG applicationsGardella, PabloBaez, EduardoCesaretti, Juan Manuelhttps://ri.itba.edu.ar/handle/123456789/22162022-12-07T17:14:00Z2020-02-01T00:00:00Zdc.title: Design of ESD protections for ECG applications
dc.contributor.author: Gardella, Pablo; Baez, Eduardo; Cesaretti, Juan Manuel
dc.description.abstract: "This paper presents the design of Electrostatic Discharge (ESD) protections for a remote Electroencephalograph (ECG). Design and layout guidelines are analyzed to improve the ESD robustness of a Grounded-Gate NMOS (GGNMOS) cell based on a single well CMOS-only process. Experimental validation is done by means of a Time Domain Reflectometry (TDR) technique known as Transmission Line Pulse (TLP) testing. The silicon implementation of the proposed design passes ±3700V in the Human-Body Model (HBM)."
2020-02-01T00:00:00ZDevelopment of an optimized LEB filter and its application to INS/GPS test dataAntonini, Claudio Danielhttps://ri.itba.edu.ar/handle/123456789/14082022-12-07T17:13:58Z1993-01-01T00:00:00Zdc.title: Development of an optimized LEB filter and its application to INS/GPS test data
dc.contributor.author: Antonini, Claudio Daniel
dc.description.abstract: "An optimized linear-ellipsoidal-bounded (LEB) filter has been developed and applied to data obtained from a ground test using a combined INS/GPS configuration. In this cascaded configuration, the filter receives eight outputs from the INS (accelerations, velocity, angles, altitude) and six outputs from the GPS (velocities and positions). The GPS measurements have included the effect of selected availability (SA)-of varying or unknown spectrum-which, although likely to be estimated and compensated with some modelling techniques-at the expense of including extra state variables-could also be dealt with using the approach indicated in this article with much less effort. The SA effect is modelled as an unknown-but-bounded (UBB) noise process. Comparisons with an extended Kalman filter (KF) show that KF innovations are not white and the LEB filter innovations are one order of magnitude smaller than those produced by the KF. A simple second order example is developed to show the behavior of the LEB filter when compared to a KF."
1993-01-01T00:00:00Z