INSPECT - Integrated Nano Sensor Probes and Electronics for Eddy Currents Testing

Funding Institution: FCT

Project start: May 2013

Project end: May 2015

GIM Team Members: Pedro Ramos, Luis Rosado

Partners: INESC-ID (project leader), INESC-MN, FCT-UNL

Description: This research proposal aims to develop a state of the art Non-Destructive Testing (NDT) system to overcome current testing limitations on some specific industrial applications. The system will include a new eddy currents probe, combining coils, a Magnetoresistive (MR) sensors array and Complementary Metal-Oxide Semiconductor (CMOS) microelectronic circuits, which will work together with an eddy current generation element. Since the probe aims to be efficient for both superficial (requiring high frequency operation) and buried defects (requiring low frequency operation), coils have the disadvantage of having a frequency dependent sensitivity, which is lower at low frequencies. Moreover, coils also have a low spatial resolution, due to its millimeters range size. While coils measure magnetic flux, MR sensors measure magnetic field thus having a frequency independent sensitivity. Therefore, by adding MR sensors to the probe, its scope of detection increases, and also its spatial resolution, since MR sensors can have dimensions on the micrometer range. Other advantage of MR sensors is the fact that they are usually produced using thin film technology allowing high resolution and repeatability. In order to increase the number of MR sensors in the probe, CMOS microelectronic circuits will be included to perform multiplexing and therefore reducing the number of outputs. The CMOS circuit will also bias the MR sensors, and apply low-noise amplification and filtering. To cope with the new probe high data throughput, the system will also include an high performance Digital Signal Processing (DSP) unit. The DSP unit will be based on a Field-Programmable Gate Array (FPGA) and high speed and resolution data converters. A scalable processing architecture will explore high parallelism within the FPGA processing core to perform digital demultiplexing, filtering and demodulation of the multiple sensors signals. Also, the DSP unit will configure the gain, bandwidth and the sensors addressing mechanism by communicating with the microelectronic circuits. Results will be displayed in a Graphical User Interface (GUI) running on a computer connected with the developed system. Characterization and testing on real and relevant NDT applications will evaluate the new system performance.

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TIMII - Magnetic Induction Tomography - High Resolution Imaging Instrumentation

Funding Institution: FCT

Project start: January 2010

Project end: December 2012

GIM Team Members: Raúl Martins; António Cruz Serra; Pedro Silva Girão; Nuno Gonçalo Bandeira Brás

Description: Develop the Magnetic Induction Tomography technology in all of its aspects which includes the Electromagnetic Direct Problem Formulation, the Image Processing Inverse Problem Resolution, the Instrumentation and the Biomedical applications.

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AQA/Sado - Water Quality Assessment in Sado Estuary

Funding Institution: IPS

Project start: January 2010

Project end: December 2012

GIM Team Members: José Dias Pereira; Octavian Postolache

Description: Research activities related with water quality assessment and its impact in ecosystems, particularly dolphins life.

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Funding Institution: FP7 (FP7/2007-2013, grant agreement number 243625)

Project start: February 2010

Project end: January 2013


  • UPC- Universitat Politècnica de Catalunya. Instrumentation, Sensor and Interfaces Group and Characterization, composting and application of organic wastes Group (Spain),
  • IRIS - Innovació i Recerca Industrial i Sostenible (Spain),
  • European Compost Network ECN/ORBIT e.V. (Germany)
  • Kompostgüteverband Österreich (Austria)
  • Czech Biomass Association (Czech Republic)
  • Associació de Plantes de Compostatge de Catalunya (Spain)
  • Hungarian Compost Association (Hungary)
  • Cré – Composting & Anaerobic Digestion Association of Ireland (Ireland)
  • BVOR - Branche Vereniging Organische Reststoffen (Holand)
  • Solum A/S (Denmark)
  • KomTek Miljø A/S (Denmark)
  • ARC - Agència de Residus de Catalunya (Spain)
  • Profikomp Ltd. (Hungary)
  • Müller Abfallprojekte GmbH (Austria)
  • Gökser Machine Ltd. (Turkey)

GIM Team Members: Pedro M. Ramos; Pedro Silva Girão; António Cruz Serra

Description: The COMPO-BALL project objective COMPO-BALL is a 3-year research project funded by the European Commission that is developing a new system for monitoring the temperature and moisture during composting processes. Bringing together 16 partners from 9 European countries, the project aims to bring affordable wireless composting-sensors – called “SensoBalls” to the European composting industry.

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KeMANDE - Kernel Method Applied to Non Destructive Evaluation

Funding Institution: IT

Project start: June 2011

Project end: June 2013

GIM Team Members: Helena Ramos; Artur Lopes Ribeiro; Octavian Postolache

Description: Throughout the world, engineers and technicians are working together finding cracks and other anomalies to prevent expensive failures. The increasingly important role of nondestructive testing in public security and safely technology development promote new and innovative methods to be developed and already known methods do be enhanced. Eddy Current Testing (ECT) is one of the most established nondestructive structure evaluation technique that enables defect detection and material condition monitoring with high sensitivity and reliability. With eddy currents nondestructive evaluation, the dimensions of defects are retrieved by inversion of the measured signals. Since the physical model of the problem is often complicated and non-linear, the inversion model is ill-posed and it’s solution always a challenge. Within this project an original strategy based on the current lines distribution is proposed. The idea is to assess the current density perturbation caused by the defects through a bi-dimensional map of the magnetic field components on the surface of the material to be tested, obtained experimentally. This current density can be represented as a composition of magnetic dipoles. The field of the single magnetic field dipole will be the kernel of the transformation to be used in the inversion process. Measurements are taken using electromagnetic sensors based on giant magnetoresistive (GMR) effect. It is our goal to develop a competitive automated system to be subsequently exploited and used in the industry.

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OMeGA - Optical Measurement of Guided Acoustic Waves in Solid Media

Funding Institution: IT

Project start: May 2011

Project end: June 2013

GIM Team Members: Artur Lopes Ribeiro; Helena Ramos; Octavian Postolache

Description: The coupling of ultrasound waves into solid media on a material surface point followed by the wave detection on another point can be used to infer about the wave propagation conditions. The wave suffers reflections on the material boundaries, but is attenuated or diffracted on existing material discontinuities. It is possible to obtain valuable information about material defects by an accurate analysis of the wave propagation conditions. In this project we intend to apply the ultrasound method to establish an experimental method of defects detection inside solid structures whose structural health monitoring is of great importance. This is the case of the aircraft structures, the liquid or gas pipelines in nuclear power plants or other containers subject to high pressures. To our knowledge, the most important inspection task at this time is the assessment of possible internal defects inside the stainless steel containers of the International Thermonuclear Experimental Reactor (ITER).

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ADCPN - Influence of Phase Noise and Jitter in the testing of telecommunication ADCs

Funding Institution: IT

Project start: July 2005

Project end: June 2007

GIM Team Members: Francisco Alegria

Description: Today’s telecommunications are essentially digital because of its advantages in term of speed, versatility and robustness. To implement a digital communication channel is fundamental the use of analog to digital and digital to analog converters. The main goal is to have higher bandwidths necessary, for instance, to have faster computer networks or new services in mobile phones, like video or broadband internet. To achieve this, analog to digital converters (ADCs) are constantly being improved and their capacity pushed to the limit. One factor that affects ADC performance is the presence of phase noise in the analog signals being converted, due, for instance, to the use of higher frequency local oscillators, and the presence of jitter in the sampling of the analog signal required to convert it to digital. Both of theses phenomena, which generally can be studied together, affect the behavior of the ADC. In this project we propose to study the influence of phase noise and jitter in the results of ADC testing. It’s influence on those results depends on the test method chosen. Two of the methods we propose to study are the Histogram Method and the DFT Method. The first one is used to determine the ADC transfer function, integral non linearity (INL), differential nonlinearity (DNL), gain error and offset error. The second one, the DFT Method, is used to determine ADC signal to noise and distortion ratio (SINAD), total harmonic distortion (THD), noise and effective number of bits (ENOB).

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AQA - Global Monitoring Based on Smart Sensors for Environment Quality

Funding Institution: FCT/PNAT (POCTI/PNAT / 1999 / EEI / 15 052 / C)

Project start: March 2001

Project end: February 2005

GIM Team Members: Helena Ramos; Pedro Silva Girão; José Dias Pereira; António Cruz Serra; Octavian Postolache

Description: The main objective and original contribution of this project is the study, design and implementation of intelligent automated measurement systems for the continuous monitoring of parameters considered important for the environment quality. These systems include smart cells (i.e. smart sensors or smart actuators) for some physical quantities with digital processing structures with prediction capabilities. As new intelligent techniques that will be developed within the project it should be underlined: ·The sensor fusion and integration that combine the information in a way that removes inconsistencies and presents clearly the best interpretation of readings input from many individual sources. ·Neural and neuro-fuzzy information processing that includes linearisation, prediction and the correction of sensor characteristics. Another direction of work will be the establishment of a client-server architecture linked through a computer network for distributed measurement systems. The client performs the continuous monitoring of the electrical signals related to the quantities to be measured and their transmission to the server database. For the water quantities the transmission is via the Global Standard for Mobile telecommunication (GSM) and a Global Position Sensor (GPS) is used for sensors position detection.

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CRACK - Flaw Imaging in Metals by Contactless Conductivity

Funding Institution: FCT/PTDC (PTDC/EEA-ELC/67719/2006)

Project start: October 2007

Project end: April 2011

GIM Team Members: Helena Ramos; Artur Lopes Ribeiro; Octavian Postolache; Francisco Alegria

Description: The measuring principle is based on the phenomenon whereby the impedance of a coil generating a time-varying magnetic field changes in the presence of a conductive material as eddy currents are induced in the material. Therefore the idea of a contactless electrical conductivity imaging system (CECIS) is based on a sensor composed of two coils. One of the coils, designated the transmitter coil, is driven by an alternating current and generates an oscillating magnetic field that induces currents inside the object to be tested. These induced currents are related to the conductivity distribution of the body. Another coil, the receiver coil, measures the total magnetic field. One component of the magnetic field is related to the primary imposed currents and the other component is related to the induced eddy currents. As the signal originated from deeper voxel significantly attenuates before it reaches the receiving coil the information gets easily corrupted by measurement noise. By incorporating into the design a real time digital signal processor able to perform advanced signal processing techniques it is possible to increase significantly the range of the sensor. Two solutions are envisaged to accumulate data either by relocating the probe several times using a XY scanning mechanism or by using an array of sensors, i. e., several probes in the vicinity of the object to be tested.

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DICSAP/WCA - Design, Implementation and Characterization of Stand-Alone Prototypes for Water Conductivity Assessment

Funding Institution: IT (IT/LA/298/2005)

Project start: May 2005

Project end: May 2008

GIM Team Members: José Dias Pereira; Helena Ramos; Artur Lopes Ribeiro; Pedro Ramos

Description: The target of the present project is to develop, implement and characterize two stand-alone prototypes for conductivity monitoring of water mainly in estuary rivers. As multipoint network is of paramount importance in water quality assessment and the sensor plays a very important role in the measurement system, the goal of this work is focused in low-cost effective solutions instead of commercially available conductivity sensors. One of the prototypes is based on a four-electrode conductivity sensor and the other on an inductive conductivity sensor.

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EHR-Wheel - Electronic Health Records for Wheelchairs Users

Funding Institution: FCT, RIPD (RIPD/APD/109639/2009)

Project start: May 2010

Project end: May 2012

GIM Team Members: Octavian Postolache; Pedro Silva Girão; José Dias Pereira

Description: Developing unobtrusive monitoring of electrocardiogram and respiratory activities using sensors installed in household furniture in everyday life completed with RFID elements to provide a safe and healthy place for the elderly Developing appropriate health data and tracking data analysis tools important observations (e.g. general health and activity levels, activities of daily living (ADL). Advanced data processing for accurate cardiac and respiratory signal monitoring.

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ESPECTRO - Spectrum Monitorization and Control. Integration of Infrastructures

Funding Institution: ICP/ANACOM

Project start: February 2002

Project end: December 2010

GIM Team Members: Octavian Postolache; Pedro Silva Girão

Description: The purpose of this project is to automate the measuring procedures used in the different Monitoring Centers of ANACOM (Portuguese Telecommunications Regulator) to monitor and control the radiofrequency spectrum in Portuguese territory. The automation must allow remote operation, that is to say, to perform tests for instance in Azores from another Center, namely the main one sited in Barcarena.

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EUPAS - EUropean Project for ADC-based devices Standardization

Funding Institution: IT

Project start: January 1998

Project end: January 2008

GIM Team Members: António Cruz Serra; Pedro Silva Girão; Helena Ramos; Francisco Alegria; Raúl Martins; Maria Conceição Monteiro; Manuel Fonseca da Silva

Description: European Network including 10 Universities and Research centres and 5 Industrial partners. Description: The aim of this project is to contribute to the improvement of the European rules concerning the test methods for analog-to-digital converters and sample-and-hold circuits, with emphasis on their dynamic behavior. During 2003, new test methods to circumvent the limits of the measurement instrumentation, to measure particular parameters required for specific applications and to diagnose problems in new converter designs will be investigated and proposed.

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GOA - Listening Dolphins and Measuring the Water Quality where they Live

Funding Institution: Ciência Viva (CV-1572-2006)

Project start: April 2006

Project end: June 2008

GIM Team Members: Octavian Postolache; José Dias Pereira; Pedro Silva Girão

Description: The project main objective is to promote new connections between National Research Institutes, such as Instituto de Telecomunicações and the research units of the Portuguese Polytechnic Schools and groups of professor and students from Secondary Schools in the area of interdisciplinary research of environment monitoring. Considering that a bottlenose dolphin community is localized in the Sado Estuary the project propose an interdisciplinary research associated with dolphin behavior monitoring through underwater sounds acquisition and processing and at the same time the monitoring of the water quality in Sado Estuary in order to obtain correlations between the dolphin life behavior an aquatic environment conditions. An important component of the project is to realize multimedia presentation related to the systems for dolphin and water quality monitoring and the experimental data obtained during the field monitoring session or obtained in the laboratory conditions.

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Funding Institution: PT

Project start: March 2010

Project end: March 2011

GIM Team Members: Pedro Silva Girão; Octavian Postolache

Description: The main objective is to implement a prototype of a system that allows non-invasive monitoring of cardiac and respiratory parameters of people living in non-hospital environments.

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Funding Institution: IPQ

Project start: August 2005

Project end: January 2005

GIM Team Members: Pedro Silva Girão; Pedro Ramos

Description: Disseminação horária em VLF em Portugal continental e ilhas

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IMPANA - Development and implementation of an impedance analyzer based on analog to digital conversion and powerful signal processing algorithms

Funding Institution: FCT/PTDC (PTDC/EEA-ELC/72875/2006)

Project start: September 2007

Project end: December 2010

GIM Team Members: Pedro Ramos; Fernando Tim Tim Janeiro; Tomás Radil

Description: The research team’s expertise in test and characterization of analog to digital converters, signal processing algorithms, power quality measurements, development of modern digital instrumentation and impedance measurements will be used in the development and implementation of an inexpensive accurate impedance analyzer to operate in the frequency range from 10 Hz up to 1 MHz. Following the team’s previous work, a instrument prototype including all the system electronics and the software will be built. The device is based on the traditional I-V method coupled with analog to digital conversion and signal processing algorithms to be executed in the prototype digital signal processor. The algorithms to be implemented will determine the parameters of the sine signals that best fit the acquired samples of two channels and thus estimate the unknown impedance parameters. The accuracy of the final instrument will depend on the project progress but basic accuracies of 0.1% for the impedance magnitude and 0.01º for the phase or better are expected.

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InADC - InADC-In depth analysis of analog to digital converter methods

Funding Institution: FCT/PTDC ()

Project start: September 2007

Project end: September 2010

GIM Team Members: Francisco Alegria; António Cruz Serra; Pedro Silva Girão

Description: The main goal of this research project is the advancement of the knowledge in the area of analogue to digital converter testing. We propose the pursuit of the following objectives: a) Study of the precision of Independently based Gain and Offset Error; b) Development of a Weighted Least Squares Estimator for gain and offset error estimation; c) Study of the influence of additive noise in the bias of ADC gain and offset error estimation; d) Study of the use of sinusoidal stimulus signals instead of triangular stimulus signal as suggested in the IEEE 1057-94 standard procedure for ADC random noise estimation; e) Derivation of an exact estimator for ADC random noise estimation; f) Study of the influence of sinusoidal amplitude and offset on the bias and precision of the estimation of the fitted sine wave parameters; g) Derivation of an expression for the minimum number of samples required to achieve a given upper bound on the estimation bias and precision; h) Study of the precision of novel sine-fitting algorithms used in impedance measurement.

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Funding Institution: QREN

Project start: January 2010

Project end: December 2011

GIM Team Members: Octavian Postolache

Description: The present project intends to develop a new platform for labs monitoring and control that integrates in a single system the energy management, operation safety, security, environment quality , workbench and lab equipments. The interactivity with the system will be done through touch screen based interfaces integrated in the workbench/equipment/building with characteristics adequate for laboratorial use. The system can also be accessed remotely through internet.

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INTIMAS - Interoperability in Enviromental and Marine Sensor Networks

Funding Institution: Ministério da Ciência e Inovação Espanhol

Project start: January 2009

Project end: December 2011

GIM Team Members: Helena Ramos


IT Project Website

NECTDiMe - New error correction techniques for digital measurement instruments

Funding Institution: FCT/POCTI (POCTI/ESE/46995/2002)

Project start: February 2004

Project end: February 2007

GIM Team Members: António Cruz Serra; Pedro Ramos; Francisco Alegria; Manuel Fonseca da Silva; Raúl Martins

Description: Nowadays nearly all measurements of every quantity are carried out through digital measuring systems. These are usually composed by one or more sensors, signal conditioning circuits, analog to digital converters (ADCs) and computers or microprocessors, where digital signal processing is performed to extract the relevant information from the ADC output codes. The accuracy of these measurement instruments is strongly dependent on the quality of calibration techniques and signal processing algorithms. When the systematic errors are time invariant, they can be characterized during a calibration process and mathematically removed during the measurement procedure. One of the key components in modern measuring systems is the Analog-to-Digital Converter. Their performance has a determinant impact on the performance of digital instruments, and on the quality of the measurement systems. Traditionally, digital instruments are designed by considering ADCs as ideal components affected only by sampling and quantization errors. Unfortunately, actual errors in ADCs transfer function, strongly affect the overall accuracy and bandwidth of the systems where they are included. To implement powerful calibration techniques the behavior of ADCs has to be well described. Dynamic characterization of ADCs is usually performed by the code density histogram, DFT or sine-fitting tests, in which the participants in this project have ample knowledge and internationally published work. In this project, we propose to apply our experience on ADC testing and use signal processing techniques to built high accuracy digital measurement systems. We will demonstrate these techniques by implementing an impedance meter and by performing error correction in the results of an electrocardiograph. Simultaneously high frequency ADC testing techniques will be improved. The impedance measurement system will be based on the use of ADCs included in general-purpose digitizers and sine-fitting techniques. The system will perform from DC to tens of MHz. Calibration techniques will remove the influence of systematic errors. They will be based on a complete characterization of the digitizing channels and implementation of the corresponding error correction. The unavoidable influence of noise in any experimental setup will be reduced by the use of sine-fitting techniques. This will allow the construction of high accuracy, but not expensive instruments. Preliminary results already obtained by using a medium cost 12 bit PC data acquisition boards show that the technique is very powerful and can lead to measurement accuracy comparable with that obtained by sophisticated very high cost dedicated impedance measurement equipment. The first results for impedances with magnitudes and phases near 300ohm and 45º shown standard deviations close to 0.01ohm and 0.01º. Similar techniques will be used to remove the power-line interference in electrocardiogram results. Sine-fitting or frequency domain techniques (IpDFT) will be used.

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NMMADC - New measurements methods in Analog to Digital Converters testing

Funding Institution: FCT/POCTI (POCTI/ESE/32698/99)

Project start: October 2000

Project end: September 2003

GIM Team Members: António Cruz Serra; Pedro Silva Girão; Helena Ramos; Manuel Fonseca da Silva; Maria Conceição Monteiro; Raúl Martins; Francisco Alegria; Pedro Ramos

Description: Phase plane domain model of the ADC behavior will be explored and presented. This model will include frequency dependent phenomena as dynamic hysteresis. A procedure aiming at characterizing the ADC behavior on the phase plane domain will also be developed. The characterization method will resort to dual tone input signal and Fourier Transform based analyses of the output.

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NORIT - Incidence of Norway lobster emergence activity rythms on its populations assessment

Funding Institution: Ministério da Educação e Ciencia Espanhol (CTM2005-02034/MAR)

Project start: December 2005

Project end: December 2008

GIM Team Members: Helena Ramos; António Cruz Serra

Description: The final objective of this project is to measure, and to quantify, the emergence rhythms of the Norway lobster (Nephrops norvegicus L.) for the different parts of its population, in response to different environemental variables, and thus obtaining a database for a more precise evaluation of this resource.

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Fast and accurate power quality measurements using analog to digital converters and digital signal processing techniques

Funding Institution: FCT/POSC (POSC/EEA-ESE/57708/2004)

Project start: March 2007

Project end: December 2008

GIM Team Members: António Cruz Serra; Fernando Tim Tim Janeiro; Pedro Ramos; Tomás Radil

Description: The objective of this project is: (i) to study and develop new digital signal processing algorithms for power quality analyzers; (ii) to develop the interface to the ADCs with signal conditioning electronic circuitry. All system components will be metrologically characterized with special emphasis on the ADCs. Development and testing of the algorithms will be implemented on PCs. Afterward a analysis will be performed as to their adaptability to fit the limitations of a DSP based portable instrument.

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PQM/ADC/DSP - Power quality measurements using analog to digital converters and digital signal processing techniques

Funding Institution: IT (IT/LA/318/2005)

Project start: September 2005

Project end: December 2007

GIM Team Members: Pedro Ramos; Fernando Tim Tim Janeiro; Tomás Radil

Description: The objective of this project is to study, develop and implement new digital signal processing techniques to be used in power quality measurement instruments based on analog to digital converters and digital signal processors. Digital signal processing algorithms are fundamental as they can produce very accurate results and are a flexible component of instruments which can be upgraded and improved without the need for expensive and time consuming hardware re-designing. There is no single algorithm that can detect the variety of power quality anomalies. Instead, a set of algorithms is need, where each one is responsible for detection of a set of disturbances.

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SMARDO - Smart System for Monitoring of Wild Dolphin – Antropogenic Factors Interactions

Funding Institution: IT (IT/LA/323/2005)

Project start: October 2005

Project end: June 2008

GIM Team Members: Pedro Silva Girão; Octavian Postolache; José Dias Pereira

Description: 1. Study, development, implementation and testing of different systems to track dolphins. 2. Development and implementation of a distributed monitoring system for the acquisition and recording of wide-band acoustic signals (up to 200 kHz) associated with both wild dolphins’ community and anthropogenic underwater noise. 3. Evaluation of water parameters that affect dolphins’ behaviour and deployment of units to measure and remotely transmit the values of those parameters using solutions already developed by some of team’s members in the context of FCT project Global Monitoring Based on Smart Sensors for Environment Quality. 4. Design and implementation of advanced techniques to analyse the data acquired by the hydrophones using namely time-frequency and neural networks based techniques in order to filter, compress, fuse, and classify the patterns of the acoustic signals and water quality parameters’ values. 5. Creation of a SMARDO Web site where projects’ results are published and through which team’s obtained experimental data can be accessed by the national and international community.

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TIM - Magnetic Induction Tomography - Development of the instrumentation and measuring methods for biomedical applications.

Funding Institution: FCT/POSC (POSC/EEA-ESE/60397/2004)

Project start: June 2005

Project end: June 2008

GIM Team Members: António Cruz Serra; Pedro Silva Girão; Artur Lopes Ribeiro; Helena Ramos; Raúl Martins; Pedro Ramos; Francisco Alegria; Nuno Gonçalo Bandeira Brás

Description: The aim of the project is to assess the use of Magnetic Induction Tomography (MIT) as a means to measure relevant biomedical information, and specifically to evaluate its applicability in the measurement of impedance plethysmography (change of tissue volumes in the body), cardiac activity through impedance cardiology (ICG) and spatial localization of malignant tumors. To this end our intent is to develop new approaches to the solution of the direct and inverse problems, design a multifrequency and multisensor MIT device, evaluate the optimal excitation pattern, develop new image reconstruction algorithms, evaluate the safety operation constraints regarding the use of a MIT device on living tissue and experimentally assess the viability of the MIT technology for impedance plethysmography, ICG and tumor location.

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UEMC-IM - Update and Extension of the Measuring Capabilities of the Instrumentation and Measurement Group of the Institute of Telecommunications - Lisbon

Funding Institution: FCT/REEQ (REEQ/EEI/1118/2005)

Project start: June 2002

Project end: December 206

GIM Team Members: Pedro Silva Girão; António Cruz Serra; Helena Ramos; José Dias Pereira; Octavian Postolache; Pedro Ramos

Description: The purpose of the project is to update and increase the measuring capabilities of the Instrumentation and Measurement Group - Institute of Telecommunications - Lisbon. The Group develops research and development mainly in six major areas of Metrology: analog-to-digital conversion, measurement of electric quantities, measurement of non-electric quantities, data acquisition and processing, telemetry and automated measuring systems. The Group is also increasingly engaged is assisting Portuguese industry and services.The equipment proposed for acquisition includes two type of items: general purpose instruments and dedicated instruments. While the general purpose instruments proposed aim at the update and increase of flexibility and capabilities of existing measuring means, the dedicated equipment pretends to overcome major measuring limitations in two domains: analog-to-digital conversion and measurement of non-electric quantities for environmental quality monitoring.

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Wi-mm - Millimetre-wave wireless indoor link with automatic tracking antenna

Funding Institution: IT (P428)

Project start: October 2008

Project end: October 2010

GIM Team Members: António Cruz Serra; Pedro Ramos; Raúl Martins; Tomás Radil

Description: The objective is to demonstrate a low-cost high bit rate data link that integrates a mechanically steerable lens antenna with a simplified RF front-end and with automatic tracking control system. A fully operational video transmission will be demonstrated with this wireless mobile mm-wave system.

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