R. Louali, M. Djouadi, A. Nemra, S. Bouaziz, A. Elouardi
{"title":"Designing embedded systems for fixed-wing UAVs: Dynamic models study for the choice of an emulation vehicle","authors":"R. Louali, M. Djouadi, A. Nemra, S. Bouaziz, A. Elouardi","doi":"10.1109/SSD.2014.6808827","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808827","url":null,"abstract":"Fixed-wing Unmanned Aerial Vehicles (UAVs) are a special class of UAVs which present many advantages notably long range of action. Whereas, design of this kind of UAVs requires heavy logistics like outdoor tests, runways, and experimented pilots. These constraints reverberate on the design of embedded systems for fixed-wing UAVs. Because static tests are not representative, this paper proposes a practical approach to evaluate an embedded system on an appropriate vehicle emulating the dynamic model of a fixed-wing aircraft. For that, a comparison between the dynamic model of fixed-wing aircraft, tank-type mobile robot, and a bicycle is achieved. We show that, contrary to trend in literature, a mobile robot is not the optimal choice to emulate a fixed-wing UAV. Indeed, supposing a motion without slip (and a constant altitude for the aircraft), translation models of the three vehicles are under the form of Dubin car model. Whereas, translation and rotation velocities of tank-type mobile robot are coupled (while it is not the case for the aircraft where propulsion and turning are actuated separately). This constraint defines an allowed kinematic zone which limits the emulation of a fixed wing airplane. In the other hand, in bicycle model “bank to turn effect” is similar to the one observed in fixed-wing aircraft model. Furthermore, both models are not defined when the translation velocity tends to zero (stalling effect). As a conclusion, we propose to use mobile robot to test the navigation layer, and the bicycle to evaluate the sensor processing layer of an embedded system based fixed-wing UAVs applications.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115117963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xavier Duran-Reus, Francisco Javier Quirós, D. Montesinos-Miracle
{"title":"Design of a high-frequency transformer for an induction heating system","authors":"Xavier Duran-Reus, Francisco Javier Quirós, D. Montesinos-Miracle","doi":"10.1109/SSD.2014.6808858","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808858","url":null,"abstract":"This paper presents the design of a high-frequency transformer for an induction heating system. The aim of this design is to adapt the levels of voltage and current from the inverter to the resonant tank characteristics. In order to optimize the transformer, an algorithm has been designed and discussed.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123782026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Doherty power amplifier based on a tapered line impedance inverter","authors":"Mehran Yahyavi, E. Bertran","doi":"10.1109/SSD.2014.6808763","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808763","url":null,"abstract":"This paper presents a wideband GaN Doherty power amplifier (DPA) in the 2.6 GHz band with a 3 stages Wilkinson splitter where the impedance inverter is based on a tapered line instead of a quarter wave transformer. From the comparison with the same amplifier using a typical quarter-wave transformer as impedance inverter, and keeping both designs the same bandwidth (1.6 to 3.3 GHz, 65% of the fractional bandwidth), the Power Added Efficiency (PAE) is enhanced up to 50% (from 40.46% to 61.17% at 35 dBm input power) in the DPA with a tapered line. Besides, the transducer gain remains practically unaltered.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125395234","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R. Gharbi, H. Trabelsi, A. Gharsallah, H. Baudrand
{"title":"Analysis of inhomogeneous multilayer antenna structure by hybrid method","authors":"R. Gharbi, H. Trabelsi, A. Gharsallah, H. Baudrand","doi":"10.1109/SSD.2014.6808772","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808772","url":null,"abstract":"The paper discussed the implementation of the hybrid algorithm to modelling the multilayer planar circuit by combine the FDFD method and WCIP method. The finite difference frequency domain (FDFD) algorithm can be used to modelling the 3D discontinuity structure, with the open region modelled by iterative method. The well agreement between our method and original FDFD method demonstrated the validity and flexibility of the method. Memory requirement is greatly reduced by using DDM.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116043971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rectangular patch resonator sensors for characterization of biological materials","authors":"N. Aouabdia, N. Belhadj-Tahar, G. Alquié","doi":"10.1109/SSD.2014.6808748","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808748","url":null,"abstract":"The concept of using rectangular patch resonator (RPR) sensors for microwave characterization of biological materials is the non-invasive nature of the technique. It is being used extensively for the complex dielectric properties measurements of materials in the microwave region. Applications in microwave systems, the dielectric substrate and superstrate are made with low loss materials for the best operation. When RPR is used as the sensor, the superstrate is made with the unknown material under test; the objective is then to extract from measurements the dielectric parameters of this material. An accurate modeling of structures, associated with measurement data, is required to obtain, right values of dielectric parameters of unknown material by solving the inverse problem. Our research was established on the implementation of RPR prototypes, in order to be used as a biosensor for non-invasive testing and medical applications to characterize the dielectric properties of various biological materials. Our measurements showed that the complex dielectric properties obtained by this technique are in good agreement with simulations using C.Gabriel & al comparative data.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116156933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Gimeno, E. Guerrero, C. Sánchez-Azqueta, C. Aldea, S. Celma
{"title":"A 1-V CMOS double loop continuous-time adaptive equalizer for short-haul optical networks","authors":"C. Gimeno, E. Guerrero, C. Sánchez-Azqueta, C. Aldea, S. Celma","doi":"10.1109/SSD.2014.6808861","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808861","url":null,"abstract":"This paper presents a low-voltage CMOS continuous-time adaptive equalizer for short-haul gigabit optical communications. It was designed to compensate the attenuation of a 1.25 Gb/s signal with a simple NRZ modulation, transmitted through a 50-m length 1-mm core step-index plastic optical fiber (SI-POF). The structure includes two adaptation loops to compensate the possible variations in level and spectrum of the input signal. The proposed system was designed in a cost-effective 0.18-μm CMOS process. The system is fed with 1 V and has a total power consumption of 29.3 mW.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"162 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122619058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Bahri, A. Atig, R. Abdennour, F. Druaux, D. Lefebvre
{"title":"Multivariable adaptive neural control based on multimodel emulator for nonlinear square MIMO systems","authors":"N. Bahri, A. Atig, R. Abdennour, F. Druaux, D. Lefebvre","doi":"10.1109/SSD.2014.6808769","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808769","url":null,"abstract":"This work describes multivariable adaptive neural control based on multimodel emulator for nonlinear square MIMO systems. Multimodel approach is an interesting alternative and a powerful tool for modelling and emulating complex processes. This paper deals with the identification of nonlinear MIMO systems employing an uncoupled multimodel. Efficiency of this multimodel for systems emulation is illustrated in a multivariable adaptive neural control schemes. Neither initialization parameter and nor online adaptation are required in this case. The effectiveness of the proposed multimodel emulator and the control design are shown through numerical simulations.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"14 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116814598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Applying Reverse Engineering and its techniques on a remote controlled toy helicopter","authors":"M. Younis, Samer Al-Shaer, M. Al-Shabi","doi":"10.1109/SSD.2014.6808881","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808881","url":null,"abstract":"Reverse Engineering (RE) is the process of testing and analyzing a system or a device in order to identify, understand, and document its functionality. RE in education became vital because it allows students to understand product development steps and the working principles toward the product design. RE techniques learned during the class are applied to grasp the technical system features concerning the product. This paper presents a practical example of RE to a remote controlled toy helicopter. The aim of the RE performed on the product chosen is for the purpose of knowledge and experience. The information provided in this paper covers the RE methodology for the helicopter on the system level as well as the RE of mechanical, and electronics.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114757178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Closed loop control for shape memory alloy actuators","authors":"C. Auerswald, B. Senf, J. Mehner, W. Drossel","doi":"10.1109/SSD.2014.6808753","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808753","url":null,"abstract":"This paper describes design considerations of a control circuit for adaptive hybrid structures. These consist of a fiber-reinforced lightweight structure with a thermoplastic matrix and additional shape memory alloy wires, which can be used both as actuators and sensors. In order to use their properties, a control circuit able to heat the actuator wires and to measure their electrical resistance when used as a sensor is needed. In contrast to most references using expensive lab test equipment, a small sized, stand-alone control box is presented. It combines advantages of precision linear current sources for resistance measurement with high efficiency switch-mode converters delivering the wire heating current.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114799676","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Hoppe, J.-M. Boccard, T. Aftab, A. Yousaf, A. Ojha, T. Ostertag, L. Reindl
{"title":"Open parallel-plate dielectric resonator for passive torque sensing","authors":"J. Hoppe, J.-M. Boccard, T. Aftab, A. Yousaf, A. Ojha, T. Ostertag, L. Reindl","doi":"10.1109/SSD.2014.6808759","DOIUrl":"https://doi.org/10.1109/SSD.2014.6808759","url":null,"abstract":"This paper presents a novel torque sensing concept, based on resonant perturbation of an open parallel plate dielectric resonator. When torque is applied to the shaft, the air gap between the parallel plates fixed on a clamp system is changed, which in turn shifts the frequency of the dielectric resonator. Finite Element Method (FEM) simulations using HFSS (ANSYS®) and experimental results regarding the effects of air gap variation on the TE01δ mode in the 2-3 GHz range are presented to prove the sensing concept.","PeriodicalId":168063,"journal":{"name":"2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132532840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}