Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876932
S. Retief, P. Smit, Mm Dreyer
Development of the tracking algorithms used in an infrared seekerhead missile requires the infrared characteristics of the target against which the missile will be directed. Mid-wave infrared recordings of such a target were made at altitude during a flight test. The measurement setup for this test is described, as well as the additional recordings required during data reduction afterwards. An exposition of the general theoretical approach used for the data reduction of infrared image recordings of targets is given and the minimum data required is inferred. The data reduction is then applied to the plume of the target aircraft. The results of the plume data reduction, consisting of mid-wave infrared radiance profiles at different altitudes and the effect of altitude as well as aircraft aspect angle on plume intensity are then presented.
{"title":"Mid-wave infrared characterization of an aircraft plume","authors":"S. Retief, P. Smit, Mm Dreyer","doi":"10.1109/SIECPC.2011.5876932","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876932","url":null,"abstract":"Development of the tracking algorithms used in an infrared seekerhead missile requires the infrared characteristics of the target against which the missile will be directed. Mid-wave infrared recordings of such a target were made at altitude during a flight test. The measurement setup for this test is described, as well as the additional recordings required during data reduction afterwards. An exposition of the general theoretical approach used for the data reduction of infrared image recordings of targets is given and the minimum data required is inferred. The data reduction is then applied to the plume of the target aircraft. The results of the plume data reduction, consisting of mid-wave infrared radiance profiles at different altitudes and the effect of altitude as well as aircraft aspect angle on plume intensity are then presented.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121212441","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876687
M. Erol-Kantarci, H. Mouftah
Electrical power grid is among the critical infrastructures of a nation. In the past several years, the power grids have experienced several major failures which have caused large financial losses in various countries around the globe. In a close future, the imbalance between the growing demand and the diminishing fossil fuels, aging equipments, and lack of communications are anticipated to negatively impact the operation of the power grids. For this reason, governments and utilities have recently started working on renovating the power grid to meet the power quality and power availability demands of the 21st century. The opportunities that have become available with the advances in Information and Communications Technology (ICT) have paved the way to this modernization. The new grid empowered by ICT is called as the smart grid. The natural extension of the smart grid applications to the consumer premises can be through Wireless Sensor Networks (WSNs) which are able to provide pervasive communications and control capabilities at low cost. WSNs have broad range of applications in the smart grid. In this paper we discuss the application of the WSNs in the home energy management services. We evaluate the performance of WSNs in terms of delivery ratio, delay and Packet Delay Variance (PDV) for varying interarrival times and varying network sizes. We also provide numerical results on the reduced cost, load and carbon emissions by our home energy management application.
{"title":"Wireless Sensor Networks for smart grid applications","authors":"M. Erol-Kantarci, H. Mouftah","doi":"10.1109/SIECPC.2011.5876687","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876687","url":null,"abstract":"Electrical power grid is among the critical infrastructures of a nation. In the past several years, the power grids have experienced several major failures which have caused large financial losses in various countries around the globe. In a close future, the imbalance between the growing demand and the diminishing fossil fuels, aging equipments, and lack of communications are anticipated to negatively impact the operation of the power grids. For this reason, governments and utilities have recently started working on renovating the power grid to meet the power quality and power availability demands of the 21st century. The opportunities that have become available with the advances in Information and Communications Technology (ICT) have paved the way to this modernization. The new grid empowered by ICT is called as the smart grid. The natural extension of the smart grid applications to the consumer premises can be through Wireless Sensor Networks (WSNs) which are able to provide pervasive communications and control capabilities at low cost. WSNs have broad range of applications in the smart grid. In this paper we discuss the application of the WSNs in the home energy management services. We evaluate the performance of WSNs in terms of delivery ratio, delay and Packet Delay Variance (PDV) for varying interarrival times and varying network sizes. We also provide numerical results on the reduced cost, load and carbon emissions by our home energy management application.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124018782","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876963
A. Umer, Afsheen Umer
Laser technology was introduced in dentistry with a novel idea of overcoming some of the problems due to traditional treatment methods. After its first use in 1960s, laser technology has found its place in different aspects of dentistry field. The aim of this review is to explain laser applications and compare different types of lasers along with their advantages and disadvantages. A computer based search was done to study 135 articles in seven journals. Laser inherent properties make it the treatment of choice is some cases. Its main achievement is overcoming patient fear associated with conservative dental treatment. On the downside, cost is a big limiting factor in its use. Since the discovery of laser, its research has given different improved laser types, specialized for different targets, like new wavelength bands, maximum peak pulse energy, output power, minimum cost and maximum efficiency. Based on its development and its improved efficiency, laser technology application may revolutionize traditional dental treatment methods.
{"title":"An overview of laser technology in dentistry","authors":"A. Umer, Afsheen Umer","doi":"10.1109/SIECPC.2011.5876963","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876963","url":null,"abstract":"Laser technology was introduced in dentistry with a novel idea of overcoming some of the problems due to traditional treatment methods. After its first use in 1960s, laser technology has found its place in different aspects of dentistry field. The aim of this review is to explain laser applications and compare different types of lasers along with their advantages and disadvantages. A computer based search was done to study 135 articles in seven journals. Laser inherent properties make it the treatment of choice is some cases. Its main achievement is overcoming patient fear associated with conservative dental treatment. On the downside, cost is a big limiting factor in its use. Since the discovery of laser, its research has given different improved laser types, specialized for different targets, like new wavelength bands, maximum peak pulse energy, output power, minimum cost and maximum efficiency. Based on its development and its improved efficiency, laser technology application may revolutionize traditional dental treatment methods.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"1072 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128282555","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876973
Noureddine Hassini, Saim Zouairi
Decision on a strategy for effective predictive Reliability, Availability, Maintainability and Safety (RAMS), by the application of Bayesian networks, while ensuring a better preserving of the operators and installation safety in its entirety. A Bayesian network is an acyclic directed graph where nodes represent discrete random variables value (True, False), and the links influences between the variables or conditional dependencies. Relations between variables are deterministic or probabilistic. In a context of risk management, the causal relationships between different events (cause-effect) that can save any installation dysfunction should be taken into account, integrating the conditional probabilities, based on the opinions of experts' field and on the data mining. Bayesian Networks have become a tool for uncertain reasoning, monitoring tasks such as diagnosis, prediction, and decision making. This makes Bayesian networks a subject of research of artificial intelligence. The processing of data through inference allows us to analyze up-and-down and enrich the basis of feedback through the acquisition of observations (evidence). In this study we present the contribution of Bayesian networks to production and processing of natural gas and an application example will be given for a component (boiler) of the liquefied natural gas complex GL4z industrial facility located in Arzew, western Algeria.
{"title":"Bayesian decision-making for industrial production facilities and processing","authors":"Noureddine Hassini, Saim Zouairi","doi":"10.1109/SIECPC.2011.5876973","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876973","url":null,"abstract":"Decision on a strategy for effective predictive Reliability, Availability, Maintainability and Safety (RAMS), by the application of Bayesian networks, while ensuring a better preserving of the operators and installation safety in its entirety. A Bayesian network is an acyclic directed graph where nodes represent discrete random variables value (True, False), and the links influences between the variables or conditional dependencies. Relations between variables are deterministic or probabilistic. In a context of risk management, the causal relationships between different events (cause-effect) that can save any installation dysfunction should be taken into account, integrating the conditional probabilities, based on the opinions of experts' field and on the data mining. Bayesian Networks have become a tool for uncertain reasoning, monitoring tasks such as diagnosis, prediction, and decision making. This makes Bayesian networks a subject of research of artificial intelligence. The processing of data through inference allows us to analyze up-and-down and enrich the basis of feedback through the acquisition of observations (evidence). In this study we present the contribution of Bayesian networks to production and processing of natural gas and an application example will be given for a component (boiler) of the liquefied natural gas complex GL4z industrial facility located in Arzew, western Algeria.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130772577","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876972
S. Rehman, A. Sheta, M. Alkanhal
This paper presents a new structure to implement compact bandstop filters by employing coupled DGS resonators etched in the ground plane. The proposed bandstop filter consists of symmetrical DGS resonators with a microstrip excitation to obtain a bandstop filter response. By adjusting space S between the two DGS coupled resonators, the bandwith of the bandstop filter can be easily controlled. A bandstop filter is designed, analyzed and implemented on FR4 dielectric substrate to operate at 2GHz. The measured results are in good agreement with simulations.
{"title":"Compact bandstop filter using defected ground structure (DGS)","authors":"S. Rehman, A. Sheta, M. Alkanhal","doi":"10.1109/SIECPC.2011.5876972","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876972","url":null,"abstract":"This paper presents a new structure to implement compact bandstop filters by employing coupled DGS resonators etched in the ground plane. The proposed bandstop filter consists of symmetrical DGS resonators with a microstrip excitation to obtain a bandstop filter response. By adjusting space S between the two DGS coupled resonators, the bandwith of the bandstop filter can be easily controlled. A bandstop filter is designed, analyzed and implemented on FR4 dielectric substrate to operate at 2GHz. The measured results are in good agreement with simulations.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130585382","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876986
Mohammed Mujahid Ulla Faiz, A. Zerguine
In this paper, the performance analysis of the least mean fourth (LMF) algorithm and the sign regressor least mean fourth (SRLMF) algorithm is investigated in an adaptive channel equalization scenario. The simulation results indicate that both the LMF and the SRLMF algorithms exhibit similar bit error rate (BER) performance. Moreover, the results show that the SRLMF algorithm has a slight performance degradation in terms of convergence behavior when compared with the LMF algorithm.
{"title":"Adaptive channel equalization using the sign regressor least mean fourth algorithm","authors":"Mohammed Mujahid Ulla Faiz, A. Zerguine","doi":"10.1109/SIECPC.2011.5876986","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876986","url":null,"abstract":"In this paper, the performance analysis of the least mean fourth (LMF) algorithm and the sign regressor least mean fourth (SRLMF) algorithm is investigated in an adaptive channel equalization scenario. The simulation results indicate that both the LMF and the SRLMF algorithms exhibit similar bit error rate (BER) performance. Moreover, the results show that the SRLMF algorithm has a slight performance degradation in terms of convergence behavior when compared with the LMF algorithm.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129532530","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}
Pub Date : 2011-04-24DOI: 10.1142/S021812661250082X
M. El-Moursy, H. Shawkey
Simple uniform reduced order model is used to model an RLC interconnect line. Waveform characterization is used to evaluate the accuracy of the adopted models. As compared to RC lines, less than five times the number of sections is sufficient to model RLC lines. Look-up tables are provided to simplify the process of choosing the best interconnect section model to characterize an RLC interconnect line. The tables are shown to be accurate for wide range of relative impedance of the driver, the line, and the load. The tables provide a simple and quick mean to characterize an RLC interconnect which is necessary for performance evaluation in digital circuits. The presented model reduces the simulation time while keeping the simulation accuracy. The simulation time can be reduced by up to 72% with less than 10% reduction in accuracy using the provided tables.
{"title":"Interconnect modeling with the existence of line inductance","authors":"M. El-Moursy, H. Shawkey","doi":"10.1142/S021812661250082X","DOIUrl":"https://doi.org/10.1142/S021812661250082X","url":null,"abstract":"Simple uniform reduced order model is used to model an RLC interconnect line. Waveform characterization is used to evaluate the accuracy of the adopted models. As compared to RC lines, less than five times the number of sections is sufficient to model RLC lines. Look-up tables are provided to simplify the process of choosing the best interconnect section model to characterize an RLC interconnect line. The tables are shown to be accurate for wide range of relative impedance of the driver, the line, and the load. The tables provide a simple and quick mean to characterize an RLC interconnect which is necessary for performance evaluation in digital circuits. The presented model reduces the simulation time while keeping the simulation accuracy. The simulation time can be reduced by up to 72% with less than 10% reduction in accuracy using the provided tables.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130854936","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876966
S. Alamri, A. AlAmoudi
This paper proposes the design, fabrication, characterization and measurement of an S-C band broadband detector. A brief theoretical outline of detectors and detector devices is presented. The commercially available GaAs packaged detector diode SOD-323 was adapted to build an unamplified detector. A broadband microchip impedance matching network procedure was developed, characterised and used to provide the broadband design for the detector. The measurements show a close agreement between the simulated and measured results. The bandwidth obtained was better than 5 GHz or 100% for 5 GHz frequency centre from 2 GHz to 8 GHz; minimum voltage sensitivity 200 mV/mW over 2 GHz to 8 GHz was achieved and the peak value was more than 1130 mV/mW at 3 GHz.
{"title":"S-C bands broadband envelop detector design","authors":"S. Alamri, A. AlAmoudi","doi":"10.1109/SIECPC.2011.5876966","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876966","url":null,"abstract":"This paper proposes the design, fabrication, characterization and measurement of an S-C band broadband detector. A brief theoretical outline of detectors and detector devices is presented. The commercially available GaAs packaged detector diode SOD-323 was adapted to build an unamplified detector. A broadband microchip impedance matching network procedure was developed, characterised and used to provide the broadband design for the detector. The measurements show a close agreement between the simulated and measured results. The bandwidth obtained was better than 5 GHz or 100% for 5 GHz frequency centre from 2 GHz to 8 GHz; minimum voltage sensitivity 200 mV/mW over 2 GHz to 8 GHz was achieved and the peak value was more than 1130 mV/mW at 3 GHz.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128103363","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876979
A. Aissat, S. Nacer, H. Aliane, J. Vilcot
In this paper we have studied strained structures wells based on GaInAsSb over GaSb substrate. The GaSb substrates allow the mesh accordability with the GaInAsSb solid solution in the range 1.7–3.5 μm. The conduction band and valence discontinuities are evaluated. A Basic source-detector direct transition has been demonstrated at 2–3 μ m. The III-V based GaSb components have many applications in optical fiber links, radar transmissions through atmospheric windows or air detection and spectroscopic analysis of the gases. From this structure it is possible to make semiconductor lasers operating continuously at room temperature, low non-cooled detectors.
{"title":"Long wavelength determination of a strained quantum well structure based on GaxIn1−x−yAsySb1−y /GaSb for gas detection","authors":"A. Aissat, S. Nacer, H. Aliane, J. Vilcot","doi":"10.1109/SIECPC.2011.5876979","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876979","url":null,"abstract":"In this paper we have studied strained structures wells based on GaInAsSb over GaSb substrate. The GaSb substrates allow the mesh accordability with the GaInAsSb solid solution in the range 1.7–3.5 μm. The conduction band and valence discontinuities are evaluated. A Basic source-detector direct transition has been demonstrated at 2–3 μ m. The III-V based GaSb components have many applications in optical fiber links, radar transmissions through atmospheric windows or air detection and spectroscopic analysis of the gases. From this structure it is possible to make semiconductor lasers operating continuously at room temperature, low non-cooled detectors.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126076763","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}
Pub Date : 2011-04-24DOI: 10.1109/SIECPC.2011.5876971
M. Tayel, Amir Al-Mslmany
Based on bipolar junction transistor (BJT) modeling the theoretical analysis of biasing effect on improvement of linearity and efficiency of RF linear power amplifier (LPA) are introduced, according to these analysis and by using matlab curve fitting toolbox an analytical model for improvement of linearity and efficiency of RF linear power amplifiers (PAs) is introduced. This model simplifies the traditionally complicated methods of analysis of RF PA. According to a change of the DC bias as a function of the AC input signal of RF linear PA the linearity and efficiency can be improved.
{"title":"Biasing effect on improvement of linearity and efficiency of RF linear power amplifier","authors":"M. Tayel, Amir Al-Mslmany","doi":"10.1109/SIECPC.2011.5876971","DOIUrl":"https://doi.org/10.1109/SIECPC.2011.5876971","url":null,"abstract":"Based on bipolar junction transistor (BJT) modeling the theoretical analysis of biasing effect on improvement of linearity and efficiency of RF linear power amplifier (LPA) are introduced, according to these analysis and by using matlab curve fitting toolbox an analytical model for improvement of linearity and efficiency of RF linear power amplifiers (PAs) is introduced. This model simplifies the traditionally complicated methods of analysis of RF PA. According to a change of the DC bias as a function of the AC input signal of RF linear PA the linearity and efficiency can be improved.","PeriodicalId":125634,"journal":{"name":"2011 Saudi International Electronics, Communications and Photonics Conference (SIECPC)","volume":"2 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126092823","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}
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