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An enhanced fully differential Recyclic Folded Cascode OTA 增强型全差分循环折叠Cascode OTA
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197977
P. Patra, S. Kumaravel, B. Venkatramani
{"title":"An enhanced fully differential Recyclic Folded Cascode OTA","authors":"P. Patra, S. Kumaravel, B. Venkatramani","doi":"10.1109/SSD.2012.6197977","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197977","url":null,"abstract":"In the literature, Recyclic Folded Cascode (RFC) and Improved RFC (IRFC) Operational Transconductance Amplifiers (OTAs) are proposed for enhancing the DC gain and the Unity Gain Bandwidth (UGB) of the Folded Cascode (FC) OTA In this paper, an enhanced RFC (ERFC) OTA which uses positive feedback at the cascode node is proposed for increasing the DC gain without changing the unity gain bandwidth (UGB). This also has an additional advantage of decreasing the Common-Mode (CM) gain of the OTA. For the purpose of comparison, RFC, JRFC and ERFC OTAs are implemented using UMC90nm technology and studied through simulation. From the simulation, it is found that the DC gain of ERFC OTA is higher by 6dB, 1dB compared to that of RFC and IRFC OTAs respectively. The CM gain of ERFC OTA is lower by 31dB, 34dB compared to that of RFC and IRFC OTAs respectively for the same power and area. The Slew rate of ERFC OTA is higher by a factor of 1.14, 1.08 compared to RFC and IRFC OTAs.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132055635","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}
引用次数: 7
Multiple descriptions coding in MELP coder for voice over IP 多描述编码在MELP编码器中用于IP语音
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198056
M. Saidi, B. Boudraa, M. Bouzid, M. Boudraa
{"title":"Multiple descriptions coding in MELP coder for voice over IP","authors":"M. Saidi, B. Boudraa, M. Bouzid, M. Boudraa","doi":"10.1109/SSD.2012.6198056","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198056","url":null,"abstract":"In VoIP systems, CELP coders, such as G.729, are commonly used as they offer good speech quality in the absence of packet loss. However, harmonic coders such as MELP may be a good alternative for VoIP due to their higher resilience to packet loss. In this paper we examine the problem of the packet loss in the VoIP application using MELP coders. The proposed packetization scheme based on Multiple Description Coding (MDC) applied to the MELP coder is presented. A packet will contain information on two MELP coders operating at 2.4 and 1.2 Kbps respectively. The packetization is achieved using 135 bits in 22.5 ms corresponding to a total rate of 6 kbps. The results show that under typical VOIP operating conditions, the method performs well and outperforms CELP coders operating without MDC at 8 kbps.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130233463","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}
引用次数: 2
24-Hour ambulatory monitoring of complex physiological parameters with a wireless health system: Feasibility, user compliance and application 利用无线健康系统对复杂生理参数进行24小时动态监测:可行性、用户依从性和应用
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198122
A. Rieger, Sebastian Neubert, Sabine Behrendt, M. Weippert, S. Kreuzfeld, R. Stoll
{"title":"24-Hour ambulatory monitoring of complex physiological parameters with a wireless health system: Feasibility, user compliance and application","authors":"A. Rieger, Sebastian Neubert, Sabine Behrendt, M. Weippert, S. Kreuzfeld, R. Stoll","doi":"10.1109/SSD.2012.6198122","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198122","url":null,"abstract":"In this paper, the feasibility of a wireless health system will be presented. The developed system is based on a sensor electronic module, a smartphone and a process management system that handles expert models for individual health estimation and delivers results from the primary data. The system was evaluated with experiments on N = 128 volunteers who were monitored in real-world settings. Ecological momentary assessment was triggered automatically by the smartphone several times per day. All participants confirmed the feasibility and ease of use of the developed system.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"2005 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127625627","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}
引用次数: 4
Comparative investigation on power grid perturbations caused by DC-link converters and matrix converters 直流链路变换器与矩阵变换器对电网扰动的比较研究
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198004
A. Schramm, H. Lanfer, J. Petzoldt, U. Radel
{"title":"Comparative investigation on power grid perturbations caused by DC-link converters and matrix converters","authors":"A. Schramm, H. Lanfer, J. Petzoldt, U. Radel","doi":"10.1109/SSD.2012.6198004","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198004","url":null,"abstract":"In recent years, the matrix converter has been discussed as a competitive alternative to the state-of-the-art DC-link converter. The matrix converter is considered to be superior due to the absent DC-link capacitor and therefore being fully integrable in silicon. Several publications deal with comparative views on power losses, efforts for realization or control strategies for both converter types. But the comparative study of the power grid's perturbation is a further viewpoint which has to be considered since both converters have to comply to electromagnetic compatibility standards. Therefore both converters are modeled with generic assumptions made on the switching functions and the modulation strategy to ensure a fair-handed basis of comparison. For both converters the spectrum influencing factors are identified and discussed.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126824903","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}
引用次数: 2
A method of creation and simulation of complex models of physiological systems for example of respiratory mechanics analogue 一种创建和模拟生理系统复杂模型的方法，例如呼吸力学模拟
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198076
I. Jabłoński
{"title":"A method of creation and simulation of complex models of physiological systems for example of respiratory mechanics analogue","authors":"I. Jabłoński","doi":"10.1109/SSD.2012.6198076","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198076","url":null,"abstract":"Modeling and simulation of the complex systems is an open question and undergoes numerous abstract conceptions and algorithmic realizations. Ability to imitate the properties and behavior of such object is also important for designing of measurement procedures. Modeling is a useful tool in explaining the fundamental processes, which are frequently unavailable for direct and non-destructive quantifying, and supports validation of measurement scheme. Practical methodology of model creation for the complex system was reported in the paper for example of respiratory mechanics assessed during a short-term airflow interruption. The source code of the batch files replaced in software dedicated to the electrical circuit analysis (PSpice and MicroCap) is generated in this attempt using original Matlab function. Designed procedure enables creation of aggregated or more or less distributed electrical equivalents of respiratory systems, including profiling the values of local properties according to the non-homogeneous rules observed in pathological states. This functionality opens the new paths for designing of optimal interrupter experiment.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122169970","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}
引用次数: 0
Efficient chaotic communication system for wireless sensing applications 用于无线传感应用的高效混沌通信系统
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6198019
H. Abdullah, A. Valenzuela
{"title":"Efficient chaotic communication system for wireless sensing applications","authors":"H. Abdullah, A. Valenzuela","doi":"10.1109/SSD.2012.6198019","DOIUrl":"https://doi.org/10.1109/SSD.2012.6198019","url":null,"abstract":"The requirements of an efficient communication scheme for wireless sensing applications have been investigated. The noncoherent direct chaotic communication scheme called chaos on-off keying (COOK) has presented itself as a promising candidate. This paper proposes a modified version of the COOK scheme to improve its performance in noisy and fading environments. The proposed scheme is designed to increase the signal space of the decision variable by using the concept of differential correlation keeping implementation requirements simple. The results show that the proposed modified version of the COOK scheme achieves less bit-error probability in noisy and fading channels at moderate signal-to-noise ratio values and almost constant detection threshold as compared with the original version.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115979714","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}
引用次数: 8
Energetical aspects in transducers operation and classification, with emphasis on electrical measurement of mechanical quantities 换能器操作和分类的能量学方面，重点是机械量的电测量
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197903
D. Stefanescu
{"title":"Energetical aspects in transducers operation and classification, with emphasis on electrical measurement of mechanical quantities","authors":"D. Stefanescu","doi":"10.1109/SSD.2012.6197903","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197903","url":null,"abstract":"Several ways in which the energy transfer is involved in the operation of electromechanical transducers are examined. Among the SI quantities, classes of intensive and extensive quantities may be distinguished, pairs of them forming together parameters having the dimension of an energy. Another interesting classification is in terms of the degree with which they appear in the fundamental equations of Physics, characterizing active and passive systems. Such systems are frequently found in the structure of force transducers. As a representative category of electromechanical devices, force transducers are deeply analyzed, their classification is commented and a few significant examples based on strain gauges are presented.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122805483","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}
引用次数: 0
Modeling and identification of temperature fields in multi-zone-furnaces 多区炉温度场的建模和识别
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197951
D. Bräuer, Andrea Rehkopf
{"title":"Modeling and identification of temperature fields in multi-zone-furnaces","authors":"D. Bräuer, Andrea Rehkopf","doi":"10.1109/SSD.2012.6197951","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197951","url":null,"abstract":"The following article describes a model for the thermodynamic transient temperature field in multi-zone-furnaces. Such plants have a wide range of application, especially in material sciences. Conventionally, one-dimensional approaches are used to define an input/output relation between heaters and sensors for each zone. Driven by the application of measuring diffusion coefficients in metallic and semiconductor melts, additional sensors can be placed near the sample. This necessitates more complex temperature models. Here, a state space representation created by a semi-discrete finite difference discretization of the temperature field is explained. It will be shown that an empirical identification process achieves good results for the approximation of the real plant.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131402936","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}
引用次数: 0
Optimal control for a class of 2-D shift variant systems 一类二维移位变系统的最优控制
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197909
H. R. Tolue, M. Shafiee
{"title":"Optimal control for a class of 2-D shift variant systems","authors":"H. R. Tolue, M. Shafiee","doi":"10.1109/SSD.2012.6197909","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197909","url":null,"abstract":"This paper suggests a new method of solving optimal control problem for F-MM I (first Fornasini-Marchesini's model) state space model of discrete two-dimensional (2-D) systems with variable coefficients. This method not only resolves the boundary conditions complexities in the 2-D optimal control problems, but also guarantees reduction of computation compared to the other methods. In order to solve the standard 2-D LQR Problem, It is shown that the 2-D system under a specified quadratic performance index can be cast as a new semi-one-dimensional (semi-1-D) system which is called “L-shaped model”. This model can be applied to other 2-D models as well. Using a theorem and two conclusions in 1-D optimal control theory, an algorithm is introduced to solve optimal control for 2-D systems. Finally, evaluation of the approach is illustrated through a numerical example. Result shows the effectiveness of the proposed procedure.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132724314","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}
引用次数: 1
Ad hoc field device integration using device profiles, concepts for automated configuration and web service technologies: Plug&Play field device integration concepts for industrial production processes 使用设备配置文件、自动化配置概念和web服务技术的现场设备集成:用于工业生产过程的即插即用现场设备集成概念
International Multi-Conference on Systems, Sygnals & Devices Pub Date : 2012-03-20 DOI: 10.1109/SSD.2012.6197997
S. Hodek, J. Schlick
{"title":"Ad hoc field device integration using device profiles, concepts for automated configuration and web service technologies: Plug&Play field device integration concepts for industrial production processes","authors":"S. Hodek, J. Schlick","doi":"10.1109/SSD.2012.6197997","DOIUrl":"https://doi.org/10.1109/SSD.2012.6197997","url":null,"abstract":"Manufacturing companies are permanently striving to improve their own production processes. So, effective engineering and set up actions are of major importance. This article focuses on concepts to automatically detect, configure and integrate field devices into the application of a superordinate logic controller. In this paper we will propose a concept for this Plug&Play field device integration based on the example scenario of the replacement of an RFID-read-write device. Starting with the formulation of fundamental requirements for Plug&Play field device integration, we are presenting a procedure for setting up field device profiles. Applying this procedure, device profiles for RFID devices are defined and implemented using the web service technology DPWS. The experimental evaluation is carried out in the testing facility of the technology initiative SmartFactoryKL. The results show that the developed concept can significantly improve the setup time for manufacturing equipment.","PeriodicalId":425823,"journal":{"name":"International Multi-Conference on Systems, Sygnals & Devices","volume":"161 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134483955","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}
引用次数: 16
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