Journal of Measurement Science and Instrumentation最新文献_第3页

Quantization effects in the polyphase N-path IIR structure 多相n径IIR结构中的量化效应

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928298

A. Krukowski, R. Morling, I. Kale

引用次数: 11

Flatness analysis of the oscilloscope frequency response by accurate step generator 用精确步进发生器分析示波器频率响应的平坦度

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929561

P. Fiorentin

引用次数: 3

Runtime support for reconfigurable real-time embedded systems 对可重构实时嵌入式系统的运行时支持

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929569

Z. Papp

{"title":"Runtime support for reconfigurable real-time embedded systems","authors":"Z. Papp","doi":"10.1109/IMTC.2001.929569","DOIUrl":"https://doi.org/10.1109/IMTC.2001.929569","url":null,"abstract":"As the embedding environment becomes more and more complex so does the embedded system itself. An aspect of the complexity, the demand for robust and fault tolerant embedded solutions is ever increasing. Consequently the embedded system design and development face new challenges including modeling, representation, execution and implementation issues. These issues cannot be addressed adequately without a matching underlying system architecture. Model integrated computing (MIC) architectures relying on multi-aspect modeling and variety of models of computation are proven to be promising alternatives for designing and generating manageable complex computing systems for various application domains. With respect to implementation one of the substantial questions is how the MIC based (self-) adapting design can be mapped into a (reconfigurable) distributed hardware platform. The paper presents a novel middleware supporting execution of adapting/reconfigurable real-time programs. The main features of MIC and its relation to adaptivity and computation model based programming are overviewed. A minimal set of functionalities, which enables to construct real-time program structures serving as an integration framework for various models of computation is presented. The design principles of the runtime environment are summarized.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"14 1","pages":"2111-2116 vol.3"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87852763","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: 3

Characterisation of dynamic biologic systems using multisine based impedance spectroscopy 动态生物系统的多正弦阻抗谱表征

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928785

R. Bragós, R. Blanco-Enrich, O. Casas, J. Rosell

{"title":"Characterisation of dynamic biologic systems using multisine based impedance spectroscopy","authors":"R. Bragós, R. Blanco-Enrich, O. Casas, J. Rosell","doi":"10.1109/IMTC.2001.928785","DOIUrl":"https://doi.org/10.1109/IMTC.2001.928785","url":null,"abstract":"The characterization of biological materials and systems using electrical impedance spectroscopy has traditionally been performed using the frequency sweep technique. When applied to in-vivo measurements, the movement induced modulation has often a period shorter than the sweep time. This drawback can be overcome using broadband signal bursts. Given that the energy amount to be injected to the biological material is limited for safety reasons, the best choice is the use of multisine signals, which concentrate all that energy in the measurement frequencies, then achieving an optimal signal-to-noise ratio. The uniform distribution of frequencies is not adequate due to the system nonlinearities and to the need of covering a three-decade frequency range. This work is concerned with the design of a quasilogarithmic multisine with a similar number of frequencies at each decade and with a safety band around each measurement frequency. This band will be free of harmonics and quadratic intermodulation products. The system has been implemented using a virtual instrument based on an arbitrary waveform generator, a digital oscilloscope and an analog frontend. The system has been validated using passive RC networks and has been applied to the in-vivo characterization of infarcted myocardium in pigs.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"116 1","pages":"44-47 vol.1"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87077455","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: 38

Uncertainty analysis in two-terminal impedance measurements with residual correction 残差校正双端阻抗测量中的不确定度分析

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929446

J. Torrents, R. Pallàs-Areny

引用次数: 3

Volterra filtration technique for IADC error correction, based on an a-priori error model 基于先验误差模型的IADC误差校正Volterra滤波技术

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929487

P. Mikulík, J. Saliga

引用次数: 2

A status report on environmental monitoring 环境监测状况报告

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929517

M. Gard

引用次数: 16

High-power high-resolution pulser for air-coupled ultrasonic NDE applications 用于空气耦合超声无损检测应用的高功率高分辨率脉冲发生器

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929502

J. Salazar, A. Turó, J. Chávez, J. Ortega, M. J. García

引用次数: 34

Real-time vehicle tracking in image sequences 图像序列中的实时车辆跟踪

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.929558

J. van Leuven, M. van Leeuwen, F. Groen

{"title":"Real-time vehicle tracking in image sequences","authors":"J. van Leuven, M. van Leeuwen, F. Groen","doi":"10.1109/IMTC.2001.929558","DOIUrl":"https://doi.org/10.1109/IMTC.2001.929558","url":null,"abstract":"We present an algorithm for tracking vehicles through an image sequence. The algorithm is based on matching a model in the image plane to each observed vehicle. The model is based on the characteristic edges of an intensity image of a vehicle. This model is applied to track vehicles through image sequences. We introduce three refinements to a standard model based tracking approach. As a first refinement, we use Kalman filtering to control the position and scale of the models. A multiple hypotheses strategy is suggested to avoid mismatches to local edges with a similar structure as (a part of) the model. As a last refinement we dynamically adapt each model to the vehicle if is being matched to. The refined model is more characteristic for the tracked vehicle and therefore increases the accuracy and robustness of the track. Each of these refinements contributes in their own way to a better overall performance of the tracking algorithm. We show that vehicles can be tracked in real-time with off the shelf processing capabilities and that our method is capable to track objects in ambiguous situations. Experiments based on practical data are presented to underline these conclusions.","PeriodicalId":68878,"journal":{"name":"Journal of Measurement Science and Instrumentation","volume":"63 1","pages":"2049-2054 vol.3"},"PeriodicalIF":0.0,"publicationDate":"2001-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90236126","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: 21

A digital measurement station for RF conducted emissions monitoring 用于射频传导辐射监测的数字测量站

Journal of Measurement Science and Instrumentation Pub Date : 2001-05-21 DOI: 10.1109/IMTC.2001.928232

C. De Capua, C. Landi, G. C. Malafronte

引用次数: 2