Pub Date : 2005-05-16DOI: 10.1109/IMTC.2005.1604166
G. Kennedy, K. Rinne
The research, design and simulation of a programmable bandgap voltage reference is presented. This reference is novel in that it is programmable via a system on chip bus and it comprises a bandgap voltage reference that is digitally modulated by a first order delta sigma modulator and then smoothed by a passive RC filter. The key design objectives are to provide a programmable output from 0 V to 2.5 V approx. with 10-bit resolution and a temperature coefficient of less than 100 ppm/degC over a temperature range from -55degC to +125degC. Another key design objective is to integrate all passive and active components used into one 0.35 micron full custom mixed signal CMOS ASIC
{"title":"A Programmable Bandgap Voltage Reference CMOS ASIC","authors":"G. Kennedy, K. Rinne","doi":"10.1109/IMTC.2005.1604166","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604166","url":null,"abstract":"The research, design and simulation of a programmable bandgap voltage reference is presented. This reference is novel in that it is programmable via a system on chip bus and it comprises a bandgap voltage reference that is digitally modulated by a first order delta sigma modulator and then smoothed by a passive RC filter. The key design objectives are to provide a programmable output from 0 V to 2.5 V approx. with 10-bit resolution and a temperature coefficient of less than 100 ppm/degC over a temperature range from -55degC to +125degC. Another key design objective is to integrate all passive and active components used into one 0.35 micron full custom mixed signal CMOS ASIC","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127783278","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604172
Huijuan Yang, Jian Qiu Zhang
In this paper, an unscented Kalman filter (UKF)-based track fusion algorithm is developed for tracking targets in a nonlinear multisensor system. Employing the unscented Kalman filter and the measurements of the individual sensor in the multisensor system, the means and the variances of the states of a tracked target can be estimate. Based on these estimate results, an optimum state fusion scheme is obtained in terms of minimum mean square error (MMSE). The scheme can make the variance of the fused states smaller than that of the states estimated by UKF with any individual sensor in this multisensor system. Simulation results confirm the efficiency of the presented algorithm
{"title":"An Unscented Kalm an Filter-Based MultisensorTrack Fusion Algorithm","authors":"Huijuan Yang, Jian Qiu Zhang","doi":"10.1109/IMTC.2005.1604172","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604172","url":null,"abstract":"In this paper, an unscented Kalman filter (UKF)-based track fusion algorithm is developed for tracking targets in a nonlinear multisensor system. Employing the unscented Kalman filter and the measurements of the individual sensor in the multisensor system, the means and the variances of the states of a tracked target can be estimate. Based on these estimate results, an optimum state fusion scheme is obtained in terms of minimum mean square error (MMSE). The scheme can make the variance of the fused states smaller than that of the states estimated by UKF with any individual sensor in this multisensor system. Simulation results confirm the efficiency of the presented algorithm","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126221990","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604405
Y. Fujii, T. Yamaguchi
The ability of human finger in controlling force against impact load is determined by means of a novel practical method, a variation of the levitation mass method. In the method, a mass that is levitated with a pneumatic linear bearing, and hence encounters negligible friction, is made to collide with an object under test. During the collision the Doppler frequency shift of a laser beam reflecting from the mass is accurately measured using an optical interferometer. The velocity, position, acceleration and inertial force of the mass are calculated from the measured time-varying Doppler shift. The method is characterized by the facts that the preparation for the test is easy and the measurement accuracy is high. The importance of the visual information is also determined by means of conducting the tests under the condition of either the subject's eyes opened or closed
{"title":"Method for Evaluating the Force Controllability of Human Finger","authors":"Y. Fujii, T. Yamaguchi","doi":"10.1109/IMTC.2005.1604405","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604405","url":null,"abstract":"The ability of human finger in controlling force against impact load is determined by means of a novel practical method, a variation of the levitation mass method. In the method, a mass that is levitated with a pneumatic linear bearing, and hence encounters negligible friction, is made to collide with an object under test. During the collision the Doppler frequency shift of a laser beam reflecting from the mass is accurately measured using an optical interferometer. The velocity, position, acceleration and inertial force of the mass are calculated from the measured time-varying Doppler shift. The method is characterized by the facts that the preparation for the test is easy and the measurement accuracy is high. The importance of the visual information is also determined by means of conducting the tests under the condition of either the subject's eyes opened or closed","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121961754","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604212
D. Agrez
The paper presents and compares three basic approaches of the active power estimation of electrical systems under noncoherent sampling conditions when the leakage effect arises. The properties of the normal time domain approach with smoothing and summation and two frequency domain approaches with improved interpolated DFT estimations of the parameters are studied with respect to their systematic errors and effectiveness in leakage suppression. The simulations are presented showing advantages and weaknesses of compared methods in the shortening measurement time: between one and six cycles in the measurement interval. From analysis and experiments, it can be deduced that averaging of DFT coefficients around zero component provides the best estimation of the active power when the DC offset component is small enough
{"title":"Active Power Estimation in the Non-coherent Sampling: A Comparative Study","authors":"D. Agrez","doi":"10.1109/IMTC.2005.1604212","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604212","url":null,"abstract":"The paper presents and compares three basic approaches of the active power estimation of electrical systems under noncoherent sampling conditions when the leakage effect arises. The properties of the normal time domain approach with smoothing and summation and two frequency domain approaches with improved interpolated DFT estimations of the parameters are studied with respect to their systematic errors and effectiveness in leakage suppression. The simulations are presented showing advantages and weaknesses of compared methods in the shortening measurement time: between one and six cycles in the measurement interval. From analysis and experiments, it can be deduced that averaging of DFT coefficients around zero component provides the best estimation of the active power when the DC offset component is small enough","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115944128","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604520
P. Curtis, C.S. Yang, P. Payeur
Creating 3-D surface representation of large objects or wide working areas is a tedious and error-prone process using the currently available sensor technologies. The primary problem comes from the fact that laser range sensors allow to capture at most one line of points from a given position and orientation, and stereo vision systems accuracy is dependent upon the initial camera calibration, the extraction of features, and the matching of features. When the registration process is not properly controlled, registration errors tend to significantly degrade the accuracy of measurements, which is revealed to be critical in telerobotic operations where occupancy models are built directly from these range measurements. The reliability of range measurements within a singular range sensor technique can drastically distort the registration process, especially within environments unsuitable for the system. Instead of utilizing a single range sensor, we adopt the use of a multi-modal system allowing diverse modes of range sensing techniques to complement each other in the hope that one system's strength could be used to compensate for another system's weakness. Using a mixture of active and passive range sensing techniques, both giving dense and sparse datasets, this multi-modal range sensing system is integrated seamlessly with minimal processing overhead and optimal workspace
{"title":"An Integrated Robotic Multi-Modal Range Sensing System","authors":"P. Curtis, C.S. Yang, P. Payeur","doi":"10.1109/IMTC.2005.1604520","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604520","url":null,"abstract":"Creating 3-D surface representation of large objects or wide working areas is a tedious and error-prone process using the currently available sensor technologies. The primary problem comes from the fact that laser range sensors allow to capture at most one line of points from a given position and orientation, and stereo vision systems accuracy is dependent upon the initial camera calibration, the extraction of features, and the matching of features. When the registration process is not properly controlled, registration errors tend to significantly degrade the accuracy of measurements, which is revealed to be critical in telerobotic operations where occupancy models are built directly from these range measurements. The reliability of range measurements within a singular range sensor technique can drastically distort the registration process, especially within environments unsuitable for the system. Instead of utilizing a single range sensor, we adopt the use of a multi-modal system allowing diverse modes of range sensing techniques to complement each other in the hope that one system's strength could be used to compensate for another system's weakness. Using a mixture of active and passive range sensing techniques, both giving dense and sparse datasets, this multi-modal range sensing system is integrated seamlessly with minimal processing overhead and optimal workspace","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130274529","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604081
V. Aitken
Scanning laser ophthalmoscopes (SLOs) provide noninvasive image sequences of the retina with high temporal and spatial resolution. This paper describes recent methods and results for accurate saccade and drift motion estimation of the eye. The proposed method exploits the scanning nature of the SLO and assumes direct access to each scan line as it is received. This approach allows high temporal resolution in estimation of saccadic motion that is used in prediction of landmark motion for extraction of translational and rotational estimates due to drift. The high accuracy achieved leads to the capability to track specific vascular structures of interest during the image sequence. We demonstrate applications in measurement of the amplitude of the venous pulse, often observed in vessels at or near the edge of the optical disk, relative to distance along the vessel. Results are shown for both simulated and real SLO image sequences
{"title":"Retinal Motion and Microvascular Pulsation Measurements from SLO Image Sequences","authors":"V. Aitken","doi":"10.1109/IMTC.2005.1604081","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604081","url":null,"abstract":"Scanning laser ophthalmoscopes (SLOs) provide noninvasive image sequences of the retina with high temporal and spatial resolution. This paper describes recent methods and results for accurate saccade and drift motion estimation of the eye. The proposed method exploits the scanning nature of the SLO and assumes direct access to each scan line as it is received. This approach allows high temporal resolution in estimation of saccadic motion that is used in prediction of landmark motion for extraction of translational and rotational estimates due to drift. The high accuracy achieved leads to the capability to track specific vascular structures of interest during the image sequence. We demonstrate applications in measurement of the amplitude of the venous pulse, often observed in vessels at or near the edge of the optical disk, relative to distance along the vessel. Results are shown for both simulated and real SLO image sequences","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134451776","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604401
R.E. Costa, L. D. de Almeida, E. Wegelin, E. G. da Costa
Prony's method has been proposed in order to improve the monitoring of electrical machines. The paper shows that the method is efficient to track frequency deviations. The proposed method is advantageous over the method proposed in (Costa et al., 2004) because the former does not rely on the previous knowledge of fundamental frequency. It has also been showed that the quantization can deeply affect the spectrum of the analyzed signals
为了改进对电机的监测，提出了proony的方法。结果表明，该方法能有效地跟踪频率偏差。所提出的方法优于(Costa et al.， 2004)中提出的方法，因为前者不依赖于先前的基频知识。研究还表明，量化会对被分析信号的频谱产生深远的影响
{"title":"Recursive Prony's Method for Improving the Monitoring of Electrical Machines","authors":"R.E. Costa, L. D. de Almeida, E. Wegelin, E. G. da Costa","doi":"10.1109/IMTC.2005.1604401","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604401","url":null,"abstract":"Prony's method has been proposed in order to improve the monitoring of electrical machines. The paper shows that the method is efficient to track frequency deviations. The proposed method is advantageous over the method proposed in (Costa et al., 2004) because the former does not rely on the previous knowledge of fundamental frequency. It has also been showed that the quantization can deeply affect the spectrum of the analyzed signals","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128957336","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604482
A. Depari, P. Ferrari, A. Flammini, D. Marioli, A. Taroni
In the last few years Ethernet has become the standard de facto for local area network. Nowadays, it is becoming popular also as the physical layer for industrial communications, thanks to its reliability and widespread diffusion. The actual cutting edge is a minimum cycle time in the order of 100 mus and a jitter of 1 mus. Innovative instruments are needed to cope with these performances: usually they are high cost laboratory devices not suitable to be adopted in industrial environment. In this paper a PLD based instrument is proposed: it can be easily transported to an ASIC platform allowing for the implementation of a rugged low cost instrument. A prototype has been realized to verify feasibility and performances
{"title":"A New Instrum ent for Real-Tim e Ethernet Perform ance M easurem ent","authors":"A. Depari, P. Ferrari, A. Flammini, D. Marioli, A. Taroni","doi":"10.1109/IMTC.2005.1604482","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604482","url":null,"abstract":"In the last few years Ethernet has become the standard de facto for local area network. Nowadays, it is becoming popular also as the physical layer for industrial communications, thanks to its reliability and widespread diffusion. The actual cutting edge is a minimum cycle time in the order of 100 mus and a jitter of 1 mus. Innovative instruments are needed to cope with these performances: usually they are high cost laboratory devices not suitable to be adopted in industrial environment. In this paper a PLD based instrument is proposed: it can be easily transported to an ASIC platform allowing for the implementation of a rugged low cost instrument. A prototype has been realized to verify feasibility and performances","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131096993","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604503
K. Van Renterghem, J. Pletinckx, J. Vandewege, S. Temmerman
In this paper, a reconfigurable platform for the real-time digital emulation of copper access networks is presented. The instrument, using hard real-time DSP techniques on Xilinx Virtex II FPGAs, is capable of accurately reproducing the physical layer of a xDSL connection. The magnitude and absolute phase of the insertion and return loss of the twisted pair access loop consisting of cables with various characteristics and length is digitally emulated over the full VDSL bandwidth. The innovative character of the digital approach over conventional loop emulation techniques is demonstrated and its performance is assessed using several test cases
本文提出了一种可重构的铜接入网实时数字仿真平台。该仪器在Xilinx Virtex II fpga上使用硬实时DSP技术，能够准确地再现xDSL连接的物理层。在全VDSL带宽下，对由各种特性和长度的电缆组成的双绞线接入环路的插入损耗和回波损耗的幅度和绝对相位进行了数字仿真。论证了数字方法相对于传统环路仿真技术的创新性，并通过几个测试案例对其性能进行了评估
{"title":"A Reconfigurable Digital Platform for the Real-Time Emulation of Copper Access Networks","authors":"K. Van Renterghem, J. Pletinckx, J. Vandewege, S. Temmerman","doi":"10.1109/IMTC.2005.1604503","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604503","url":null,"abstract":"In this paper, a reconfigurable platform for the real-time digital emulation of copper access networks is presented. The instrument, using hard real-time DSP techniques on Xilinx Virtex II FPGAs, is capable of accurately reproducing the physical layer of a xDSL connection. The magnitude and absolute phase of the insertion and return loss of the twisted pair access loop consisting of cables with various characteristics and length is digitally emulated over the full VDSL bandwidth. The innovative character of the digital approach over conventional loop emulation techniques is demonstrated and its performance is assessed using several test cases","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130946976","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 : 2005-05-16DOI: 10.1109/IMTC.2005.1604547
M. Novotný, D. Slepicka
The determination of phase and RMS value belongs to the most important tasks of signal analysis in the frequency domain. Evaluating these parameters is frequently performed by the DFT (discrete Fourier transform) algorithm. In practice, signals are mostly sampled noncoherently. This leads to the well known effect called leakage, which results in spreading frequency spectral component energy to neighboring frequency lines. Therefore, time windows are used for leakage suppression. This paper introduces the problematic of uncertainty analysis of phase and RMS value computed from the DFT spectrum by noncoherent sampling using cosine windows. The analysis is aimed to investigate the influence of quantization noise
{"title":"Uncertainty Analysis of the Phase and RMS Value by Non-Coherent Sampling in the Frequency Domain","authors":"M. Novotný, D. Slepicka","doi":"10.1109/IMTC.2005.1604547","DOIUrl":"https://doi.org/10.1109/IMTC.2005.1604547","url":null,"abstract":"The determination of phase and RMS value belongs to the most important tasks of signal analysis in the frequency domain. Evaluating these parameters is frequently performed by the DFT (discrete Fourier transform) algorithm. In practice, signals are mostly sampled noncoherently. This leads to the well known effect called leakage, which results in spreading frequency spectral component energy to neighboring frequency lines. Therefore, time windows are used for leakage suppression. This paper introduces the problematic of uncertainty analysis of phase and RMS value computed from the DFT spectrum by noncoherent sampling using cosine windows. The analysis is aimed to investigate the influence of quantization noise","PeriodicalId":244878,"journal":{"name":"2005 IEEE Instrumentationand Measurement Technology Conference Proceedings","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133351718","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：