Pub Date : 2013-05-06DOI: 10.1109/I2MTC.2013.6555591
I. Bua-Nunez, J. Posada-Román, J. Rubio-Serrano, J. A. García-Souto
In this paper an instrumentation system with multichannel acquisition and denoising is described and characterized for detecting and locating acoustic emissions from partial discharges in oil. A fiber optic immersed sensor and four external ultrasonic piezoelectric sensors where used in this implementation. A signal processing system based on the use of digital denoising techniques and location algorithms implemented with virtual instrumentation is proposed. Finally, an experimental platform of acoustic testing is used to characterize the performance of the instrumentation system with different types of signals and S/N ratios.
{"title":"Multichannel acquisition system and denoising for the detection and location of partial discharges using acoustic emissions","authors":"I. Bua-Nunez, J. Posada-Román, J. Rubio-Serrano, J. A. García-Souto","doi":"10.1109/I2MTC.2013.6555591","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555591","url":null,"abstract":"In this paper an instrumentation system with multichannel acquisition and denoising is described and characterized for detecting and locating acoustic emissions from partial discharges in oil. A fiber optic immersed sensor and four external ultrasonic piezoelectric sensors where used in this implementation. A signal processing system based on the use of digital denoising techniques and location algorithms implemented with virtual instrumentation is proposed. Finally, an experimental platform of acoustic testing is used to characterize the performance of the instrumentation system with different types of signals and S/N ratios.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123289901","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555594
Yung-Hsinag Chen, Chun-Li Chang, C. Hwang, Wei-Chung Wang
This paper presented an omnidirectional image of fish-eye lens for contact lenses inspection system. A contact lens placed on the fish-eye to wear glasses for simulation of human's eye. Through an omnidirectional image captured 3600 panoramic view of the contact lens. In this paper, we introduced the omnidirectional image, panorama image, perspective image, and calibration of omnidirectional image method. Two experiments are successfully showed as: (1) calibration parameters of a fisheye image. (2) omnidirectional image reconstruction experiment, 3600 panoramic image, and feature edge image. Finally, fisheye lens experimental results are proved that the establishment fish-eye lens for contact lens inspection system is feasible.
{"title":"Omnidirectional image of fish-eye lens for contact lens inspection system","authors":"Yung-Hsinag Chen, Chun-Li Chang, C. Hwang, Wei-Chung Wang","doi":"10.1109/I2MTC.2013.6555594","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555594","url":null,"abstract":"This paper presented an omnidirectional image of fish-eye lens for contact lenses inspection system. A contact lens placed on the fish-eye to wear glasses for simulation of human's eye. Through an omnidirectional image captured 3600 panoramic view of the contact lens. In this paper, we introduced the omnidirectional image, panorama image, perspective image, and calibration of omnidirectional image method. Two experiments are successfully showed as: (1) calibration parameters of a fisheye image. (2) omnidirectional image reconstruction experiment, 3600 panoramic image, and feature edge image. Finally, fisheye lens experimental results are proved that the establishment fish-eye lens for contact lens inspection system is feasible.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123339577","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555664
S. Hatfield, M. Hillstrom, D. Schultz, T. M. Werckmann, M. Ghasr, K. Donnell
This paper presents the design of a switched ultrawideband (UWB) microwave imaging array. The imaging array is designed as an interlaced bi-static transmit and receive array in order to provide optimal coverage of the sample being imaged. The array utilizes wideband Vivaldi antennas as the array elements. The array is designed for optimal spacing between its elements to satisfy the requirements of synthetic aperture imaging. The calibration procedure and utility of this array is presented.
{"title":"UWB microwave imaging array for nondestructive testing applications","authors":"S. Hatfield, M. Hillstrom, D. Schultz, T. M. Werckmann, M. Ghasr, K. Donnell","doi":"10.1109/I2MTC.2013.6555664","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555664","url":null,"abstract":"This paper presents the design of a switched ultrawideband (UWB) microwave imaging array. The imaging array is designed as an interlaced bi-static transmit and receive array in order to provide optimal coverage of the sample being imaged. The array utilizes wideband Vivaldi antennas as the array elements. The array is designed for optimal spacing between its elements to satisfy the requirements of synthetic aperture imaging. The calibration procedure and utility of this array is presented.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"PP 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126429242","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555442
L. Angrisani, D. Capriglione, L. Ferrigno, G. Miele
Nowadays, radio systems have to use the spectrum resource more intensely than in the past to meet the demanding expectations of the users. Several studies have demonstrated that portions of radio spectrum are not in use for significant periods of time, showing the necessity to design a more flexible way to manage the spectrum resource with respect to the traditional frequency allocation policy. Cognitive radios systems have been conceived to enable such flexible spectrum allocation, making more intensive and efficient spectrum use. This capability is usually called frequency agility. In literature, several spectrum sensing methods have been proposed, which promise good performance even when applied to detect very weak signals. Nevertheless, even though they meet the spectrum sensing capability requirements, they do not seem to satisfy the frequency agility capability requisites. In this framework, the paper proposes a novel measurement algorithm able to meet those requirements. Major strength of the proposal is the ability to correctly operate even in scenarios characterized by very low signal-to-noise ratios. The assessment campaign has shown the efficacy and usefulness of the proposed algorithm.
{"title":"A measurement algorithm for frequency agility in cognitive radio","authors":"L. Angrisani, D. Capriglione, L. Ferrigno, G. Miele","doi":"10.1109/I2MTC.2013.6555442","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555442","url":null,"abstract":"Nowadays, radio systems have to use the spectrum resource more intensely than in the past to meet the demanding expectations of the users. Several studies have demonstrated that portions of radio spectrum are not in use for significant periods of time, showing the necessity to design a more flexible way to manage the spectrum resource with respect to the traditional frequency allocation policy. Cognitive radios systems have been conceived to enable such flexible spectrum allocation, making more intensive and efficient spectrum use. This capability is usually called frequency agility. In literature, several spectrum sensing methods have been proposed, which promise good performance even when applied to detect very weak signals. Nevertheless, even though they meet the spectrum sensing capability requirements, they do not seem to satisfy the frequency agility capability requisites. In this framework, the paper proposes a novel measurement algorithm able to meet those requirements. Major strength of the proposal is the ability to correctly operate even in scenarios characterized by very low signal-to-noise ratios. The assessment campaign has shown the efficacy and usefulness of the proposed algorithm.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123029693","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555592
E. Balestrieri, P. Daponte, L. D. Vito, S. Rapuano
The paper presents a critical overview of the existing jitter terminology carried out as the first step to the required harmonization of the reference literature.
本文提出了一个关键的概述，现有抖动的术语进行了作为第一步，以所需的参考文献的协调。
{"title":"Jitter and its relatives: A critical overview","authors":"E. Balestrieri, P. Daponte, L. D. Vito, S. Rapuano","doi":"10.1109/I2MTC.2013.6555592","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555592","url":null,"abstract":"The paper presents a critical overview of the existing jitter terminology carried out as the first step to the required harmonization of the reference literature.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"178 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114169249","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555696
Sufeng Niu, S. Aslan, J. Saniie
In this paper, we present a high performance adaptive FIR filter hardware architecture. In particular, the RLS (Recursive Least Square) algorithm for adaptive signal processing is explored based on QR decomposition, which is accomplished by using the Givens Rotation algorithm. The Givens Rotation algorithm is implemented using a systolic array and LUT-based Newton's method. This architecture is suitable for high-speed FPGAs or ASIC designs. It also solves the tradeoff between throughput and latency issues. As a case study, this QR design is tested using Xilinx XC5VLX110T FPGA. The findings show that the system is capable of running the QR decomposition at up to 200MHz with 56 clock cycles latency.
{"title":"FPGA based architectures for high performance adaptive FIR filter systems","authors":"Sufeng Niu, S. Aslan, J. Saniie","doi":"10.1109/I2MTC.2013.6555696","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555696","url":null,"abstract":"In this paper, we present a high performance adaptive FIR filter hardware architecture. In particular, the RLS (Recursive Least Square) algorithm for adaptive signal processing is explored based on QR decomposition, which is accomplished by using the Givens Rotation algorithm. The Givens Rotation algorithm is implemented using a systolic array and LUT-based Newton's method. This architecture is suitable for high-speed FPGAs or ASIC designs. It also solves the tradeoff between throughput and latency issues. As a case study, this QR design is tested using Xilinx XC5VLX110T FPGA. The findings show that the system is capable of running the QR decomposition at up to 200MHz with 56 clock cycles latency.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114251901","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555374
Robert Salama, S. Kharkovsky
In this paper the design and the results of the investigation into the performance of an embeddable antenna module for civil engineering applications are presented. The module consists of a rectangular microstrip patch antenna, a microstrip inset feed, electronic components such as a rectifier circuit and a protective housing. The housing is used to protect the antenna, the feed and the electronic components from the physical, chemical and electromagnetic influence of the surrounding material. First, a conventional transmitting mode approach is used to analyze and optimize the antenna to operate at ~2.5 GHz when embedded in concrete. Then, a receiving mode approach is used to investigate the performance of the embedded antenna module for two different external sources of excitation; namely, a plane wave and a second antenna in free space. It has been shown that by choosing the appropriate dimensions and dielectric property of the housing, the influence of the concrete on the resonant frequency and the magnitude of the reflection coefficient has been reduced. The feasibility of the embedded antenna module along with a rectifier circuit for a wireless microwave power transmission inside concrete has been demonstrated. The simulation and measurement results obtained with early-age concrete mimicking substance using two-antenna setup are in good agreement. The antenna module can be used for wireless power transmission through building materials such as concrete and for material characterization.
{"title":"An embeddable microwave patch antenna module for civil engineering applications","authors":"Robert Salama, S. Kharkovsky","doi":"10.1109/I2MTC.2013.6555374","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555374","url":null,"abstract":"In this paper the design and the results of the investigation into the performance of an embeddable antenna module for civil engineering applications are presented. The module consists of a rectangular microstrip patch antenna, a microstrip inset feed, electronic components such as a rectifier circuit and a protective housing. The housing is used to protect the antenna, the feed and the electronic components from the physical, chemical and electromagnetic influence of the surrounding material. First, a conventional transmitting mode approach is used to analyze and optimize the antenna to operate at ~2.5 GHz when embedded in concrete. Then, a receiving mode approach is used to investigate the performance of the embedded antenna module for two different external sources of excitation; namely, a plane wave and a second antenna in free space. It has been shown that by choosing the appropriate dimensions and dielectric property of the housing, the influence of the concrete on the resonant frequency and the magnitude of the reflection coefficient has been reduced. The feasibility of the embedded antenna module along with a rectifier circuit for a wireless microwave power transmission inside concrete has been demonstrated. The simulation and measurement results obtained with early-age concrete mimicking substance using two-antenna setup are in good agreement. The antenna module can be used for wireless power transmission through building materials such as concrete and for material characterization.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121107428","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555490
C. Fallauto, Yu Liu, G. Perrone, A. Vallan
The paper presents an optical sensor suitable to detect small changes in the concentration of chemicals and specifically designed for long-term monitoring applications. The sensor exploits the surface plasmon resonance as the chemical detection technique and implements a differential configuration to compensate for parasitic effects, such as drifts, mechanical instabilities and temperature fluctuations, which greatly impair the accuracy of this type of sensors. An analysis of the impact of unwanted changes in the measurement setup is provided and an example of a compensation procedure applied to angular misalignments is given.
{"title":"A differential optical sensor for long-term monitoring of chemicals","authors":"C. Fallauto, Yu Liu, G. Perrone, A. Vallan","doi":"10.1109/I2MTC.2013.6555490","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555490","url":null,"abstract":"The paper presents an optical sensor suitable to detect small changes in the concentration of chemicals and specifically designed for long-term monitoring applications. The sensor exploits the surface plasmon resonance as the chemical detection technique and implements a differential configuration to compensate for parasitic effects, such as drifts, mechanical instabilities and temperature fluctuations, which greatly impair the accuracy of this type of sensors. An analysis of the impact of unwanted changes in the measurement setup is provided and an example of a compensation procedure applied to angular misalignments is given.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124853912","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 : 2013-05-06DOI: 10.1109/I2MTC.2013.6555457
C. Liguori, V. Paciello, A. Paolillo, A. Pietrosanto, P. Sommella
In this paper, measurement set-up and data analysis for the characterization of two-wheel vehicles suspension systems with regard to comfort and road holding is proposed. The main aim is the definition of a method for the experimental quantification of the suspension system performance. An application of the method to the verification of both comfort and safety assured by a control strategy for semi active suspensions is reported.
{"title":"Characterization of motorcycle suspension systems: Comfort and handling performance evaluation","authors":"C. Liguori, V. Paciello, A. Paolillo, A. Pietrosanto, P. Sommella","doi":"10.1109/I2MTC.2013.6555457","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555457","url":null,"abstract":"In this paper, measurement set-up and data analysis for the characterization of two-wheel vehicles suspension systems with regard to comfort and road holding is proposed. The main aim is the definition of a method for the experimental quantification of the suspension system performance. An application of the method to the verification of both comfort and safety assured by a control strategy for semi active suspensions is reported.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116758697","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}
This paper presents a novel framework for separating and reconstructing multichannel speech sources from compressively sensed linear mixtures simultaneously. The conventional approaches for blind speech separation are almost based on the Nyquist sampling theory. We proposed an approach which uses the multichannel compressive sensing theory for blind speech separation. The linear programming and gradient-based methods are used to separate the sources. Compared with the conventional blind speech separation, the proposed approach can reduce the requirements of sampling speed and operating rate of the devices. Moreover, our approach has lower computational complexity. The main contribution of this paper lies in proposing a novel procedure to estimate the sources from the measurements without reconstructing the mixed signals. Simulation results demonstrate the proposed algorithm can separate multichannel speech sources successfully.
{"title":"Blind separation of speech sources in multichannel compressed sensing","authors":"Qiao Li-yan, Congru Yin, Hongwei Xu, Hongpeng Li, Ning Fu, Yigang Zhang","doi":"10.1109/I2MTC.2013.6555719","DOIUrl":"https://doi.org/10.1109/I2MTC.2013.6555719","url":null,"abstract":"This paper presents a novel framework for separating and reconstructing multichannel speech sources from compressively sensed linear mixtures simultaneously. The conventional approaches for blind speech separation are almost based on the Nyquist sampling theory. We proposed an approach which uses the multichannel compressive sensing theory for blind speech separation. The linear programming and gradient-based methods are used to separate the sources. Compared with the conventional blind speech separation, the proposed approach can reduce the requirements of sampling speed and operating rate of the devices. Moreover, our approach has lower computational complexity. The main contribution of this paper lies in proposing a novel procedure to estimate the sources from the measurements without reconstructing the mixed signals. Simulation results demonstrate the proposed algorithm can separate multichannel speech sources successfully.","PeriodicalId":432388,"journal":{"name":"2013 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125144790","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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