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2014 IEEE Metrology for Aerospace (MetroAeroSpace)最新文献

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Time metrology in the Galileo navigation system: The experience of the Italian National Metrology Institute 伽利略导航系统中的时间计量:意大利国家计量研究所的经验
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865888
I. Sesia, G. Signorile, G. Cerretto, E. Cantoni, P. Tavella, A. Cernigliaro, A. Samperi
{"title":"Time metrology in the Galileo navigation system: The experience of the Italian National Metrology Institute","authors":"I. Sesia, G. Signorile, G. Cerretto, E. Cantoni, P. Tavella, A. Cernigliaro, A. Samperi","doi":"10.1109/METROAEROSPACE.2014.6865888","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865888","url":null,"abstract":"Timekeeping is crucial in Global Navigation Satellite Systems (GNSS), being the positioning accuracy directly related to a time measurement. As a consequence, the typical expertise of time metrology laboratories is necessary in many different aspects of a navigation system. This paper presents the experience of INRIM in the development of the Galileo navigation system from the earlier studies till the very recent In Orbit Validation phase showing how the time metrology practice has been useful in the understanding of time aspects of navigation and showing as well how the navigation service perspective has stimulated new ideas and better understanding of time measures.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124621311","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
Multi-triggering and signal extraction for acoustic emissions monitoring 声发射监测的多重触发和信号提取
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865954
F. Lamonaca, D. L. Carní, A. Carrozzini, D. Grimaldi, R. Olivito
{"title":"Multi-triggering and signal extraction for acoustic emissions monitoring","authors":"F. Lamonaca, D. L. Carní, A. Carrozzini, D. Grimaldi, R. Olivito","doi":"10.1109/METROAEROSPACE.2014.6865954","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865954","url":null,"abstract":"Acoustic Emission (AE) testing is a common practice in the monitoring of aerospace structures. Multi-receiving transducers and multi-triggering acquisition modality are used in the continuous monitoring of AE to overcome the problems of signal loss and to reduce the storage memory. Nevertheless, the stored samples are related to both AE signal and noise. A further reduction of storage memory is proposed in the paper by discarding the noise samples. The goal is ensured by analysis procedure that: (i) extracts the AE signal samples in efficient manner, and (ii) establishes the stop acquisition in adaptive manner without a priori information about the length of the AE signal. Experimental tests assess the effectiveness of the proposed analysis procedure to monitor all the AE events occurring inside concrete specimens, and to reduce the storage memory.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"277 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121021314","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
Strain gauge sensors based on thermoplastic nanocomposite for monitoring inflatable structures 基于热塑性纳米复合材料的应变传感器监测充气结构
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865899
A. Pecora, L. Maiolo, A. Minotti, Ruggero De Francesco, Eduardo De Francesco, F. Leccese, M. Cagnetti, A. Ferrone
{"title":"Strain gauge sensors based on thermoplastic nanocomposite for monitoring inflatable structures","authors":"A. Pecora, L. Maiolo, A. Minotti, Ruggero De Francesco, Eduardo De Francesco, F. Leccese, M. Cagnetti, A. Ferrone","doi":"10.1109/METROAEROSPACE.2014.6865899","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865899","url":null,"abstract":"In this work we present an investigation on a conductive thermoplastic nanocomposite used as flexible and stretchable strain gauge to be applied on inflatable structures for both terrestrial and extra-terrestrial applications. In particular we analysed the sensor behaviour by using an one-dimensional expansion system for increasing strain up to 5% and we studied the device changing in temperature. The strain gauge was also tested after several expansion cycles thus analysing the sensor response in time and ageing effects. Finally we tested the sensor on an inflatable naval fender in order to reproduce the sensor behaviour in real conditions.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"343 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122753105","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: 27
GNSS software receiver as navigation sensor in very high orbits GNSS软件接收机作为高轨道导航传感器
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865890
G. Palmerini
{"title":"GNSS software receiver as navigation sensor in very high orbits","authors":"G. Palmerini","doi":"10.1109/METROAEROSPACE.2014.6865890","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865890","url":null,"abstract":"Space navigation in very high Earth orbits and in lunar transfers is based mainly on ground-based tracking. It can be possible to spare the expensive and complex control segment by making the most of Global Navigation Satellite Systems (GNSS). A suitable receiver would be an application-specific sensor, based on software radio architecture and quite different from typical terrestrial devices, meaning that it will lacks the tracking section and will work in the so-called snapshot mode. The knowledge of the orbital dynamics and a moderate quality onboard clock can provide a first solution estimate which is accurate enough for the sensor to meaningfully exploit, with the help of a limited external aiding, the received signals. The receiver therefore becomes a navigation sensor working outside the primary GNSS service volume, where signals are extremely weak and frequently disrupted by outages.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134605051","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: 5
Miniaturized Fiber Bragg Grating spectrometer 小型化光纤布拉格光栅光谱仪
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865977
S. Marchetti, Fabiano Tuccillo
{"title":"Miniaturized Fiber Bragg Grating spectrometer","authors":"S. Marchetti, Fabiano Tuccillo","doi":"10.1109/METROAEROSPACE.2014.6865977","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865977","url":null,"abstract":"In this paper, an overview of a miniaturized high performance spectrometer with a brief description of the equipment and technology will be presented focusing on its main application and performance. We discuss the development of a miniature C+L band spectrometer, operating in the 1500-1600 nm region, based on a diffractive optic technology. The main device used is focused on FBG interrogation for transducing applications since FBG sensors exceed other conventional electric sensors in many aspects, for instance, immunity to electromagnetic interference, compact size, light weight, flexibility, stability, high temperature tolerance, and resistive to harsh environment.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132564449","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
Self-optimizing compensation of large component deformations 大构件变形自优化补偿
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865900
R. Schmitt, M. Jansen, Felix Bertelsmeier
{"title":"Self-optimizing compensation of large component deformations","authors":"R. Schmitt, M. Jansen, Felix Bertelsmeier","doi":"10.1109/METROAEROSPACE.2014.6865900","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865900","url":null,"abstract":"One major challenge in aircraft assembly is the compensation of deformations of large components. These deformations are product-specific and can not be planned in advance. For an efficient use of robot-based assembly system not only automated but self-optimizing control strategies are required which can autonomously adapt robot motions and forces depending on the current situation. For this control scenario models are needed which describe the components behavior to external forces and can be used for process control. For an efficient calculation during assembly the model is based on simple mathematical equations - accuracy is achieved by integrating a measurement routine to identify deformations and stiffness parameters of the component in order run the models and algorithms with real product parameters. The models and algorithms are implemented and validated within a simulation environment and will be applied to a robot system for shell assembly in future research.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131160225","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
The microwave radiometers on-board MetOp second generation satellites MetOp第二代卫星上的微波辐射计
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865995
S. D'addio, V. Kangas, U. Klein, M. Loiselet, G. Mason
{"title":"The microwave radiometers on-board MetOp second generation satellites","authors":"S. D'addio, V. Kangas, U. Klein, M. Loiselet, G. Mason","doi":"10.1109/METROAEROSPACE.2014.6865995","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865995","url":null,"abstract":"This paper presents the general design and performances of the microwave instruments suite to be embarked on the next generation of Meteorological Operational satellites MetOp-SG. The instruments developed under ESA management are an integral part of the second generation of the EUMETSAT Polar System. The unique frequency range covered reaches from 18 to 664 GHz and is provided by three separate instruments for a time span of more than 20 years.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133066683","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
On-the-fly outlier rejection in high-precision spaceborne GPS applications 高精度星载GPS应用中的动态异常抑制
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865891
U. Tancredi, A. Renga, M. Grassi
{"title":"On-the-fly outlier rejection in high-precision spaceborne GPS applications","authors":"U. Tancredi, A. Renga, M. Grassi","doi":"10.1109/METROAEROSPACE.2014.6865891","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865891","url":null,"abstract":"This paper presents a technique for on-the-fly rejection of GPS pseudorange data outliers. It is developed for applications in whom high accuracy navigation is needed in real time, as for the relative positioning of satellites in Low Earth Orbit. The proposed technique relies on two metrics screening the residual ranging errors in the Zero-Difference and Single-Difference pseudorange measurements with respect to an a-priori threshold. Preliminary tests carried out on flight data from the Gravity Recovery and Climate Experiment mission demonstrate the effectiveness of the proposed approach.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115446317","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
Software-defined satellite ranging measurements using laboratory signal analyzer 软件定义的卫星测距测量使用实验室信号分析仪
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865944
A. Alilla, A. Di Carlofelice, M. Faccio, Ilaria Lucresi, P. Tognolatti
{"title":"Software-defined satellite ranging measurements using laboratory signal analyzer","authors":"A. Alilla, A. Di Carlofelice, M. Faccio, Ilaria Lucresi, P. Tognolatti","doi":"10.1109/METROAEROSPACE.2014.6865944","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865944","url":null,"abstract":"In the present paper we describe a satellite ranging measurement experimental campaign. Measures were made on the Telstar 12 Eutelsat satellite, using the general purpose laboratory instrument ANRITSU MS2830A spectrum/signal analyzer and vector signal generator. All measurements were carried at Telespazio Fucino Space Centre (Central Italy). The developed approach can measure the satellite ranging in realtime and correct the Doppler effect, producing accurate results.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"223 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122885694","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
Distance measurement technique in hemispherical area for indoor vertical take-off and landing unmanned aerial vehicle 室内垂直起降无人机半球形区域距离测量技术
2014 IEEE Metrology for Aerospace (MetroAeroSpace) Pub Date : 2014-05-29 DOI: 10.1109/METROAEROSPACE.2014.6865895
Bartosz Brzozowski, P. Kordowski, Z. Róchala, K. Wojtowicz
{"title":"Distance measurement technique in hemispherical area for indoor vertical take-off and landing unmanned aerial vehicle","authors":"Bartosz Brzozowski, P. Kordowski, Z. Róchala, K. Wojtowicz","doi":"10.1109/METROAEROSPACE.2014.6865895","DOIUrl":"https://doi.org/10.1109/METROAEROSPACE.2014.6865895","url":null,"abstract":"This paper presents an approach to measure distance to obstacles in a hemispherical area around an unmanned aerial vehicle (UAV). The developed system is based on an infrared depth sensor that returns data as a range image. The sensor is rotated at constant speed so that a measurements are performed at predefined angles which results with the data about distances to objects in a hemisphere around the sensors position. The system was tested in static and dynamic laboratory conditions. Results obtained from those tests reassure its suitability as a part of a collision avoidance system.","PeriodicalId":162403,"journal":{"name":"2014 IEEE Metrology for Aerospace (MetroAeroSpace)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127337514","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: 5
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