Auflistung nach Schlagwort "Antennas"

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  • Passini, Ricardo; Jacobsen, Karsten (London : International Society for Photogrammetry and Remote Sensing, 2004)
    The generation of digital Orthophotos now days can be done with aerial, but also very high resolution space imagery. For a real competition the geometric and radiometric quality has to be on the same level. Different ...
  • Kazemzadeh, Reza; John, Werner; Mathis, Wolfgang (Göttingen : Copernicus GmbH, 2012)
    In this paper a parametric modeling technique for a fast polynomial extraction of the physically relevant parameters of inductively coupled RFID/NFC (radio frequency identification/near field communication) antennas is ...
  • Pollak, Bernd; Jacobsen, Karsten (London : International Society for Photogrammetry and Remote Sensing, 2000)
    The geometric changes of the surface (subsidence and horizontal displacement) caused by coal mining can be determined by photogrammetry with a sufficient accuracy. As long time stable targets sewer manholes can be used. ...
  • Klemp, O.; Armbrecht, G.; Eul, H. (Göttingen : Copernicus GmbH, 2006)
    In order to satisfy the stringent demand for an accurate prediction of MIMO channel capacity and diversity performance in wireless communications, more effective and suitable models that account for real antenna radiation ...
  • Rabe, H.; Denicke, E.; Armbrecht, G.; Musch, T.; Rolfes, I. (Göttingen : Copernicus GmbH, 2009)
    In a multitude of applications like e.g. in automotive radar systems a localization of multiple passive targets in the observed area is necessary. This contribution presents a robust approach based on trilateration to ...
  • Armbrecht, G.; Klemp, O.; Rolfes, I. (Göttingen : Copernicus GmbH, 2007)
    Starting from planar broadband log.-per. antenna design, offering the possibility of dual-polarized reception properties, in this article a generalized mathematical approach for rapidly estimating the resulting signal ...
  • Hampel, S.K.; Schmitz, O.; Klemp, O.; Eul, H. (Göttingen : Copernicus GmbH, 2007)
    The claim for multistandard operating handsets of small physical size as well as the ever increasing demand for higher data rates require new broadband operating antennas. Because of the widespread use of especially planar ...
  • Camp, M.; Herschmann, R.; Zelder, T.; Eul, H. (Göttingen : Copernicus GmbH, 2007)
    This paper shows a new method to determine the input impedance of RFID transponder antennas with a combination of on-wafer-prober and network analyzer. It is shown that the results are in a good agreement with FEM simulations ...
  • Wang, Yuanhao; Reit, Marco; Mathis, Wolfgang (Göttingen : Copernicus GmbH, 2012)
    Due to the vastly increasing use of wireless services in the car, such as WiFi, Car2Car and LTE, the requirements on bandwidth and radiation pattern of the roof antenna systems become more challenging. In this work, a ...
  • Herschmann, R.; Camp, M.; Eul, H. (Göttingen : Copernicus GmbH, 2007)
    The computer aided design process of sophisticated UHF-RFID transponder antennas requires the application of reliable simulation software. This paper describes a Matlab implemented extension of the post processor capabilities ...
  • Meyer, Johannes; Franke, Stefan; Geck, Bernd; Overmeyer, Ludger (Cambridge : Cambridge University Press, 2013)
    This paper presents a hybrid antenna design for an optically powered super high frequency (SHF) radio frequency identification transponder applicable for the integration into metal. The key feature of the antenna is its ...
  • Sabath, F.; Garbe, Heyno (Göttingen : Copernicus GmbH, 2003)
    This paper considers the effect of changes of the waveform parameters over the distance. The objective is to show the near field effects on transient radiation and how near the equipment under test can be located to an ...
  • Adamiuk, G.; Sczyslo, S.; Arafat, S.; Wiesbeck, W.; Zwick, T.; Kaiser, T.; Solbach, K. (Berlin : De Gruyter, 2009)
    This paper presents an approach for a precise 2D-localization of a mobile station in indoor scenarios using a single base station only. In the approach both, the Direction of Arrival (DoA) and the Time of Arrival (ToA), ...
  • Kral, S.T.; Reuder, J.; Vihma, T.; Suomi, I.; O'Connor, E.; Kouznetsov, R.; Wrenger, B.; Rautenberg, A.; Urbancic, G.; Jonassen, M.O.; Båserud, L.; Maronga, B.; Mayer, S.; Lorenz, T.; Holtslag, A.A.M.; Steeneveld, G.-J.; Seidl, A.; Müller, M.; Lindenberg, C.; Langohr, C.; Voss, H.; Bange, J.; Hundhausen, M.; Hilsheimer, P.; Schygulla, M. (Basel : MDPI AG, 2018)
    The aim of the research project "Innovative Strategies for Observations in the Arctic Atmospheric Boundary Layer (ISOBAR)" is to substantially increase the understanding of the stable atmospheric boundary layer (SBL) through ...
  • Shi, Liping; Andrade, Jose R.C.; Kim, Hyunwoong; Han, Seunghwoi; Nicolas, Rana; Franz, Dominik; Boutu, Willem; Heidenblut, Torsten; Segerink, Frans B.; Bastiaens, Bert; Merdji, Hamed; Kim, Seung-Woo; Morgner, Uwe; Kovačev, Milutin (American Institute of Physics Inc., 2017)
    We propose to use diabolo nanoantennas for experimentally investigating the origin of the enhanced third harmonic generation by localized surface plasmon polaritons. In such a geometry, the opposing apexes of bowties are ...
  • Pakzad, Kian; Heipke, Christian (London : International Society for Photogrammetry and Remote Sensing, 2000)
    For the interpretation of remote sensing data the traditional methods such as multispectral classification are in many cases not sufficient. This applies especially to more complex scenes. In order to interpret such scenes ...
  • Schrader, T.; Münter, K.; Battermann, S.; Garbe, Heyno (Göttingen : Copernicus GmbH, 2005)
    This work describes a method to detect and to quantify any local or mid-range discontinuity on extended flat metal planes. Often these planes are used for antenna calibration (open area test site-OATS) or the plane could ...
  • Müller, Sönke; Mota, Guilherme Lucio Abelha; Liedtke, Claus-Eberhard (London : International Society for Photogrammetry and Remote Sensing, 2004)
    The automated interpretation of aerial image data is a task with increasing significance for several applications, e.g. quality control and automatic updating of GIS data, automatic land use change detection, measurement ...
  • Battermann, S.; Trautnitz, F.W.; Garbe, Heyno (Göttingen : Copernicus GmbH, 2005)
    Standards for the validation of alternative test sites with conducting groundplane exist for the frequency range 30-1000 MHz since the end of the eighties. Recently the procedure for fully anechoic rooms (FAR) has ...
  • Nguyen, Hieu; Nguyen, Van Duc; Nguyen, Trung Kien; Maichalernnukul, Kiattisak; Zheng, Feng; Kaiser, Thomas (New York, NY : Hindawi Publishing Corporation, 2012)
    The impact of spatial correlation on the multi-input multi-output ultrawide band (MIMO-UWB) system using the time reversal (TR) technique is investigated. Thanks to TR, several data streams can be transmitted by using only ...