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A radar-based monitoring of the Collserola tower (Barcelona)

机译：雷达对Collserola塔（巴塞罗那）的监视

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摘要

This paper reports a set of experiments aiming at evaluating the capability of an innovative radar technique to measure the dynamic response of a 268 m high tower, the Collserola tower located in Barcelona, and its guys; the tension force of some guys is also estimated from the obtained vibration frequencies. The applied procedure was based on the use of a coherent radar system: temporal samples acquired using different observation geometries were processed to retrieve the vibration characteristics of both the tower and its guys. This was attained by observing the tower in a fully remote sensing mode, i.e. several hundred metres from the object, without installing any reflector on the tower, and under micro-tremor and wind-induced excitation. During the campaigns, which were spread over three years, the investigated technique demonstrated its capability to measure the dynamic response for a number of different points of the tower with high repeatability. The performed experiments also allowed distinguishing and characterizing the different contributions of the tower and the guys.
机译：本文报告了一组实验，旨在评估一种创新的雷达技术测量268 m高塔，巴塞罗那的Collserola塔及其人员的动力响应的能力。从获得的振动频率也可以估算出一些人的拉力。应用的程序基于相干雷达系统的使用：使用不同的观测几何体采集的时间样本经过处理，以获取塔架及其拉杆的振动特性。这是通过以完全遥感的方式（即距目标数百米）观察塔而无需在塔上安装任何反射镜，并在微震和风激发下进行的。在为期三年的战役中，所研究的技术证明了其能够以高重复性测量塔的许多不同点的动力响应的能力。进行的实验还可以区分和表征塔和人员的不同贡献。

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  • 来源
    《Mechanical systems and signal processing》 |2014年第2期|234-248|共15页
  • 作者

    G. Luzi; M. Crosetto; M. Cuevas-Gonzalez;

  • 作者单位

    Remote Sensing Department - Division of Geomatics, Centre Tecnologic de Telecomunicacions de Catalunya (CTTC), Av. Gauss, 7, E-08860 Castelldefels (Barcelona), Spain;

    Remote Sensing Department - Division of Geomatics, Centre Tecnologic de Telecomunicacions de Catalunya (CTTC), Av. Gauss, 7, E-08860 Castelldefels (Barcelona), Spain;

    Remote Sensing Department - Division of Geomatics, Centre Tecnologic de Telecomunicacions de Catalunya (CTTC), Av. Gauss, 7, E-08860 Castelldefels (Barcelona), Spain;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Radar; Interferometry; Vibration; Tall tower; Cable force tension;

    机译：雷达;干涉仪振动;高塔索力张力;

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