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

被引：34
|
作者：
Luzi, G. [1 ]
Crosetto, M. [1 ]
Cuevas-Gonzalez, M. [1 ]
机构：
[1] CTTC, Div Geomat, Remote Sensing Dept, E-08860 Castelldefels, Barcelona, Spain
来源：
MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2014年 / 49卷 / 1-2期
关键词：
Radar; Interferometry; Vibration; Tall tower; Cable force tension; MODAL IDENTIFICATION; MICROWAVE; CABLES;
D O I：
10.1016/j.ymssp.2014.04.019
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
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. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：234 / 248
页数：15
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