کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
269481 504480 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Monitoring dynamic and quasi-static deformations of large flexible engineering structures with GPS: Accuracy, limitations and promises
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات مهندسی ژئوتکنیک و زمین شناسی مهندسی
پیش نمایش صفحه اول مقاله
Monitoring dynamic and quasi-static deformations of large flexible engineering structures with GPS: Accuracy, limitations and promises
چکیده انگلیسی

During the last few years the kinematic versions (real time kinematic (RTK) and post-processing kinematic (PPK) modes) of the satellite Global Positioning System (GPS) have been used to monitor quasi-static and dynamic deformations of large slender engineering structures. However, the accuracy of the method, the outlier level (including missed and false alarms) and its limitations have not been statistically determined. For this reason we made a large number of experiments, in which harmonic movements were simulated by a rotating GPS receiver antenna, and the recorded coordinates were compared with the real ones. The outcome of this study is that in mid-latitude regions (φ<50∘φ<50∘) a simple monitoring system consisting of two GPS receivers and a commercial data processing software permits a standard accuracy of up to 15 mm and 35 mm in horizontal and vertical coordinates, respectively, at 1.5% outlier level. Harmonic frequencies in the range 0.1Hz

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 28, Issue 10, August 2006, Pages 1471–1482
نویسندگان
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