کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4683805 | 1349340 | 2011 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Baseline correction for digital strong-motion records by using the pre-event portion
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Baseline correction for digital strong-motion records by using the pre-event portion Baseline correction for digital strong-motion records by using the pre-event portion](/preview/png/4683805.png)
چکیده انگلیسی
:Baseline offset in digital strong-motion acceleration record and initial velocity can produce unrealistic results for ground velocity and displacement derived from the acceleration by integration. A new method is proposed for the baseline correction and initial velocity calculation. It is based on linear least-squares fitting of the pre-event portion of velocity derived from the uncorrected acceleration data. Compared with the conventional method, which is based on removing the mean values of the pre-event portions of the acceleration and velocity traces, this method has clearer physical meaning and better stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Geodesy and Geodynamics - Volume 2, Issue 1, February 2011, Pages 43–46
Journal: Geodesy and Geodynamics - Volume 2, Issue 1, February 2011, Pages 43–46
نویسندگان
Li Heng, Yao Yunsheng, Zheng Shuiming, Cai Yongjian, Lei Dongning,