کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
764900 897012 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of Direction of Arrival of Seismic Wave by a Single Tri-axial Fiber Optic Geophone
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
پیش نمایش صفحه اول مقاله
Determination of Direction of Arrival of Seismic Wave by a Single Tri-axial Fiber Optic Geophone
چکیده انگلیسی

A fiber Bragg grating (FBG) geophone and a surface seismic wave-based algorithm for the direction of arrival (DOA) are described. The operational principle of FBG geophone is introduced and illustrated with systematic experimental data, demonstrating an improved FBG geophone with many advantages over the conventional geophones. An innovative, robust, and simple algorithm is developed for obtaining the bearing information on the seismic events, such as people walking, or vehicles moving. Such DOA estimate is based on the interactions and projections of surface-propagating seismic waves generated by the moving personnel or vehicles with a single tri-axial seismic sensor based on FBGs. Of particular interest is the case when the distance between the source of the seismic wave and the detector is less than or comparable to one wavelength (less than 100 m), corresponding to near-field detection, where an effective method of DOA finding lacks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Defence Technology - Volume 9, Issue 1, March 2013, Pages 1–9
نویسندگان
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