کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5025560 1470588 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Expanding research on laser coherent detection of underwater sound source
ترجمه فارسی عنوان
گسترش تحقیقات در زمینه تشخیص لرزه ای از منبع صوتی زیر آب
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
For the purpose of getting underwater acoustic source information, a new method is proposed to detect underwater acoustic source by means of laser interference based on the principle of Michelson interferometer. Information such as frequency and amplitude of underwater acoustic field can be concluded from the interference of reflected laser beams from the water surface with a reference beam. Laser coherent detection acquires information from the water surface in real time under the condition that the source is located underwater 37 cm, with 3000 Hz vibration. In terms of information processing and analysis, the original signal is filtered and processed by wavelet transform and Wigner-Ville distribution in this paper in addition to using the traditional Fourier analysis method, in order to achieve the purpose of the extraction and enhancement of weak feature signals.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - International Journal for Light and Electron Optics - Volume 139, June 2017, Pages 145-151
نویسندگان
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