Reduction of acoustic mode in noise-proof cover with interference wave inducing apertures
نویسندگان
چکیده
منابع مشابه
Optical fiber acoustic sensor utilizing mode-mode interference.
A method for detecting sound using a single step-index multimode fiber is presented. The detected signal results from differences in acoustically induced phase shifts between two different waveguide modes propagating in the fiber. The relative sensitivity of this technique compared with a two-path interferometer was experimentally determined and agreed with that calculated using the fiber param...
متن کاملan investigation of the types of text reduction in subtitling: a case study of the persian film gilaneh with english subtitles
چکیده ندارد.
15 صفحه اولNoise reduction in GaN-based radio frequency surface acoustic wave filters
Related Articles Lamb wave near field enhancements for surface breaking defects in plates J. Appl. Phys. 111, 104906 (2012) Extraordinary acoustic shielding by a monolayer of periodical polymethyl methacrylate cylinders immersed in water J. Appl. Phys. 110, 014509 (2011) Meandering collimated beam of surface acoustic waves on a trigonal crystal ball Appl. Phys. Lett. 98, 123508 (2011) Interfero...
متن کاملBluff Body Noise Reduction Using Aerodynamic Interference
Abstract This paper will discuss a method of bluff body noise control that utilises the phenomenon of aerodynamic interference. This technique uses a second body (not necessarily bluff) that is placed in the wake of the bluff body whose noise we wish to control. Through proper understanding of the wake dynamics, the amplitude and phase of the noise from the downstream body can be controlled so ...
متن کاملAcoustic Noise Reduction For Mobile Telephony
In the context of mobile telephony, speech signals are often corrupted by surrounding acoustic noise such as engine, traffic and wind as well as by system-introduced noise such as quantization, handoff, and channel interference. This in turn has an adverse effect on the perceived quality and intelligibility of speech as well as on the performance of speech processing algorithms throughout the n...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Transactions of the JSME (in Japanese)
سال: 2015
ISSN: 2187-9761
DOI: 10.1299/transjsme.15-00120