کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
755070 895921 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
GA-based optimization of a MIMO ANC system considering coupling of secondary sources in a telephone kiosk
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
GA-based optimization of a MIMO ANC system considering coupling of secondary sources in a telephone kiosk
چکیده انگلیسی
Previous results show that in order to be able to reduce acoustic noise globally inside the enclosure, the frequency range of 50-300 Hz must be selected for control purpose. The mean of acoustic potential energy of the enclosure, when excited in this frequency range, is adopted as a performance measure. This performance index is penalized with the power of the signal required to excite secondary loudspeakers, in order to avoid placements that may need high voltage power amplifier for a desired performance. To find the solution of this problem, i.e. the global minimum of the performance index, several genetic algorithms are proposed and compared. In order to attain the best achievable performance in reaching the global minimum, the parameters of these genetic algorithms are tuned, and used for optimization purpose. Numerical simulations of the acoustical potential energy as well as the sound pressure at different heights of the kiosk, when active noise control (ANC) system operates, confirm the optimality of the locations proposed by the genetic algorithm.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Acoustics - Volume 70, Issue 7, July 2009, Pages 945-953
نویسندگان
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