TY - JOUR T1 - A hybrid localization method for near and far-field acoustical sources TT - یک روش ترکیبی مکان‌یابی منابع صوتی برای کاربرد‌های میدان دور و نزدیک JF - joasi JO - joasi VL - 3 IS - 1 UR - http://joasi.ir/article-1-57-en.html Y1 - 2015 SP - 10 EP - 25 KW - Localization KW - Acoustical sources KW - Direction of arrival KW - Cross bearing KW - Time delay estimations N2 - This paper proposes a hybrid acoustical source-location finding method using the hyperbolic localization and cross-bearing intersection techniques. The method employs the time delays estimations (TDE) observed from multiple sensors in order to find the location of the acoustic source in the near or far-filed. Since according to the existing literature, the conventional hyperbolic localization method does not provide enough accuracy for position-finding (PF), we propose that this method only be employed for obtaining TDEs. Then, using TDEs, the source position will be determined using the cross-bearing method. The simulation results show the significant improvement in source-position estimations as compared to traditional hyperbolic PF method. Furthermore, we also propose a method for accelerating the runtime of the optimization algorithm in the hybrid PF method.  M3 ER -