Title :
Virtual audition technology for head-mounted electronic sentinel system
Author :
Guangyu Liu ; Cheng Zhang ; Xiang Zhao
Author_Institution :
Dept. of Equip. Command & Manage., Ordnance Eng. Coll., Shijiazhuang, China
Abstract :
Based on the engineering application of virtual audition in head-mounted electronic sentinel localization systems, the total response of a uniform circular array (UCA) with a rigid sphere and an impedance sphere is analyzed. The influence of offset between the UCA and the rigid sphere on the array received signals is studied. Eigenbeam beamforming is deduced in the eigenbeam space derived from the soundfield decomposition. Head related transfer function (HRTF) for the sound wave direction are synthesized automatically from measure database by combining the directivity of the eigenbeam beamforming and the algebraic expression of HRTF. This HRTF synthesis method is implemented in time domain by pre-processing the array received signals. The validity of the proposed algorithm is verified by computer simulations.
Keywords :
acoustic signal processing; array signal processing; direction-of-arrival estimation; signal synthesis; time-domain analysis; transfer functions; DOA estimation; HRTF synthesis method; UCA; algebraic expression; array received signals; computer simulations; direction-of-arrival estimation; eigenbeam beamforming; eigenbeam space; head related transfer function; head-mounted electronic sentinel localization systems; impedance sphere; sound wave direction; soundfield decomposition; time-domain analysis; uniform circular array; virtual audition technology; HRTF; Plane wave decomposition; eigenbeam beamforming; virtual audition;
Conference_Titel :
Communication Technology (ICCT), 2012 IEEE 14th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4673-2100-6
DOI :
10.1109/ICCT.2012.6511408
