Title :
A DBF method of localizing accuracy improvement and speech enhancement based on a new microphone arrays
Author :
Zhao Xiu Fen ; Zhang Wei ; Yang Tao Liu ; Jiang Chao Shu
Author_Institution :
Res. Inst. of Electron. Sci. & Technol., Univ. of Electron. Sci. & Te chnology of China Chengdu, Chengdu, China
Abstract :
There is a widely application in radar and mobile communication of target localization field recent years about DBF, But the contradiction between precision of target localization and localization out of focus haven´t been solved preferably. This article put forward a new linear microphone arrays which own two frameworks that can change space between arrays so that can resolve this contradiction. This method make beam-riding of mainlobe point to interested targets more precisely, enhance quality of receive signal and cut down reverberation in some degree. The result proves validity of this new array structure.
Keywords :
array signal processing; microphone arrays; reverberation; speech enhancement; DBF method; digital beam forming technology; linear microphone arrays; localization accuracy improvement; mainlobe point beam-riding; mobile communication; radar communication; receive signal quality enhancement; reverberation cut down; speech enhancement; target localization field; 3dBbeaming bandwidth; DBF; array elements spa- cing; linear microphone array; localization Accuracy; localization out of focus; pattern; reverberation;
Conference_Titel :
Signal Processing (ICSP), 2012 IEEE 11th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-2196-9
DOI :
10.1109/ICoSP.2012.6491660