Chin. Phys. Lett.  2008, Vol. 25 Issue (2): 586-588    DOI:
Original Articles |
Optimization of Directivity of Point Source Array by Using Pseudostochastic Sequences
AN Kang;SHEN Yong;OU Da-Yi
Key Laboratory of Modern Acoustics (Ministry of Education), Nanjing University, Nanjing, 210093
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AN Kang, SHEN Yong, OU Da-Yi 2008 Chin. Phys. Lett. 25 586-588
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Abstract We investigate the methods to optimize the directivity of point source array by using pseudostochastic sequences. Maximum-length sequence (MLS) array and Quadratic-residue sequence (QRS) array are theoretically analysed, and their simulated responses are shown. The results indicate that pseudostochastic sequences can be used to optimize the directivity of point source array.
Keywords: 43.38.-p      43.38.Hz      43.38.Tj     
Received: 04 May 2007      Published: 30 January 2008
PACS:  43.38.-p (Transduction; acoustical devices for the generation and reproduction of sound)  
  43.38.Hz (Transducer arrays, acoustic interaction effects in arrays)  
  43.38.Tj (Public address systems, sound-reinforcement systems)  
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AN Kang
OU Da-Yi
[1] Olson H F 1957 Acoustical Engineering (Princeton, NJ:Van Nostrand) p 35
[2] Keele D B 1990 J. Audio. Eng. Soc. 38 723
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[5] Schroeder M R 1979 J. Acoust. Soc. Am. 65 958
[6] Aarts R M and Janssen A J E M 2000 J. Acoust. Soc.Am. 107 287
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