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Based on the passive synthetic aperture principle, a new robust high-resolution focused array signal processing method of moving sound source localization and identification is proposed in this paper. By means of the integrated optimization, this method generates the coordinates of a virtual array and the data matrix through the vector maximum likelihood focused algorithm, then utilizes the sparse virtual array focused algorithm based on the worst-case performance optimization to obtain the robust high-resolution localization and recognition effects. The theory and the simulation analysis show that this method is applicable to the complex experimental situations such as non-uniform motion and tipsy array, and the focused spatial spectrum indicates the greater dynamic range, the sharper focused peak, and the stronger ability to suppress the fluctuations of the background noise. The higher robustness and better results of this proposed method are verified in the lake experiment. Under the same experimental condition, the dynamic range of high-resolution MVDR focused algorithm is only 3.5dB, however, it can reach 50 dB by the proposed method.
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Keywords:
- robustness /
- localization and identification of the moving noise sound source /
- vector sensor array /
- worst-case performance optimization
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[1] Ferguson B G 1998 J. Acoust. Soc. Am. 104 947
[2] Nuttall A H, Wilson J H 2000 J. Acoust. Soc. Am. 108 2256
[3] Cho Y T, Roan M J 2009 J. Acoust. Soc. Am. 125 944
[4] Bi C X, Chen J, Chen X Z, Li W B 2006 Acta Phys. Sin. 55 1264(in Chinese) [毕传兴、陈 剑、陈心昭、李卫兵 2006 55 1264]
[5] Zhang H B, Jiang W K, Wan Q 2008 Acta Phys. Sin. 57 313(in Chinese) [张海滨、蒋伟康、万 泉 2008 57 313]
[6] Yang D G, Luo Y G, Li B, Li K Q, Lian X M 2010 Acta Phys. Sin. 59 4738(in Chinese) [杨殿阁、罗禹贡、李 兵、李克强、连小珉 2010 59 4738]
[7] Park S H, Kim Y H 2000 J. Acoust. Soc. Am. 108 2719
[8] Park S H, Kim Y H 2001 J. Acoust. Soc. Am. 110 2326
[9] Yang D G, Zheng S F, Luo Y G, Lian X M, Jiang X Y 2002 Acta Acust. 27 357(in Chinese) [杨殿阁、郑四发、罗禹贡、连小珉、蒋孝煜 2002 声学学报27 357]
[10] Pesavento M, Gershman A B 2001 IEEE Trans. Sign. Process. 49 1310
[11] Chen J C, Hudson R E, Yao K 2002 IEEE Trans. Sign. Process. 50 1843
[12] Liu C F, Liao G S 2008 Acta Electron. Sin. 36 581 (in Chinese) [刘聪锋、廖桂生 2008 电子学报 36 581]
[13] Liu C F, Liao G S 2010 Acta Electron. Sin. 38 1249(in Chinese) [刘聪锋、廖桂生 2010 电子学报 38 1249]
[14] Liu C F, Liao G S 2010 J. Xidian Univ.(Nat. Sci.) 37 1(in Chinese) [刘聪锋、廖桂生 2010 西安电子科技大学学报(自然科学版) 37 1]
[15] Vorobyov S A, Gershman A B, Luo Z Q 2003 IEEE Trans. Sign. Process. 51 313
[16] Li J, Stoica P, Wang Z S 2003 IEEE Trans. Sign. Process. 51 1702
[17] Robert G L, Stephen P B 2005 IEEE Trans. Sign. Process. 53 1684
[18] Yan S F, Ma Y L, Sun C 2006 Sci. Chin. Ser.E 36 153(in Chinese) [鄢社锋、马远良 2006 中国科学E辑 36 153]
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