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在浅海波导中, 未知声源的本征声线相对到达时延估计是非常困难的. 声源位置在邻域内变化和声速剖面扰动对本征声线相对达到时延的影响是类似的. 基于这种思想, 提出了基于单水听器宽带信号自相关函数的水下目标定位稳健方法. 通过设计邻域位置约束, 构造加权函数, 将宽带信号自相关函数包含的交叉干扰峰值转化为能够改善目标定位性能的有用信息. 该方法不仅不需要估计本征声线的相对到达时延, 而且对搜索网格失配和环境参数失配具有相当的宽容性. 利用典型浅海环境下的仿真数据和海上实验数据(Shallow Water 2006 experiments)对所提出方法的有效性进行了验证.It is very difficult to estimate the relative arrival delay of the eigenrays for an unknown source in shallow water. The effects of a source position changing in the neighborhood and sound speed profile perturbation on arrival time of eigenvays are similar. In this paper, we present a robust localization method based on the auto-correlation function of wide-band signal of single hydrophone. By designing neighboring location constraints, a weighting function is constructed to change the peak cross-interference of the auto-correlation function to useful information that is conducible to the improving of targeting performance. In this method there is no need to estimate the relative arrival delay of the eigenray. Computer simulation shows that the robust method can achieve better localization performance, and even has tolerences of environment mismatch and searching grid mismatch. The performance of the robust method is validated through the broad-band data collected on a vertical line array during the Shallow Water 2006 experiments.
[1] Yang K D 2008 Matched-Field Processing for Underwater Acoustic Array Signals (Xi'an: Northwestern Polytechnical University Press) pp165-167 (in Chinese) [杨坤德2008水声阵列信号的匹配场处理(西安: 西北工业大学出版社)第165–167页]
[2] Yang K D, Ma Y L 2006 Acta Acoust. 31 399 (in Chinese) [杨坤德, 马远良 2006 声学学报 31 399]
[3] Woojae S, Sung-Hoon B 2002 IEEE J. Ocean. Eng. 27 642
[4] Krolik J L, Shorey J A, Nolte L W 1994 J. Comp. Acoust. 02 285
[5] Richardson A M, Nolte L W 1991 J. Acoust. Soc. Am. 89 2280
[6] Schmidt H, Baggeroer A B, Kuperman W A, Scheer E K 1990 J. Acoust. Soc. Am. 88 1851
[7] Chandler H A, Feuillade C, Smith G B 1995 J. Acoust. Soc. Am. 97 2159
[8] Sun Z G, Ma Y L, Tu Q P, Jiang X Q 1996 Acta Acoust. 21 824 (in Chinese) [孙枕戈, 马远良, 屠庆平, 姜小权 1996 声学学报 21 824]
[9] Wang Y, Zou N, Fu J, Liang G L 2014 Acta Phys. Sin. 63 034302 (in Chinese) [王燕, 邹男, 付进, 梁国龙 2014 63 034302]
[10] Li K, Fang S L, An L 2013 Acta Phys. Sin. 62 094303 (in Chinese) [李焜, 方世良, 安良 2013 62 094303]
[11] Yan S F, Ma Y L 2004 J. Electr. Inform. Technol. 26 702 (in Chinese) [鄢社锋, 马远良 2004 电子与信息学报 26 702]
[12] Jiang Y M, Chapman N R, Gerstoft P 2008 J. Acoust. Soc. Am. 124 EL135
[13] Jiang Y M, Chapman N R, Yang K, Ma Y 2009 J. Acoust. Soc. Am. 125 EL158
[14] Schmidt H 1999 OASES Verion 22 User Guide and Reference Manual (Massachusetts: Massachusetts Institute of Technology)
[15] Porter M B 1995 The KRAKEN Normal Mode Program (La Spezia: SACLANT Undersea Research Center)
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[1] Yang K D 2008 Matched-Field Processing for Underwater Acoustic Array Signals (Xi'an: Northwestern Polytechnical University Press) pp165-167 (in Chinese) [杨坤德2008水声阵列信号的匹配场处理(西安: 西北工业大学出版社)第165–167页]
[2] Yang K D, Ma Y L 2006 Acta Acoust. 31 399 (in Chinese) [杨坤德, 马远良 2006 声学学报 31 399]
[3] Woojae S, Sung-Hoon B 2002 IEEE J. Ocean. Eng. 27 642
[4] Krolik J L, Shorey J A, Nolte L W 1994 J. Comp. Acoust. 02 285
[5] Richardson A M, Nolte L W 1991 J. Acoust. Soc. Am. 89 2280
[6] Schmidt H, Baggeroer A B, Kuperman W A, Scheer E K 1990 J. Acoust. Soc. Am. 88 1851
[7] Chandler H A, Feuillade C, Smith G B 1995 J. Acoust. Soc. Am. 97 2159
[8] Sun Z G, Ma Y L, Tu Q P, Jiang X Q 1996 Acta Acoust. 21 824 (in Chinese) [孙枕戈, 马远良, 屠庆平, 姜小权 1996 声学学报 21 824]
[9] Wang Y, Zou N, Fu J, Liang G L 2014 Acta Phys. Sin. 63 034302 (in Chinese) [王燕, 邹男, 付进, 梁国龙 2014 63 034302]
[10] Li K, Fang S L, An L 2013 Acta Phys. Sin. 62 094303 (in Chinese) [李焜, 方世良, 安良 2013 62 094303]
[11] Yan S F, Ma Y L 2004 J. Electr. Inform. Technol. 26 702 (in Chinese) [鄢社锋, 马远良 2004 电子与信息学报 26 702]
[12] Jiang Y M, Chapman N R, Gerstoft P 2008 J. Acoust. Soc. Am. 124 EL135
[13] Jiang Y M, Chapman N R, Yang K, Ma Y 2009 J. Acoust. Soc. Am. 125 EL158
[14] Schmidt H 1999 OASES Verion 22 User Guide and Reference Manual (Massachusetts: Massachusetts Institute of Technology)
[15] Porter M B 1995 The KRAKEN Normal Mode Program (La Spezia: SACLANT Undersea Research Center)
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