时延匹配加权的舷外异常噪声源曲面投影定位方法
|
摘要
对现有的"滤波-时延估计-双曲面定位"的声源定位方法进行改进。结合经验模态分解消噪方法和广义平均幅度差函数时延估计方法,利用能量分布准则和频谱一致性准则进行源信号本征模态函数筛选和信号重构,提取多组分析信号求取时延,并利用时延匹配准则对真实时延值进行筛选和加权处理。考虑水听器贴近壳体布放,对壳体进行建模,并按照象限投影到平面再进行双曲线定位。分别进行模型系泊及航行实验,实验结果表明,改进后的定位方法有更高的定位精度,且减小了时延估计误差造成的定位精度影响。
An improved localization method consisting of ‘filtering-time delay estimation-hyperbolic localization' is proposed. Combining the Empirical Mode Decomposition(EMD) and weighted average magnitude difference function time delay estimation method, the original signals are decomposed into Intrinsic Mode Function(IMF) components,and energy distribution criterion and spectrum consistency criterion are used to select IMFs which can represent the physical characteristics of source signal. Then applying several sets of signals to estimate the time delay, and a vector matching criterion is proposed to select the correct time delay estimation. Considering the hydrophones location, a shell model is established and projected to plane according to quadrant before hyperbolic localization. Results of mooring and sailing tests show that the proposed method improves the localization accuracy, and reduces the influence caused by time delay estimation errors.
An improved localization method consisting of ‘filtering-time delay estimation-hyperbolic localization' is proposed. Combining the Empirical Mode Decomposition(EMD) and weighted average magnitude difference function time delay estimation method, the original signals are decomposed into Intrinsic Mode Function(IMF) components,and energy distribution criterion and spectrum consistency criterion are used to select IMFs which can represent the physical characteristics of source signal. Then applying several sets of signals to estimate the time delay, and a vector matching criterion is proposed to select the correct time delay estimation. Considering the hydrophones location, a shell model is established and projected to plane according to quadrant before hyperbolic localization. Results of mooring and sailing tests show that the proposed method improves the localization accuracy, and reduces the influence caused by time delay estimation errors.
引文
1 Liao Fengchai, Li Peng, Liu Wenju. Auditory filter based broadband MUSIC algorithm for sound source localization.Chinese Journal of Acoustics, 2013; 32(4):439-453
2 姚直象,胡金华,姚东明.基于多重信号分类法的一种声矢量阵方位估计算法.声学学报,2008; 33(4):305-309
3 吴晓平,顾治华,舒红波,冯海林.一种线性最小二乘法的声源目标精确定位方法.声学学报,2016; 41(1):87-93
4 鄢社锋,马远良,侯朝焕.宽带波束域相干信号子空间高分辨方位估计.声学学报,2006; 31(5):418-424
5 Lei Z, Yang K, Duan R et al. Localization of low-frequency coherent sound sources with compressive beamformingbased passive synthetic aperture. J. Acoust. Soc. Am.,2015; 137(4):255-260
6 滕鹏晓,章林柯,陈日林,刘哲,杨亦春.基于双传声器对的多声源二维定位跟踪算法.声学学报,2010; 35(2):230-234
7 张学森,冯海泓,黄敏燕,郭霖,孔繁慧.两步法提高时延差估计精度的分析和实验验证.声学学报,2013; 38(2):153-159
8 Miao Feng, Yang Diange, Wen Junjie, Lian Xiaomin.Moving sound source localization based on triangulation method. J. Sound Vib., 2016; 385:93-103
9 Lui K W K, Chan F K W, So H C. Accurate time delay estimation based passive localization. Signal Processing,2009; 89(9):1835-1838
10 Duff A L, Eddine Hamdi S, Plantier G et al. Time delay estimation for acoustic source location by means of shorttime cross-correlation. IEEE Sensors, 2011:1885-1888
11 封皓,靳世久,曾周末,安阳,张溪默.基于三阶累积量及自适应滤波时延估计的管道定位方法.振动与冲击,2011; 30(9):207-210
12 Knapp C, Carter G. The generalized correlation method for estimation of time delay. IEEE Trans. Acoust. Speech Signal Process., 1976; 24(4):320-327
13 Hussain Z M, Boashash B. Hilbert transformer and time delay:Statistical Comparison in the presence of Gaussian noise. IEEE Trans. Signal Process., 2002; 50(3):501-508
14 王宏禹,邱天爽.自适应噪声抵消与时间延迟估计.大连:大连理工大学出版社,1999:170-197
15 Wu Y. Time delay estimation of non-Gaussian signal in unknown Gaussian noises using third-order cumulants. IEEE Electronics Letters, 2002; 38(16):930-931
16 陈韶华,赵冬艳,陈川.海洋声学环境下水中声源的时延估计法定位精度分析.声学学报,2014; 39(5):549-556
17 Chen J, Benesty J, Huang Y. Performance of GCC-and AMDF-Based time-delay estimation in practical reverberant environments. EURASIP J. Adv. Signal Process.,2005; 2005(1):25-36
18 徐耀松,付华,王丹丹.基于广义加权的AMDF时延估计方法研究.传感技术学报,2013; 26(3):421-424
19 李关防,赵安邦,惠俊英,王逸林.基于经验模态分解的物体入水声检测及测向研究.声学学报,2008; 33(6):548-554
20 范文涛,章新华,夏志军,康春玉,董明,蒋飚.应用经验模态分解的拖船噪声信号重构及抵消方法.声学学报,2012; 37(6):574-582
21 赵江海,杨慧,顾菊平,叶晓东.基于短时能量的声发射源定位方法研究.振动与冲击,2013; 32(23):110-114
22 孙书学,顾晓辉,吕艳新.基于经验模式分解的广义互相关时延估计.探测与控制学报,2009; 31(2):5-9
23 Bishop A N, Fidan B, Dogancay K et al. Exploiting geometry for improved hybrid AOA/TDOA based localization.Signal Processing, 2008; 88(7):1775-1779
24 Pallas M A, Lelong J, Chatagnon R. Characterisation of tram noise emission and contribution of the noise sources.Applied Acoustics, 2011; 72(7):437-450
25 王婷.EMD算法研究及其在信号去噪中的应用.哈尔滨:哈尔滨工程大学,2010
2 姚直象,胡金华,姚东明.基于多重信号分类法的一种声矢量阵方位估计算法.声学学报,2008; 33(4):305-309
3 吴晓平,顾治华,舒红波,冯海林.一种线性最小二乘法的声源目标精确定位方法.声学学报,2016; 41(1):87-93
4 鄢社锋,马远良,侯朝焕.宽带波束域相干信号子空间高分辨方位估计.声学学报,2006; 31(5):418-424
5 Lei Z, Yang K, Duan R et al. Localization of low-frequency coherent sound sources with compressive beamformingbased passive synthetic aperture. J. Acoust. Soc. Am.,2015; 137(4):255-260
6 滕鹏晓,章林柯,陈日林,刘哲,杨亦春.基于双传声器对的多声源二维定位跟踪算法.声学学报,2010; 35(2):230-234
7 张学森,冯海泓,黄敏燕,郭霖,孔繁慧.两步法提高时延差估计精度的分析和实验验证.声学学报,2013; 38(2):153-159
8 Miao Feng, Yang Diange, Wen Junjie, Lian Xiaomin.Moving sound source localization based on triangulation method. J. Sound Vib., 2016; 385:93-103
9 Lui K W K, Chan F K W, So H C. Accurate time delay estimation based passive localization. Signal Processing,2009; 89(9):1835-1838
10 Duff A L, Eddine Hamdi S, Plantier G et al. Time delay estimation for acoustic source location by means of shorttime cross-correlation. IEEE Sensors, 2011:1885-1888
11 封皓,靳世久,曾周末,安阳,张溪默.基于三阶累积量及自适应滤波时延估计的管道定位方法.振动与冲击,2011; 30(9):207-210
12 Knapp C, Carter G. The generalized correlation method for estimation of time delay. IEEE Trans. Acoust. Speech Signal Process., 1976; 24(4):320-327
13 Hussain Z M, Boashash B. Hilbert transformer and time delay:Statistical Comparison in the presence of Gaussian noise. IEEE Trans. Signal Process., 2002; 50(3):501-508
14 王宏禹,邱天爽.自适应噪声抵消与时间延迟估计.大连:大连理工大学出版社,1999:170-197
15 Wu Y. Time delay estimation of non-Gaussian signal in unknown Gaussian noises using third-order cumulants. IEEE Electronics Letters, 2002; 38(16):930-931
16 陈韶华,赵冬艳,陈川.海洋声学环境下水中声源的时延估计法定位精度分析.声学学报,2014; 39(5):549-556
17 Chen J, Benesty J, Huang Y. Performance of GCC-and AMDF-Based time-delay estimation in practical reverberant environments. EURASIP J. Adv. Signal Process.,2005; 2005(1):25-36
18 徐耀松,付华,王丹丹.基于广义加权的AMDF时延估计方法研究.传感技术学报,2013; 26(3):421-424
19 李关防,赵安邦,惠俊英,王逸林.基于经验模态分解的物体入水声检测及测向研究.声学学报,2008; 33(6):548-554
20 范文涛,章新华,夏志军,康春玉,董明,蒋飚.应用经验模态分解的拖船噪声信号重构及抵消方法.声学学报,2012; 37(6):574-582
21 赵江海,杨慧,顾菊平,叶晓东.基于短时能量的声发射源定位方法研究.振动与冲击,2013; 32(23):110-114
22 孙书学,顾晓辉,吕艳新.基于经验模式分解的广义互相关时延估计.探测与控制学报,2009; 31(2):5-9
23 Bishop A N, Fidan B, Dogancay K et al. Exploiting geometry for improved hybrid AOA/TDOA based localization.Signal Processing, 2008; 88(7):1775-1779
24 Pallas M A, Lelong J, Chatagnon R. Characterisation of tram noise emission and contribution of the noise sources.Applied Acoustics, 2011; 72(7):437-450
25 王婷.EMD算法研究及其在信号去噪中的应用.哈尔滨:哈尔滨工程大学,2010