互谱相关的舷侧双线阵空间谱估计方法
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摘要
针对舷侧艏艉双线阵基阵结构特点,开展了自适应波束形成和互谱相关的双阵空间谱估计研究。根据互谱测向原理提出了基于互谱相关的空间谱估计方法,与常规波束形成、自适应波束形成进行组合,研究了各不同方法的双线阵谱估计性能。研究结果表明:互谱相关空间谱估计法具有较好的噪声抑制能力;自适应波束形成与互谱相关相结合的空间谱估计方法最适合进行舷侧艏艉双线阵空间谱估计。
Considering the structural features of the flank twin-line array, researches on spatial spectrum estimation of twin-line array based on adaptive beam-forming and cross-spectrum correlation were carried out. A spatial spectrum estimation method based on cross-spectrum correlation is proposed according to the theory of cross-spectrum. The study of spectrum estimation performance comparison of the twin-line array was finished by that method combined with the conventional beam-forming and the adaptive beam-forming respectively. The results prove that the method based on cross-spectrum correlation has a better capability in noise suppression; and the method, which combined adaptive beam-forming with cross-spectrum correlation, is the best fit for spatial spectrum estimation of the flank twin-line array.
Considering the structural features of the flank twin-line array, researches on spatial spectrum estimation of twin-line array based on adaptive beam-forming and cross-spectrum correlation were carried out. A spatial spectrum estimation method based on cross-spectrum correlation is proposed according to the theory of cross-spectrum. The study of spectrum estimation performance comparison of the twin-line array was finished by that method combined with the conventional beam-forming and the adaptive beam-forming respectively. The results prove that the method based on cross-spectrum correlation has a better capability in noise suppression; and the method, which combined adaptive beam-forming with cross-spectrum correlation, is the best fit for spatial spectrum estimation of the flank twin-line array.
引文
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[2]Toshiaki Nakamura,Takuya Shimura.Acoustic Systems of the AUV"URASHIMA"[C].The Eleventh(2001)International Offshore and Polar Engineering Conference,2001:674-678.
[3]杨秀庭,赵晓哲.远程鱼雷目标主动声纳探测性能分析[J].兵工学报,2012,33(4):503-507.Yang Xiuting,Zhao Xiaozhe.Analysis of Detecting Performance of Active Sonar in Long-range Torpedo[J].ACTA ArmamentarII,2012,33(4):503-507.
[4]赵德鑫,李婷,黄芝平,等.无人潜航器舷侧阵声呐匹配场被动定位方法研究[J].湖南大学学报(自然科学版),2013,40(8):76-82.Zhao Dexin,Li Ting,Huang Zhiping,et al.Matched-field Source Localization Using the Flank Arrayof Unmanned Underwater Vehicle[J].Journal of Hunan University(Natural Sciences),2013,40(8):76-82.
[5]HODGES R P.Underwater acoustics:analysis,design and performance of sonar[M].West Sussex:Wiley,2010.
[6]MA L K,YU X Y.Optimal detection in flank array[J].Applied Mechanics and Materials(S1660-9336),2011,65(1):1381-1384.
[7]李陶,汪学刚,周云,等.大孔径宽带数字阵列时域波束形成方法[J].现代雷达,2015,37(6):21-25.Li Tao,Wang Xuegang,Zhou Yun,et al.Beamfoming Methods in Time Domain for WidebandDigital Arraywith Large Aperture[J].Modem Radar,2015,37(6):21-25.
[8]杨晴,王良.线性约束自适应逆波束形成研究[J].应用声学,2017,36(2):168-174.Yang Qing,Wang Liang.The study on linear constraint adaptive inverse beam forming[J].Journal of Applied Acoustics,2017,36(2):168-174.
[9]Lie J P,Ser W,See C M S.Adaptive uncertainty based iterative robust Capon beamformer using steering vector mismatch estimation[J].IEEE Transactions on Signal Processing(S1053-587X),2011,59(9):4483-4488.
[10]李晋,王晓庆,陈卫东.基于常规波束合成的分裂阵互谱定向研究[J].无线电工程,2016,46(2):36-40.Li Jin,Wang Xiaoqing,Chen Weidong.Research on Cross-spectrum Direction-finding with Splitting Beam Based on Conventional Beam-forming[J].Radio Engineering,2016,46(2):36-40.
[11]Wen Zhong,Li Liping,Zhang Xixiang.Wideband Angle of Arrival Estimation of Chirp Signals Using Virtual Wignerville Distribution[J].Journal of systems Engineering and Electronics,2007,18(2):243-248.
[12]侯云山,蒋敏.无人水下航行器舷侧阵多目标探测技术[M].北京:电子工业出版社,2014.Hou Yunshan,Jiang Min.Multiple target detection technology using flank array of UUV[M].Beijing:Publishing House of Electronics Industry,2014.
[13]王永良,陈辉,彭应宁,等.空间谱估计理论与算法[M].北京:清华大学出版社,2004.Wang Yongliang,Chen Hui,Peng Yingning,et al.Spatial spectral estimation theory and algorithm[M].Beijing:Tsinghua University Press,2004.
[14]梁国龙,韩博,范展.近场自适应波束形成的零陷展宽方法[J].华中科技大学学报(自然科学版),2013,41(8):34-39.Liang Guolong,Han Bo,Fan Zhan.Null broadening of near-field adaptive beamforming[J].Journal of Huazhong University of Science and Technology(Natural Science Edition),2013,41(8):34-39.
[15]蒋飚,朱埜,孙长瑜.一种宽带高分辨MVDR有效算法研究[J].系统工程与电子技术,2005,27(7):1186-1188.Jiang Biao,Zhu Ye,Sun Changyu.Research on an efficient wideband high resolution MVDR algorithm[J].Systems Engineering and Electronics,2005,27(7):1186-1188.
[16]林智勇,陶建武.基于矢量平滑的相关源MVDR波束成形[J].通信学报,2013,34(1):96-104.Lin Zhiyong,Tao Jianwu.MVDR beamforming for correlated signal with vector smoothing[J].Journal on Communications,2013,34(1):96-104.
[17]游鸿,黄建国.基于MVDR的宽带水下被动声自导系统远程目标检测方法[J].兵工学报,2009,30(2):160-164.You Hong,Huang Jianguo.Setection of Long-distance Object Based on MVDR for Wideband Underwater Passive Acoustic Home Guide System[J].ACTAArmamentarII,2009,30(2):160-164.