矢量水听器组合通道后置自适应处理与应用  

Vector hydrophone combined channel post adaptive processing and its application

作　　者：马林 赵安邦[2,3,4,5,6] 汪科任 曾财高 MA Lin;ZHAO Anbang;WANG Keren;ZENG Caigao(School of Electronics and Information, Jiangsu University of Science and Technology, Zhenjiang 212003, China;College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China;College of Engineering, Tibet University, Lhasa, 850000, China;Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China;Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China;National Key Laboratory of Science and Technology on Underwater Acoustic Antagonizing, China State Shipbuilding Corporation Systems Engineering Research Institute, Beijing 100036, China)

机构地区：[1]江苏科技大学电子信息学院,江苏镇江212003 [2]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001 [3]西藏大学工学院,西藏拉萨850000 [4]哈尔滨工程大学水声技术重点实验室,黑龙江哈尔滨150001 [5]海洋信息获取与安全工信部重点实验室(哈尔滨工程大学),工业和信息化部,黑龙江哈尔滨150001 [6]中国船舶工业系统工程研究院水声对抗技术重点实验室,北京100036

出　　处：《哈尔滨工程大学学报》2020年第7期991-997,共7页Journal of Harbin Engineering University

基　　金：国防重点实验室稳定支持专题(JCKYS2020604SSJS008);水声对抗技术国防科技重点实验室开放基金项目(SSDKKFJJ-2018);54所新技术研究高校合作项目课题;声纳技术重点实验室基金课题(614210902011906)。

摘　　要：为了提高低信噪比水下环境中声呐系统的探测性能,本文提出了一种单矢量水听器组合通道后置自适应增强的线谱检测和自适应抵消残差累积的方位估计方法。研究表明:组合通道时反卷积能够有效抑制不相关噪声;对单矢量水听器组合通道线谱信号进行自适应增强,提高低信噪比条件下目标检测能力;利用自适应抵消的残差积累,获得高分辨的目标方位估计。通过仿真试验验证了所提方法的理论基础,并进行了性能对比和分析;通过湖上试验数据分析,验证了所提方法在实际应用中的有效性。本文所提方法能够有效地提高低信噪比环境中线谱目标的检测能力,与传统CBF、MVDR和MUSIC相比获得了高分辨的目标方位估计结果。In order to improve the detection performance of sonar system in a low Signal to Noise Ratio(SNR)underwater environment,a new method based on a vector hydrophone combined channels post adaptive technique is proposed to detect and estimate azimuth of the target underwater.The adaptive line-spectrum enhancement and adaptive cancellation residual accumulation are correspondingly employed in target detection and azimuth estimation.The research results indicate that Time Reversal Convolution(TRC)can effectively suppress the uncorrelated noise.The ability to detect the line-spectrum target underwater is improved by enhancing the target line-spectrum signal.A high-resolution target azimuth estimation is obtained using the residual accumulation of adaptive cancellation.The theoretical basis of the proposed method is verified by simulation,and the performance comparison and analysis are carried out.The effectiveness of the proposed method in practical application is tested by the experimental data obtained on a lake.The proposed method can effectively improve the detection performance of line-spectrum target in low SNR environment,and lead to high resolution azimuth estimation results compared with CBF,MVDR and MUSIC.

关 键 词：矢量水听器 组合通道 时反卷积 自适应增强 自适应抵消 线谱检测 高分辨 方位估计 

分 类 号：TN911.7[电子电信—通信与信息系统]