基于实孔径成像的水下高速小目标末弹道测量方法
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摘要
在没有合作声信标和水下弹道测量系统配合的条件下,传统的基线定位法难以测量水下高速小目标末弹道。该文提出了一种测量高速小目标末弹道的方法,该方法通过在靶标上安装实孔径声学成像系统,发射双曲调频信号保持系统在目标回波多普勒偏移量较大时的输出幅值稳定,并采用频域宽带信号处理技术修正多普勒偏移造成的目标方位测量误差和抑制混响干扰,经过湖上试验,系统获取了较清晰的声学图像,准确分辨出目标位置,能够较精确地测量高速小目标末弹道。
Without the cooperation of underwater trajectory measurement system, the traditional baseline positioning method is difficult to realize the trajectory measurement of non-cooperative underwater targets.A method for measuring the terminal trajectory of high-speed small target is presented in this paper. By installing a disc-shaped real aperture acoustic imaging system on the target, the output amplitude of the transmitting hyperbolic FM signal can be kept stable when the target echo Doppler offset is large, and the frequency domain broadband beamforming technique is used to suppress noise and reverberation interference.Through lake experiments, the system obtains clear acoustic image, and can measure the terminal trajectory of small target accurately.
Without the cooperation of underwater trajectory measurement system, the traditional baseline positioning method is difficult to realize the trajectory measurement of non-cooperative underwater targets.A method for measuring the terminal trajectory of high-speed small target is presented in this paper. By installing a disc-shaped real aperture acoustic imaging system on the target, the output amplitude of the transmitting hyperbolic FM signal can be kept stable when the target echo Doppler offset is large, and the frequency domain broadband beamforming technique is used to suppress noise and reverberation interference.Through lake experiments, the system obtains clear acoustic image, and can measure the terminal trajectory of small target accurately.
引文
[1]李想.水下高速运动目标轨迹测量技术研究[D].哈尔滨:哈尔滨工程大学,2011.
[2]田坦.声呐技术[M].哈尔滨:哈尔滨工程大学出版社,2016.
[3]李启虎.声呐信号处理引论[M].北京:科学出版社,2006.
[4]陈晓忠.长基线水声跟踪系统抗多途及抗距离模糊研究[D].哈尔滨:哈尔滨工程大学,2005.
[5]勇俊.基于二维成像声纳的水下运动目标定位技术研究[D].哈尔滨:哈尔滨工程大学,2012.
[6]毛卫宁.水下被动定位方法回顾与展望[J].东南大学学报:自然科学版,2001,31(6):129-132.Mao Weining.Retrospect and prospect of underwater passive positioning methods[J].Journal of Southeast University:Natural Science Edition,2001,31(6):129-132.
[7]刘俊.长基线水下导航定位技术研究[D].哈尔滨:哈尔滨工程大学,2007.
[8]赵龙龙.矢量传感器三维末段轨迹测量技术研究[D].哈尔滨:哈尔滨工程大学,2008.
[9]杨娟.水下动目标被动跟踪关键技术研究[D].哈尔滨:哈尔滨工程大学,2007.
[10]杨志权,刘松海,王文学.鱼雷实艇靶末弹道测量算法分析与误差仿真[J].鱼雷技术,2003,11(4):34-38.Yang Zhiquan,Liu Songhai,Wang Wenxue.Algorithm analysis and error simulation of torpedo target-to-end trajectory measurement[J].Torpedo Technology,2003,11(4):34-38.
[11]徐宇明.水下航行器内测系统及数据处理方法研究[D].西安:西北工业大学,2007.
[12]章正宇,周寿桓.水下目标探测中的激光技术[J].西安电子科技大学学报,2001,28(6):797-801.Zhang Zhengyu,Zhou Shouhuan.Laser technology in underwater target detection[J].Journal of Xi’an University of Electronic Science and Technology,2001,28(6):797-801.
[13]何心怡,钱东,王光宇,等.水文条件对鱼雷声自导作用距离的影响[J].鱼雷技术,2007,15(5):33-36.He Xinyi,Qian Dong,Wang Guangyu,et al.Effects of hydrological conditions on acoustic homing range of torpedoes[J].Torpedo Technology,2007,15(5):33-36.
[14]王飞,傅寅锋,唐劲松.圆柱阵主动声纳混响抑制方法研究[J].声学技术,2012,31(4):442-446.Wang Fei,Fu Yinfeng,Tang Jinsong.Study on the method of active sonar reverberation suppression with cylindrical array[J].Technical Acoustics,2012,31(4):442-446.
[2]田坦.声呐技术[M].哈尔滨:哈尔滨工程大学出版社,2016.
[3]李启虎.声呐信号处理引论[M].北京:科学出版社,2006.
[4]陈晓忠.长基线水声跟踪系统抗多途及抗距离模糊研究[D].哈尔滨:哈尔滨工程大学,2005.
[5]勇俊.基于二维成像声纳的水下运动目标定位技术研究[D].哈尔滨:哈尔滨工程大学,2012.
[6]毛卫宁.水下被动定位方法回顾与展望[J].东南大学学报:自然科学版,2001,31(6):129-132.Mao Weining.Retrospect and prospect of underwater passive positioning methods[J].Journal of Southeast University:Natural Science Edition,2001,31(6):129-132.
[7]刘俊.长基线水下导航定位技术研究[D].哈尔滨:哈尔滨工程大学,2007.
[8]赵龙龙.矢量传感器三维末段轨迹测量技术研究[D].哈尔滨:哈尔滨工程大学,2008.
[9]杨娟.水下动目标被动跟踪关键技术研究[D].哈尔滨:哈尔滨工程大学,2007.
[10]杨志权,刘松海,王文学.鱼雷实艇靶末弹道测量算法分析与误差仿真[J].鱼雷技术,2003,11(4):34-38.Yang Zhiquan,Liu Songhai,Wang Wenxue.Algorithm analysis and error simulation of torpedo target-to-end trajectory measurement[J].Torpedo Technology,2003,11(4):34-38.
[11]徐宇明.水下航行器内测系统及数据处理方法研究[D].西安:西北工业大学,2007.
[12]章正宇,周寿桓.水下目标探测中的激光技术[J].西安电子科技大学学报,2001,28(6):797-801.Zhang Zhengyu,Zhou Shouhuan.Laser technology in underwater target detection[J].Journal of Xi’an University of Electronic Science and Technology,2001,28(6):797-801.
[13]何心怡,钱东,王光宇,等.水文条件对鱼雷声自导作用距离的影响[J].鱼雷技术,2007,15(5):33-36.He Xinyi,Qian Dong,Wang Guangyu,et al.Effects of hydrological conditions on acoustic homing range of torpedoes[J].Torpedo Technology,2007,15(5):33-36.
[14]王飞,傅寅锋,唐劲松.圆柱阵主动声纳混响抑制方法研究[J].声学技术,2012,31(4):442-446.Wang Fei,Fu Yinfeng,Tang Jinsong.Study on the method of active sonar reverberation suppression with cylindrical array[J].Technical Acoustics,2012,31(4):442-446.