一种基于互谱法的鱼雷末弹道定位方法
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摘要
为提高攻潜鱼雷末弹道测量系统的被动定位精度,文中提出了一种基于短时互谱法的攻潜鱼雷末弹道被动定位方法,介绍了运用该方法建立的测量系统,给出了目标的被动定位算法,在测量区域内对测角精度、噪声影响以及典型轨迹进行仿真分析。仿真结果表明,在信噪比为10 dB的条件下,采用文中的定位方法,当目标位于距测量子阵80 m,角度为±40°区域内的弧线上,测向精度提高0.15°,典型航迹绝对误差普遍减小0.4 m。文中所做研究可为考核鱼雷效能评估提供参考。
A passive location method based on short-time cross spectrum method is proposed to improve the passive location accuracy of a torpedo terminal trajectory measurement system. The measurement system established according to this method is introduced, the passive location algorithm of a target is given. The angle measurement accuracy, the noise influence and the typical trajectory are simulated and analyzed in the measuring area. Simulation results show that for the signal-to-noise ratio(SNR) of 10 dB, when the target is on the arc of an ±40° region and the distance between the arc and the measuring subarray is 80 m, the direction finding accuracy of the proposed location method is improved by0.15°, and the absolute error of typical trajectory is generally reduced by 0.4 m. This research may provide a reference for evaluating torpedo effectiveness.
A passive location method based on short-time cross spectrum method is proposed to improve the passive location accuracy of a torpedo terminal trajectory measurement system. The measurement system established according to this method is introduced, the passive location algorithm of a target is given. The angle measurement accuracy, the noise influence and the typical trajectory are simulated and analyzed in the measuring area. Simulation results show that for the signal-to-noise ratio(SNR) of 10 dB, when the target is on the arc of an ±40° region and the distance between the arc and the measuring subarray is 80 m, the direction finding accuracy of the proposed location method is improved by0.15°, and the absolute error of typical trajectory is generally reduced by 0.4 m. This research may provide a reference for evaluating torpedo effectiveness.
引文
[1]刘松海,孙向前,岳剑平.智能鱼雷攻潜部位及攻击角测量方法与误差分析[J].舰船科学技术,2012,34(4):79-88.Liu Song-hai,Sun Xiang-qian,Yue Jian-ping.The Measuring Method and Error Analysis of Intelligent Torpedo’s Attack Point and Attack Angle of Submarine Target[J].Ship Science And Technology,2012,34(4):79-88.
[2]李伟,徐文焱,邓鹏.反潜导弹空中末弹道及入水控制问题研究[J].舰船科学技术,2012,34(12):82-87.Li Wei,Xu Wen-yan,Deng Peng.At the End of the Air Antisubmarine Missile Trajectory and the Control of Water[J].Ship Science and Technology,2012,34(12):82-87.
[3]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.
[4]陈春玉.尺度目标识别中的若干技术问题[J].鱼雷技术,2003,11(3):9-13.
[5]马国强,徐德民,王新晓.基于目标方位走向的水下目标尺度识别技术研究仿真[J].舰船科学技术,2004,26(3):39-42.Ma Guo-qiang,Xu De-min,Wang Xin-xiao.A Study of Simulation for Underwater Target Scale Identification with the Technique of Target Azimuth Tendency[J].Ship Science and Technology,2004,26(3):39-42.
[6]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):36-40,47.Li Jin,Wang Xiao-qing,Chen Wei-dong.Research on Cross Spectrum Direction-finding with Splitting Beam Based on Conventional Beam-forming[J].Radio Engineering,2016,46(2):36-40,47.
[7]朱峰,刘松海,苏军.一种火箭助飞鱼雷攻潜末弹道被动定位方法[J].水下无人系统学报,2018,26(1):85-88.Zhu Feng,Liu Song-hai,Su Jun.A Passive Positioning Method of Attacking Submarine Terminal Trajectory of Rocket-assisted Torpedo[J].Journal of Unmanned Undersea Systems,2018,26(1):85-88.
[8]刘朝晖,付战平,王明洲.基于方位走向法和互谱法的水中目标识别[J].兵工学报,2006,27(5):932-935.Liu Zhao-hui,Fu Zhan-ping,Wang Ming-zhou.Underwater Target Identification Based on the Methods of Bearing and Cross-spectrum[J].Acta ArmamentarII,2006,27(5):932-935.
[9]李启虎.进入21世纪的声纳技术[J].信号处理,2012,28(1):1-11.Li Qi-hu.Sonar Technology in Entering 21 Century[J].Signal Processing,2012,28(1):1-11.
[10]易红,周殿宝,陈春玉.声自导鱼雷进行尺度目标识别的试验方法研究[J].鱼雷技术,2005,13(4):50-53.Yi Hong,Zhou Dian-bao,Chen Chun-yu.A Test Method for Scaling Target Recognition of Acoustic Homing Torpedo[J].Torpedo Technology,2005,13(4):50-53.
[2]李伟,徐文焱,邓鹏.反潜导弹空中末弹道及入水控制问题研究[J].舰船科学技术,2012,34(12):82-87.Li Wei,Xu Wen-yan,Deng Peng.At the End of the Air Antisubmarine Missile Trajectory and the Control of Water[J].Ship Science and Technology,2012,34(12):82-87.
[3]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.
[4]陈春玉.尺度目标识别中的若干技术问题[J].鱼雷技术,2003,11(3):9-13.
[5]马国强,徐德民,王新晓.基于目标方位走向的水下目标尺度识别技术研究仿真[J].舰船科学技术,2004,26(3):39-42.Ma Guo-qiang,Xu De-min,Wang Xin-xiao.A Study of Simulation for Underwater Target Scale Identification with the Technique of Target Azimuth Tendency[J].Ship Science and Technology,2004,26(3):39-42.
[6]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):36-40,47.Li Jin,Wang Xiao-qing,Chen Wei-dong.Research on Cross Spectrum Direction-finding with Splitting Beam Based on Conventional Beam-forming[J].Radio Engineering,2016,46(2):36-40,47.
[7]朱峰,刘松海,苏军.一种火箭助飞鱼雷攻潜末弹道被动定位方法[J].水下无人系统学报,2018,26(1):85-88.Zhu Feng,Liu Song-hai,Su Jun.A Passive Positioning Method of Attacking Submarine Terminal Trajectory of Rocket-assisted Torpedo[J].Journal of Unmanned Undersea Systems,2018,26(1):85-88.
[8]刘朝晖,付战平,王明洲.基于方位走向法和互谱法的水中目标识别[J].兵工学报,2006,27(5):932-935.Liu Zhao-hui,Fu Zhan-ping,Wang Ming-zhou.Underwater Target Identification Based on the Methods of Bearing and Cross-spectrum[J].Acta ArmamentarII,2006,27(5):932-935.
[9]李启虎.进入21世纪的声纳技术[J].信号处理,2012,28(1):1-11.Li Qi-hu.Sonar Technology in Entering 21 Century[J].Signal Processing,2012,28(1):1-11.
[10]易红,周殿宝,陈春玉.声自导鱼雷进行尺度目标识别的试验方法研究[J].鱼雷技术,2005,13(4):50-53.Yi Hong,Zhou Dian-bao,Chen Chun-yu.A Test Method for Scaling Target Recognition of Acoustic Homing Torpedo[J].Torpedo Technology,2005,13(4):50-53.