摘要
面向现代海战场智能化、无人化、网络化的发展趋势,UUV承担着重要任务和使命。由于UUV工作环境复杂、干扰因素较多,传统回波信号仿真中自由场假设将不再适用。针对UUV等高动态目标实时探测问题,探讨了复杂海洋环境下的目标回波建模方法,从信号级的角度对浅海多基地声纳主动探测接收信号进行计算机仿真,建立了要素完备、高效可靠的回波模拟信号,模拟了包括环境噪声、海洋混响、信道多途、目标亮点模型、多普勒效应等多个影响因素,可避免数值积分方法无法实时预报的缺点和传统自由场假设无法刻画复杂海洋环境的缺点,为复杂海战场下UUV的远距离探测提供一定的参考。
Facing the development trend of intelligent, unmanned, and networked modern naval battlefields, UUVs undertake important tasks and missions. Due to the complex interference factors in the working environment of UUVs, the free field hypothesis in traditional echo signal simulation is no longer applicable. Aiming at the real-time detection of highly dynamic targets such as UUVs, a method for modeling target echoes in complex marine environments is discussed. From the perspective of signal, the computer simulation is carried out on the active detection and reception signal of shallow sea multi-base sonar, which establishes the echo simulation signal with complete elements, high efficiency, and reliability is established. Specifically, the influencing factors such as environmental noise, ocean reverberation, channel multipath, target highlight model, and Doppler effect are simulated, which can avoid the shortcomings of numerical integration method that cannot predict real-time and traditional free field hypothesis that cannot describe complex marine environments. It can provide a reference for longdistance detection of UUVs on complex naval battlefields.
作者
赵显文
陈洲
王正伟
刘志刚
胡鹏鹏
王梦馨
ZHAO Xianwen;CHEN Zhou;WANG Zhengwei;LIU Zhigang;HU Pengpeng;WANG Mengxin(Sichuan Jiuzhou Electric Group Co.,Ltd.,Chengdu 621000,China)
出处
《移动通信》
2022年第7期82-87,共6页
Mobile Communications
基金
国防科技创新特区快响课题“水下高动态小目标智能仿生探测技术”(21-163-00-TS-018-013-01)。
