摘要
针对水下体目标与多点源合成回波信号的分辨问题,本文基于体目标与多点源合成回波信号的形成机理差异,表征分析了影响水下目标回波相位形成的关键因素及水下体目标与多点源合成回波相位形成的差异性,基于2类回波信号相位变化率的特征差异,提出并建立了基于相位变化率的体目标回波与多点源合成回波的分辨方法。通过Benchmark基准潜艇缩比模型和多点源合成目标模型的特性仿真和湖上对比测试对2类回波信号的分辨方法进行了验证,仿真和测试数据分析结果表明:通过对比同方位角度范围内的回波相位变化率,可以对体目标回波与多点源合成回波进行分辨,验证了基于相位变化率的水下体目标与多点源合成回波分辨方法的可行性。
To address the echo discrimination problem of underwater bulk targets and multipoint-source synthetic targets,the key factors affecting the formation of underwater target echo phase and the difference of the echo phase formation of underwater bulk target and multipoint source synthetic target were characterized and analyzed based on the differences of their formation mechanism.A discrimination method of bulk target echo and multipoint source synthetic echo was proposed and established in this paper based on the characteristic differences of the phase change rates of the two types of signals.The method of discriminating the two types of echo signals was verified through the characteristic simulation of the benchmark submarine reduction model and the multipoint source synthetic target model,along with the contrast test on the lake.The results of the simulation and test data analysis show that the bulk target echo can be resolved from the multipoint source synthetic echo by comparing the phase change rate of echo in the same azimuth angle range.Furthermore,the feasibility of the echo discrimination method based on the phase change rate of underwater bulk targets and multipoint source synthetic targets is verified.
作者
雍锦涛
莫世奇
陈云飞
王振山
贾兵
李桂娟
张阳
YONG Jintao;MO Shiqi;CHEN Yunfei;WANG Zhenshan;JIA Bing;LI Guijuan;ZHANG Yang(College of Underwater Acoustic Engineering,Harbin Engineering University,Harbin 150001,China;Science and Technology on Underwater Test and Control Laboratory,Dalian 116013,China;School of Information and Communication Engineering,Dalian University of Technology,Dalian 116024,China)
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
北大核心
2024年第3期432-440,共9页
Journal of Harbin Engineering University
基金
国家自然科学基金项目(52271343)。
关键词
体目标
多点源合成目标
模拟回波
相位变化率
分辨方法
特性仿真
实验验证
回波分辨
body target
synthetic target
echo simulation
rate of phase change
discrimination method
characteristic simulation
experimental validation
echo discrimination
