基于相位变化率的体目标与点源合成目标回波分辨
Echo discrimination between the bulk target and the point source synthetic target based on phase change rate
雍锦涛 1莫世奇 2陈云飞 3王振山 4贾兵 4李桂娟 4张阳4
作者信息
- 1. 哈尔滨工程大学 水声工程学院,黑龙江 哈尔滨 150001;水下测控技术重点实验室,辽宁 大连 116013
- 2. 哈尔滨工程大学 水声工程学院,黑龙江 哈尔滨 150001
- 3. 大连理工大学 信息与通信工程学院,辽宁 大连 116024
- 4. 水下测控技术重点实验室,辽宁 大连 116013
- 折叠
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.
Abstract
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 synthet-ic 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.
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Key words
body target/synthetic target/echo simulation/rate of phase change/discrimination method/character-istic simulation/experimental validation/echo discrimination引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
维普
万方数据