哈尔滨工程大学学报2024，Vol.45Issue(3)：432-440,9.DOI:10.11990/jheu.202305018
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
摘要
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
雍锦涛,莫世奇,陈云飞,王振山,贾兵,李桂娟,张阳..基于相位变化率的体目标与点源合成目标回波分辨[J].哈尔滨工程大学学报,2024,45(3):432-440,9.基金项目
国家自然科学基金项目(52271343). （52271343）
