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第 38 卷 第 3 期 Vol. 38, No. 3
2019 年 5 月 Journal of Applied Acoustics May, 2019

⋄ 研究报告 ⋄

基于实孔径成像的水下高速小目标末弹道

测量方法

张思宇 1† 何心怡 1 王 磊 2 祝 琳 1

(1 海军研究院 北京 100161)
(2 中国科学院声学研究所 北京 100190)

摘要 在没有合作声信标和水下弹道测量系统配合的条件下，传统的基线定位法难以测量水下高速小目标末
弹道。该文提出了一种测量高速小目标末弹道的方法，该方法通过在靶标上安装实孔径声学成像系统，发射双
曲调频信号保持系统在目标回波多普勒偏移量较大时的输出幅值稳定，并采用频域宽带信号处理技术修正多
普勒偏移造成的目标方位测量误差和抑制混响干扰，经过湖上试验，系统获取了较清晰的声学图像，准确分辨
出目标位置，能够较精确地测量高速小目标末弹道。
关键词 声学成像，末弹道，非合作目标
中图法分类号: TJ630; TJ410.6 文献标识码: A 文章编号: 1000-310X(2019)03-0452-06
DOI: 10.11684/j.issn.1000-310X.2019.03.024

A real aperture acoustic imaging system based on circular array for measuring

the terminal trajectory of high speed small targets

ZHANG Siyu 1 HE Xinyi 1 WANG Lei 2 ZHU Lin 1

(1 Naval Research Academy, Beijing 100161, China)
(2 Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China)
Abstract Without the cooperation of underwater trajectory measurement system, the traditional baseline
positioning method is difficult to realize the trajectory measurement of non-cooperative underwater targets.
A method for measuring the terminal trajectory of high-speed small target is presented in this paper. By
installing a disc-shaped real aperture acoustic imaging system on the target, the output amplitude of the
transmitting hyperbolic FM signal can be kept stable when the target echo Doppler offset is large, and the
frequency domain broadband beamforming technique is used to suppress noise and reverberation interference.
Through lake experiments, the system obtains clear acoustic image, and can measure the terminal trajectory
of small target accurately.
Key words Sonar imaging, Final ballistics, Non-cooperative targets

2018-09-11 收稿; 2018-12-31 定稿
作者简介: 张思宇 (1992- ), 男, 江苏射阳人, 硕士研究生, 研究方向: 鱼雷自导及水下信号与信息处理。
† 通讯作者 E-mail: 2446005738@qq.com