摘要
当物体靠近双基地声纳基线时,由于直达波的干扰,声纳系统存在检测盲区,因此提出基于巴宾奈特原理的双基地前向探测方法,其原理是在盲区对前向散射信号进行长时间的累计检测,实现双基地盲区检测。理论上推导出的水下前向散射目标强度的计算公式与旋转椭球体目标强度的经验公式一致。仿真表明前向散射信号强度呈眼状分布,讨论了利用对前向散射信号进行时间累计探测低速运动目标的可行性。
For the problem that the bistatic sonar can not detect the target near the baseline because of the interference of direct wave, a method based on the Babinefs principle is proposed for bistatic sonar detection. The basic idea is that the forward scattering signal is accumulated and detected for a long time in the blind zone of bistatic sonar. The result shows that the target strength formula derived in this paper is consistent with that of the rotational ellipsoid. The simulation results show that the forward scattering signal strength distribution looks like an eye. It is feasible to detect the slowly moving target in the blind zone with the proposed method.
出处
《探测与控制学报》
CSCD
北大核心
2010年第2期21-25,29,共6页
Journal of Detection & Control
基金
国家自然科学基金项目资助(10774119)
陕西省自然科学基础研究计划(SJ08F07)
声场声信息国家重点实验室基金
关键词
巴宾奈特原理
双基地声纳
盲区
声呐方程
前向散射
Babinefs principle
bistatic sonar
blind zone
sonar equation
forward scattering
作者简介
雷波（1982-），男，陕西高陵人，博士研究生，研究方向：跨界面声传播建模和声检测。E-mail：le．ibo．thuder@gmail．com。
