摘要
采用纯方位跟踪(BOT)技术确定运动声源的位置及速度时,需要自身至少机动一次,这给观测带来了一定的限制。而处于舰船噪声低频区的线谱具有很高的强度和稳定度,这一事实为估计目标运动要素提供了新的思路。综合考虑了目标方位和线谱多普勒频移信息,给出了形式简洁,易于实现的滤波公式,消除了机动限制。计算机模拟及海上试验数据表明该方法能够得到稳定有效的解。
Estimating position and velocity of a moving source requires at least an ownship manoeuver when performing Bearing Only Tracking(BOT),which brings restrictions on observation.But the line located in the low frequency of ship noise spectrum has high intensity and stability.This fact provides new idea in estimating target motion parameters.In this paper we consider not only the bearings but also the Doppler shift.A concise and easy-implemented formula of filtering is given,which eliminates the restriction above.Computer simulations and the practical processed trial data have shown that this approcach can give stable and valid result.
出处
《火力与指挥控制》
CSCD
北大核心
2004年第3期74-76,共3页
Fire Control & Command Control
基金
军队科研基金资助项目
关键词
目标运动分析
多普勒频移
被动定位
target motion analysis,doppler shift,passive localization
