摘要
超声速运动目标在空气中飞行时产生激波，本文利用激波到达时间，提出了一种基于波前方向矢量的算法，确定目标的速度和位置。最后，通过对三站均匀圆阵的估计精度的分析计算，讨论了该算法的有效性．
A supersonic object generates a shock wave during its flight in the air.Utilizingthe arrival time of the shock wave, we present an algorithm based on the directional vec-tor of the wavefront to determine the speed and location of the object. We tested theeffectiveness of the algorithm by computing the estimation accuracy of a 3-station evenly-distributed circular array.
出处
《应用声学》
CSCD
北大核心
1998年第5期40-43,10,共5页
Journal of Applied Acoustics
关键词
超声速运动目标
声探测
激振
被动定位
算法
Supersonic object, Acoustic detection, Shock wave, Passive localization
