机动目标在三维Jerk模型下的无源跟踪  

Passive maneuvering target tracking using Jerk model

作　　者：杨丽[1] 田增山[1] 

机构地区：[1]重庆邮电大学移动通信技术重点实验室,重庆400065

出　　处：《数字通信》2009年第3期60-62,共3页Digital Communications and Networks

摘　　要：针对当前运动目标跟踪模型多数限制在两维平面内或者是假设条件下的三维空间的特殊平面内,为了对空中目标,特别是低空目标无源跟踪,提出利用jerk模型对空中目标建模的思想,并推导出了离散的状态方程,最后以距离、方向角和俯仰角为观测量,建立观测方程。通过计算机仿真,比较跟踪轨迹和真实轨迹,可以看出jerk模型适合于空中目标无源跟踪。Many current models of the motion targets are restricted in the two-dimensional plane or in the special three-dimensional space plane. In order to track aerial targets, particularly low-altitude targets, this paper proposes to use Jerk model to describe the motion of the aerial targets. A discrete equation of state was derived, and using range, azimuth and elevation as measurement, the observation equation was established. Through computer simulation, the estimative trajectory was compared with true trajectory, and the result show that the Jerk model can be used in aerial targets passive tracking.

关 键 词：JERK模型 空中目标 无源定位 定位跟踪 

分 类 号：TN953[电子电信—信号与信息处理]