摘要
针对实际情况下机载预警雷达虚警多、易掉点和俯仰角误差大从而导致航迹起始困难的问题,在WGS-84坐标系下建立载机和目标运动模型,根据目标径向速度的求解公式,推导了相邻周期内目标径向速度的差值波门,提出一种引入径向速度差值波门的航迹起始算法。仿真表明,该算法在杂波环境下能有效起始航迹,相对于传统的逻辑法,提高了正确航迹起始率,降低运算量。
It is difficult for an airborne early warning radar to make track initiation due to so many false alarms, large elevation error and easy detection losing. To solve the problems, the airplane and target movement models were built up based on WGS-84 coordinate system. According to the formula of radial velocity, adjacent cycle radial velocity track gate was deduced and a track initiation algorithm based on the gate was given. The results of simulation demonstrated that： compared with the traditional logic-based method, the method can reduce computation cost and increase the accuracy rate of track initiation in dense clutter.
出处
《电光与控制》
北大核心
2013年第4期22-26,共5页
Electronics Optics & Control
关键词
机载预警雷达
径向速度
航迹起始
波门
airborne early warning radar
radial velocity
track initiation
track gate
