摘要
为了改善低信噪比条件下弱目标的检测实时性与跟踪精度,提出了基于Cubature粒子滤波检测前跟踪方法。该方法直接使用原始传感器数据,使用Cubature卡尔曼滤波构造粒子滤波的重要性建议函数来估计目标的运动状态,充分利用了系统的状态模型以及加入了新的观测信息。仿真实验表明,该算法对低信噪比条件下雷达弱目标具有良好的实时检测和跟踪性能。
An improved track-before-detect(TBD) algorithm based on the Cubature particle filter is proposed for weak target tracking in low signal to noise radio(SNR) environment.The Cubature kalman filter is used to generate the improtant density function of particle filter,which the state model and the new observation information is used abundantly by.The simulation results demonstrate that the improved algorithm can provide stable and reliable detection as well as accurate tracking.
出处
《火力与指挥控制》
CSCD
北大核心
2013年第5期62-65,共4页
Fire Control & Command Control
基金
武警基础基金资助项目(WJY201114)