基于粒子滤波的扩展目标检测前跟踪算法

A Track-before-Detect Algorithm for Tracking Extended Targets Based on Particle Filter

针对扩展目标跟踪检测问题,把粒子滤波与检测前跟踪算法相结合应用于扩展目标。把目标强度和空间长度引入状态向量,解决粒子滤波易发散的缺点,实现对扩展目标的有效跟踪检测。最后,在对目标有效检测的基础上,对目标强度和空间长度进行估计。仿真表明,该算法能够较好地跟踪和检测扩展目标,并能有效估计目标强度和扩展长度。

Based on track-before-detect algorithm,Particle Filtering（PF） was used to track and detect the extended targets.Target intensity and target length were introduced into the state vector to restrain the divergence of PF and realize effective tracking and detection of extended targets.The target intensity and target length were estimated on the basis of the available detection.Simulations illustrated that the algorithm can track and detect extended targets,and estimate the intensity and length of the targets effectively.