Aiming at particle impoverishment phenomenon caused by particle filtering resampling

a target tracking algorithm for WSNs based on improved resampling particle filtering is presented for the WSNs. The proposed algorithm avoids residual particle resampling problem

thus reduces calculation time; by producing new particles

diversity of particles is increased

so particle impoverishment phenomenon is improved. Simulation experimental results show that the improved resampling particle filtering algorithm improves target tracking precision and reduce tracking error.