Journal of Xidian University ›› 2022, Vol. 49 ›› Issue (5): 100-108.doi: 10.19665/j.issn1001-2400.2022.05.012

• Information and Communications Engineering • Previous Articles     Next Articles

Scheduling method for multi-sensor cooperative ground target tracking

ZHANG Yunpu(),SHAN Ganlin(),FU Qiang()   

  1. Department of Electronic and Optical Engineering,Army Engineering University,Shijiazhuang 050000,China
  • Received:2021-07-12 Online:2022-10-20 Published:2022-11-17

Abstract:

To achieve accurate ground target tracking in the presence of the Doppler blind zone,a multi-sensor cooperative scheduling method is proposed.First,by analyzing the basic process of sensor scheduling,a basic model including the scheduling action,the target state transition equation,and the sensor measurement equation in the presence of the Doppler blind zone is established.Second,for the move-stop-move characteristics of the ground target,its motion states are divided into two categories of slow stage and fast stage according to its velocity,and the calculation method for the state probability is given.Then,the variable structure interacting multiple-model method is introduced to estimate the target state,and the calculation methods for the estimation likelihood function and the state transition probability are given.Finally,the tracking accuracy is quantified by the posterior Cramér-rao lower bound,and the objective function of the non-myopic scheduling is established with the optimal tracking accuracy as the optimization objective.Simulation results show that the proposed method can lead to the optimal sensor scheduling scheme by predicting the future multi-step scheduling gains,so as to achieve the high-precision sustained tracking accuracy of the target.

Key words: multi-sensor system, sensor scheduling, ground target tracking, doppler blind zone

CLC Number: 

  • TP212