多传感器协同地面目标跟踪的调度方法

doi:10.19665/j.issn1001-2400.2022.05.012

Abstract

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

ZHANG Yunpu,SHAN Ganlin,FU Qiang. Scheduling method for multi-sensor cooperative ground target tracking[J].Journal of Xidian University, 2022, 49(5): 100-108.

Figures/Tables 7

参数	传感器1	传感器2	传感器3	传感器4	传感器5	传感器6	传感器7	传感器8
位置/m	(-500,100)	(-250,1 000)	(200,500)	(500,1 000)	(1 000,500)	(750,0)	(500,-500)	(0,-500)
检测概率/%	93	93	97	90	95	98	98	95
斜距离标准差/m	10	15	8	15	10	6	10	10
方位角标准差/mrad	10	5	5	8	5	3	5	5
径向速度标准差/(m· $s - 1$ )	5	3	3	6	3	3	3	3

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H	位置RTAMSE/m	速度RTAMSE/(m·s^-1)
1	15.28	4.28
2	14.13	3.93
3	13.14	3.01
4	13.67	3.62
5	14.64	4.04

方法	位置RTAMSE/m	速度RTAMSE/(m·s^-1)
文中方法	13.14	3.01
方法1	27.71	5.03
方法2	18.40	4.53
方法3	35.73	5.72

Scheduling method for multi-sensor cooperative ground target tracking

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