一种改进的多普勒盲区条件下的航迹撤销准则
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摘要
针对机载预警雷达固有的多普勒盲区造成目标点迹连续丢失问题,用传统基于航迹似然比和序列概率比检验(TLR-SPRT)撤销准则处理容易引起航迹中断和频繁起批.为此提出了一种多普勒盲区条件下的改进航迹撤销准则.该准则将多普勒盲区和检测概率小于1均作为雷达无量测值的原因,并利用多普勒盲区发生的概率与检测概率联合推导出新的目标航迹质量分数增量.仿真结果表明,与传统TLR-SPRT撤销准则相比,改进航迹撤销准则在多普勒盲区条件下可明显降低航迹中断概率,较好地保持了目标航迹连续性.
The inherent Doppler blind zone(DBZ) of airborne early warning radar brings about continuous loss of target trace, and a traditional track deletion criterion based on track likelihood ratio and sequence probability ratio test(TLR-SPRT) is liable to interruption and frequent batch initiation of target track. To solve the problem above, this paper proposes an improved track deletion criterion for DBZ. In the new criterion, the DBZ and detection probability below 1 are both viewed as the reason for radar measurement loss, and the incidence probability of DBZ and detection probability are jointly used to deduce new increment of track quality score. The simulation results show that compared with the traditional TLR-SPRT deletion criterion, the improved track deletion criterion significantly reduces the probability of track interruption under the condition of DBZ, which maintains target track continuity well.
The inherent Doppler blind zone(DBZ) of airborne early warning radar brings about continuous loss of target trace, and a traditional track deletion criterion based on track likelihood ratio and sequence probability ratio test(TLR-SPRT) is liable to interruption and frequent batch initiation of target track. To solve the problem above, this paper proposes an improved track deletion criterion for DBZ. In the new criterion, the DBZ and detection probability below 1 are both viewed as the reason for radar measurement loss, and the incidence probability of DBZ and detection probability are jointly used to deduce new increment of track quality score. The simulation results show that compared with the traditional TLR-SPRT deletion criterion, the improved track deletion criterion significantly reduces the probability of track interruption under the condition of DBZ, which maintains target track continuity well.
引文
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[11]李志成,孟宏峰,王东江.基于IR方位信息的多普勒盲区跟踪方法研究[J].电子测量技术,2016,39(2):51-55.
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[13]魏立兴,孙合敏,吴卫华,等.多普勒盲区下基于GM-CB-MeMBer的多目标跟踪算法[J].雷达科学与技术,201816(5):559-566.
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[2]王国师,李强,贺玲,等.某型机载预警雷达盲区计算模型研究[J].雷达科学与技术,2010,8(6):491-498.
[3]戴瑜,汪先超,汤子跃,等.针对重点任务航线保障的预警机航线规划[J].火力与指挥控制,2018,43(4):62-65.
[4]MERTENS M,KIRUBARAJAN T,KOCH W.Doppler blind zone analysis for ground target tracking with bistatic airborne GMTI radar[C]//Proceedings of International Conference on Information Fusion.IEEE,2012:2331-2338.
[5]HERNANDEZ M,BENAVOLI A,GRAZIANO A,et al.Performace measures and MHT for tracking move-stop-move targets with MTI sensors[J].IEEE Trans.on Aerospace and Electronic Systems,2011,47(2):996-1025.
[6]ZHANG Shuo,BAR-SHALOM Y.Tracking move-stopmove target with state-dependent mode transition probabilities[J].IEEE Trans.on Aerospace and Electronic Systems,2011,47(3):2037-2054.
[7]韩伟,汤子跃,朱振波.一种多普勒盲区条件下的多假设运动模型目标跟踪方法[J].电子与信息学报,2013,35(3):516-523.
[8]韩伟,汤子跃,朱振波.利用ESM方位信息的多普勒盲区目标跟踪方法[J].系统工程与电子技术,2013,35(8):1650-1656.
[9]韩伟,汤子跃,朱振波.多普勒盲区条件下的改进粒子滤波跟踪算法[J].宇航学报,2013,34(3):417-425.
[10]付莹,汤子跃,孙永健.多普勒盲区条件下空地预警雷达多目标协同跟踪方法[J].红外与激光工程,2014,43(7):2379-2386.
[11]李志成,孟宏峰,王东江.基于IR方位信息的多普勒盲区跟踪方法研究[J].电子测量技术,2016,39(2):51-55.
[12]尉强,刘忠.多普勒盲区下基于GM-PHD的雷达多目标跟踪算法[J].雷达学报,2017,6(1):34-42.
[13]魏立兴,孙合敏,吴卫华,等.多普勒盲区下基于GM-CB-MeMBer的多目标跟踪算法[J].雷达科学与技术,201816(5):559-566.
[14]何友,修建娟,关欣,等.雷达数据处理及应用[M].2版.北京:电子工业出版社,2009:120-121.
[15]LIN L,BAR-SHALOM Y,KIRUBARAJA T.New assignment-based data association for tracking move-stop-move targets[J].IEEE Trans.on Aerospace and Electronic Systems,2004,40(2):714-725.