In this paper, we consider the problem of irregular shapes tracking for multiple extended targets by introducing the Gaussian surface matrix（GSM） into the framework of the random finite set（RFS） theory. The Gaussi...In this paper, we consider the problem of irregular shapes tracking for multiple extended targets by introducing the Gaussian surface matrix（GSM） into the framework of the random finite set（RFS） theory. The Gaussian surface function is constructed first by the measurements, and it is used to define the GSM via a mapping function. We then integrate the GSM with the probability hypothesis density（PHD） filter, the Bayesian recursion formulas of GSM-PHD are derived and the Gaussian mixture implementation is employed to obtain the closed-form solutions. Moreover, the estimated shapes are designed to guide the measurement set sub-partition, which can cope with the problem of the spatially close target tracking. Simulation results show that the proposed algorithm can effectively estimate irregular target shapes and exhibit good robustness in cross extended target tracking.展开更多
为有效抑制电磁损伤,采用TLM(Transmission Line Matrix)算法研究了高空核电磁脉冲作用下线缆孔洞对电子设备屏蔽效能的影响。根据回波强度与反射面形状有关的现象,提出采用不规则屏蔽腔体对抗电磁毁伤的方法,通过增强回波减少进入屏蔽...为有效抑制电磁损伤,采用TLM(Transmission Line Matrix)算法研究了高空核电磁脉冲作用下线缆孔洞对电子设备屏蔽效能的影响。根据回波强度与反射面形状有关的现象,提出采用不规则屏蔽腔体对抗电磁毁伤的方法,通过增强回波减少进入屏蔽腔体内部的电磁波,并在非屏蔽的车辆中进行验证。仿真结果表明,不规则腔体的电场屏蔽效能高于圆柱形和矩形屏蔽腔体,且谐振较小,验证了该屏蔽腔设计的合理性和有效性,从而为车辆内部电控系统的防护提供了理论参考。展开更多
基金supported by the National Natural Science Foundation of China(6130501761304264+1 种基金61402203)the Natural Science Foundation of Jiangsu Province(BK20130154)
文摘In this paper, we consider the problem of irregular shapes tracking for multiple extended targets by introducing the Gaussian surface matrix（GSM） into the framework of the random finite set（RFS） theory. The Gaussian surface function is constructed first by the measurements, and it is used to define the GSM via a mapping function. We then integrate the GSM with the probability hypothesis density（PHD） filter, the Bayesian recursion formulas of GSM-PHD are derived and the Gaussian mixture implementation is employed to obtain the closed-form solutions. Moreover, the estimated shapes are designed to guide the measurement set sub-partition, which can cope with the problem of the spatially close target tracking. Simulation results show that the proposed algorithm can effectively estimate irregular target shapes and exhibit good robustness in cross extended target tracking.
文摘为有效抑制电磁损伤,采用TLM(Transmission Line Matrix)算法研究了高空核电磁脉冲作用下线缆孔洞对电子设备屏蔽效能的影响。根据回波强度与反射面形状有关的现象,提出采用不规则屏蔽腔体对抗电磁毁伤的方法,通过增强回波减少进入屏蔽腔体内部的电磁波,并在非屏蔽的车辆中进行验证。仿真结果表明,不规则腔体的电场屏蔽效能高于圆柱形和矩形屏蔽腔体,且谐振较小,验证了该屏蔽腔设计的合理性和有效性,从而为车辆内部电控系统的防护提供了理论参考。
