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Evidence fusion procedure based on hybrid DSm model

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Journal of Systems Engineering and Electronics 2014年第6期25卷 959-967页

作者： Hongfei Li Hongbin Jin kangsheng tian Air Force Early Warning Academy

Dezert-Smarandache（DSm） theory, a new information fusion theory, is widely applied in image processing, multiple targets tracking identification, and other areas for its excellent processing ability of imperfect information. However, earlier research on DSm theory mainly focused on one sort of questions. An evidence fusion procedure is proposed based on the hybrid DSm model to compensate for a lack of research on the entire information procedure of DSm theory. This paper analyzes the evidence fusion procedure, as well as correlative node input and output information. Key steps and detailed procedures of evidence fusion are also discussed. Finally, an experiment illustrates the efficiency of the proposed evidence fusion procedure.

关键词： Dezert-Smarandache(DSm) theory evidence fusion procedure hybrid DSm model information fusion

Sensor management based on fisher information gain

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Journal of Systems Engineering and Electronics 2006年第3期17卷 531-534页

作者： tian kangsheng Zhu Guangxi Dept. of Telecommunication Engineering Huazhong Univ. of Science & TechnologyWuhan 430074 P. P. China Dept. of Command Automation Engineering Airforce Radar Academy Wuhan 430019 P. R. China

Multi-sensor system is becoming increasingly important in a variety of military and civilian applications. In general, single sensor system can only provide partial information about environment while multi-sensor system provides a synergistic effect, which improves the quality and availability of information. Data fusion techniques can effectively combine this environmental information from similar and/or dissimilar sensors. Sensor management, aiming at improving data fusion performance by controlling sensor behavior, plays an important role in a data fusion process. This paper presents a method using fisher information gain based sensor effectiveness metric for sensor assignment in multi-sensor and multi-target tracking applications. The fisher information gain is computed for every sensor-target pairing on each scan. The advantage for this metric over other ones is that the fisher information gain for the target obtained by multi-sensors is equal to the sum of ones obtained by the individual sensor, so standard transportation problem formulation can be used to solve this problem without importing the concept of pseudo sensor. The simulation results show the effectiveness of the method.

关键词： data fusion sensor management fisher information gain linear programming.

Interval type-2 fuzzy logic based radar task priority assignment method for detecting hypersonic-glide vehicles

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Frontiers of Information Technology & Electronic Engineering 2022年第3期23卷 488-501页

作者： Fanqing MENG kangsheng tian Department of Graduates Early Warning AcademyWuhan 430019China No.4 Department Early Warning AcademyWuhan 430019China

A radar task priority assignment method based on interval type-2 fuzzy logic system(IT2 FLS)was designed to solve the problem of resource management for phased-array radar to detect hypersonic-glide vehicles(HGVs).The mathematical model of the radar task and the motion and detection models of HGVs are described in *** target threat of an HGV is divided into maneuver,speed,azimuth,and distance *** the radar task priority assignment method based on IT2 FLS,the maneuver factor,speed,azimuth difference,distance,and initial priority are input *** radar task priority is the output *** reduce the number of fuzzy rules and avoid rule explosion,an IT2 FLS with a hierarchical structure was ***,the feasibility of the task priority assignment method was verified by *** results showed that the method based on IT2 FLS has a higher precise tracking rate,mean initial priority,and target threat degree,and a shorter offset time.

关键词： Hypersonic-glide vehicle(HGV) Phased-array radar Interval type-2 fuzzy logic system(IT2FLS) Priority assignment

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基于Bayes弹道导弹主动段融合跟踪算法

红外与激光工程 2013年第5期42卷 1372-1381页

作者：张峰田康生空军雷达学院研究生管理大队23队湖北武汉430019 空军雷达学院4系湖北武汉430019

弹道导弹主动段拦截中对导弹跟踪精度要求很高,如何将多种主动段探测装备得到的数据进行融合得到更加精确的数据是当前亟待解决的难题。针对此问题,文中研究了导弹预警卫星与雷达融合跟踪,提出了一种基于Bayes理论的弹道导弹主动段融合... 详细信息

弹道导弹主动段拦截中对导弹跟踪精度要求很高,如何将多种主动段探测装备得到的数据进行融合得到更加精确的数据是当前亟待解决的难题。针对此问题,文中研究了导弹预警卫星与雷达融合跟踪,提出了一种基于Bayes理论的弹道导弹主动段融合跟踪算法。该算法分别建立了导弹预警卫星和雷达对主动段探测模型和跟踪模型,应用POFACETS软件仿真了一种类型弹道导弹,并将其获得的导弹RCS数据应用到算法中,提高了算法的准确性。仿真实验表明,该融合跟踪算法可以获得比多个传感器算术平均值更精确的结果,具有较高的可靠性。

关键词：弹道导弹主动段拦截 Bayes理论融合跟踪

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预警卫星对弹道导弹主动段状态估计算法

红外与激光工程 2013年第7期42卷 1912-1922页

作者：张峰田康生空军预警学院研究生管理大队23队湖北武汉430019 空军预警学院4系湖北武汉430019

主动段运动状态估计是导弹防御中重要内容,估计得到的状态及其协方差信息可用来引导地基雷达截获目标。在预警卫星观测背景下,该问题是非线性最小二乘求解问题。建立了基于主动段净加速度模板的运动模型和预警卫星测量模型,针对预警卫... 详细信息

主动段运动状态估计是导弹防御中重要内容,估计得到的状态及其协方差信息可用来引导地基雷达截获目标。在预警卫星观测背景下,该问题是非线性最小二乘求解问题。建立了基于主动段净加速度模板的运动模型和预警卫星测量模型,针对预警卫星对弹道导弹主动段观测弱、先验信息掌握少问题,提出了基于Levenberg-Marquardt算法的最大似然(ML)估计方法来得到主动段状态估计及其协方差。特别地,给出了先验信息(发射时间、主动段净加速度模板)获得与否的三种具体情况,详细推导了在这三种情况下的运动状态估计及其统计特性,进一步考察了算法的适用范围。最后,对算法进行了Monte-Carlo仿真研究,仿真结果表明:三种情况下位置和速度误差都接近于CRLB限,验证了估计算法的一致性和有效性。

关键词：状态估计最小二乘问题净加速度 Levenberg-Marquardt算法

高超声速滑翔飞行器滑翔段初始状态的唯一性和最优性分析

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国防科技大学学报 2020年第5期42卷 115-125页

作者：孟繁卿田康生空军预警学院研究生大队湖北武汉430019 空军预警学院预警情报系湖北武汉430019

临近空间高超声速滑翔飞行器的弹道特性主要受滑翔段初始状态和飞行器控制律影响。在飞行器控制律确定的情况下,研究了滑翔段初始状态对高超声速滑翔飞行器弹道特性的影响规律。按照滑翔弹道的不同形式,在纵向平衡滑翔条件下,通过理论... 详细信息

临近空间高超声速滑翔飞行器的弹道特性主要受滑翔段初始状态和飞行器控制律影响。在飞行器控制律确定的情况下,研究了滑翔段初始状态对高超声速滑翔飞行器弹道特性的影响规律。按照滑翔弹道的不同形式,在纵向平衡滑翔条件下,通过理论推导得出飞行器状态变量的解析式,结合平衡滑翔条件分析平衡滑翔弹道滑翔段初始状态的唯一性;在纵向跳跃滑翔条件下,构建弹道性能评价指标,利用群智能算法,寻找弹道性能最优时的滑翔段初始状态。利用单因素敏感性分析方法,分别对两种滑翔弹道的滑翔段初始状态进行敏感性分析,初始状态中初始速度对弹道特性的影响最大。对高超声速滑翔飞行器初始状态唯一性与最优性的分析,可为高超声速滑翔飞行器的弹道设计、弹道跟踪、轨迹预测和轨迹优化提供借鉴。

关键词：高超声速纵向滑翔初始状态唯一最优敏感性

Transforming growth factor-beta 1 enhances discharge activity of cortical neurons

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Neural Regeneration Research 2025年第2期20卷 548-556页

作者： Zhihui Ren tian Li Xueer Liu Zelin Zhang Xiaoxuan Chen Weiqiang Chen kangsheng Li Jiangtao Sheng Department of Microbiology and Immunology Guangdong Provincial Key Laboratory of Infectious Diseases and Molecular ImmunopathologyShantou University Medical CollegeShantouGuangdong ProvinceChina Department of Neurosurgery First Affiliated Hospital of Shantou University Medical CollegeShantouGuangdong ProvinceChina

Transforming growth factor-beta 1(TGF-β1)has been extensively studied for its pleiotropic effects on central nervous system *** neuroprotective or neurotoxic effects of TGF-β1 in specific brain areas may depend on the pathological process and cell types ***-gated sodium channels(VGSCs)are essential ion channels for the generation of action potentials in neurons,and are involved in various neuroexcitation-related ***,the effects of TGF-β1 on the functional properties of VGSCs and firing properties in cortical neurons remain *** this study,we investigated the effects of TGF-β1 on VGSC function and firing properties in primary cortical neurons from *** found that TGF-β1 increased VGSC current density in a dose-and time-dependent manner,which was attributable to the upregulation of Nav1.3 *** VGSC current density and Nav1.3 expression were significantly abolished by preincubation with inhibitors of mitogen-activated protein kinase kinase(PD98059),p38 mitogen-activated protein kinase(SB203580),and Jun NH2-terminal kinase 1/2 inhibitor(SP600125).Interestingly,TGF-β1 significantly increased the firing threshold of action potentials but did not change their firing rate in cortical *** findings suggest that TGF-β1 can increase Nav1.3 expression through activation of the ERK1/2-JNK-MAPK pathway,which leads to a decrease in the firing threshold of action potentials in cortical neurons under pathological ***,this contributes to the occurrence and progression of neuroexcitatory-related diseases of the central nervous system.

关键词： central nervous system cortical neurons ERK firing properties JNK Nav1.3 p38 transforming growth factor-beta 1 traumatic brain injury voltage-gated sodium currents

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舰载相控阵雷达组网资源管理的一致性算法

兵工学报 2019年第10期40卷 2096-2104页

作者：杨善超田康生吴长飞空军预警学院预警情报系

在舰载相控阵雷达网分布式资源管理中,由于各雷达对其他节点的状态估计存在偏差以及节点间信息传输受到噪声扰动,会导致资源管理方案不一致的问题。针对该问题,采用图论方法表示相控阵雷达网的拓扑结构,并进行舰载相控阵雷达网一致性资... 详细信息

在舰载相控阵雷达网分布式资源管理中,由于各雷达对其他节点的状态估计存在偏差以及节点间信息传输受到噪声扰动,会导致资源管理方案不一致的问题。针对该问题,采用图论方法表示相控阵雷达网的拓扑结构,并进行舰载相控阵雷达网一致性资源管理的需求分析,进而从均衡雷达负载和资源消耗最小两方面构建各雷达的本地资源管理优化模型,各节点根据该模型给出具有差异性的本地优化资源管理方案,通过网络节点间的信息传输,运用一致性算法对各方案进行迭代处理,得到全局一致性方案。仿真结果表明,该算法能够有效地给出全局一致的资源管理方案,并且针对不同拓扑结构以及信息传输噪声的舰载相控阵雷达网都能实现收敛。

关键词：舰载相控阵雷达组网资源管理分布式一致性算法

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基于服务质量的相控阵雷达网目标分配方法

电子与信息学报 2019年第12期41卷 2844-2851页

作者：杨善超田康生吴长飞空军预警学院预警情报系

针对目前相控阵雷达网目标分配模型中约束条件构建不合理以及求解算法性能不高的问题,该文构建了基于服务质量(QoS)的雷达网目标分配模型,并提出基于强凹曲线逼近的模型求解算法。通过QoS模型中资源空间、环境空间的建立准确描述雷达的... 详细信息

针对目前相控阵雷达网目标分配模型中约束条件构建不合理以及求解算法性能不高的问题,该文构建了基于服务质量(QoS)的雷达网目标分配模型,并提出基于强凹曲线逼近的模型求解算法。通过QoS模型中资源空间、环境空间的建立准确描述雷达的资源限制以及雷达与目标的可见性约束;通过库恩-塔克(KKT)条件推导出QoS模型最优解存在的充分条件,利用2维快速遍历方法逼近得到强凹函数曲线,最后对每个目标强凹曲线中的操作设定点进行逐步迭代得出优化分配方案。仿真结果表明:模型能够有效完成雷达网任务分配,且所提模型求解算法相比典型的智能搜索算法有更好的性能。

关键词：相控阵雷达网目标分配服务质量系统效用强凹曲线