针对天基红外系统(Space Based Infrared System,SBIRS)三星探测弹道估计问题,提出GEO卫星与HEO卫星探测数据融合的估计算法。根据星座构成和探测体制,利用STK分析SBIRS对某一区域的覆盖能力,约43%的时间可以实现三星以上完全覆盖;建立...针对天基红外系统(Space Based Infrared System,SBIRS)三星探测弹道估计问题,提出GEO卫星与HEO卫星探测数据融合的估计算法。根据星座构成和探测体制,利用STK分析SBIRS对某一区域的覆盖能力,约43%的时间可以实现三星以上完全覆盖;建立三星探测数据融合算法模型,对导弹目标的运动状态进行实时估计,导弹运动建模采用当前统计模型,数据融合采用集中式结构,滤波算法采用无迹卡尔曼滤波。试验表明,与双星探测弹道估计误差相比,三星探测弹道估计误差显著减小。展开更多
A comprehensive safety evaluation system taking the most influential factors into account has been developed to evaluate the reliability of hydraulic metal structures. Applying the techniques of AI and DB, the idea of...A comprehensive safety evaluation system taking the most influential factors into account has been developed to evaluate the reliability of hydraulic metal structures. Applying the techniques of AI and DB, the idea of a one-machine and three-base system is proposed. The framework of the three-base system has been designed and the structural framework constructed in turn. A practical example is given to illustrate the process of using this system and it can be used for comparison and analysis purposes. The key technology of the system is its ability to reorganize and improve the expert system＇s knowledge base by establishing the expert system. This system utilizes the computer technology inference process, making safety evaluation conclusions more reasonable and applicable to the actual situation. The system is not only advanced, but also feasible, reliable, artificially intelligent, and has the capacity to constantly grow.展开更多
文摘针对天基红外系统(Space Based Infrared System,SBIRS)三星探测弹道估计问题,提出GEO卫星与HEO卫星探测数据融合的估计算法。根据星座构成和探测体制,利用STK分析SBIRS对某一区域的覆盖能力,约43%的时间可以实现三星以上完全覆盖;建立三星探测数据融合算法模型,对导弹目标的运动状态进行实时估计,导弹运动建模采用当前统计模型,数据融合采用集中式结构,滤波算法采用无迹卡尔曼滤波。试验表明,与双星探测弹道估计误差相比,三星探测弹道估计误差显著减小。
基金supported by the National Natural Science Foundation of China (Grant No. 50539010)
文摘A comprehensive safety evaluation system taking the most influential factors into account has been developed to evaluate the reliability of hydraulic metal structures. Applying the techniques of AI and DB, the idea of a one-machine and three-base system is proposed. The framework of the three-base system has been designed and the structural framework constructed in turn. A practical example is given to illustrate the process of using this system and it can be used for comparison and analysis purposes. The key technology of the system is its ability to reorganize and improve the expert system＇s knowledge base by establishing the expert system. This system utilizes the computer technology inference process, making safety evaluation conclusions more reasonable and applicable to the actual situation. The system is not only advanced, but also feasible, reliable, artificially intelligent, and has the capacity to constantly grow.
