摘要
研究了给定辐射时间限制下的雷达辐射时机最优规划问题,以目标状态估计误差协方差的迹为优化目标函数,建立了雷达辐射时机最优规划模型,推导出了最优规划准则。研究结果表明,给定一段时间内辐射时间限制下,雷达辐射时机点越集中于该段时间终点,目标状态估计误差越小。在该准则下,提出了一种基于协方差控制的雷达实时辐射控制方法,利用预测协方差门限和滤波协方差门限对雷达的辐射进行实时控制。仿真结果表明,提出的方法能很好的控制雷达辐射对目标进行跟踪,雷达辐射时间与预测协方差门限和滤波协方差门限有关,可以根据跟踪需求设置不同参数来控制雷达辐射。得出的结论对雷达辐射控制及提高目标估计精度有一定的理论和实际意义。
The optimum scheduling for radar radiation occasions with emission time constraint is con- cerned, the model of the radar radiation occasions optimum scheduling is established with optimizing ob- jective function the trace of target statement estimation error covariance, the rule of optimum scheduling for radar radiation is drawn. Research results demonstrate, given the emission time constraint, the closer the radar radiation occasions to the end of the time segment is, the less the target statement estimation er- ror is. A method of real-time radar radiation controlling is put forward based on the rule, using the pre- diction covariance threshold and the estimation covariance threshold to control the radar radiation on real time. The simulation results show that, the proposed method can control radar＇ s radiation to track targets smoothly, the radar radiation times is related to the prediction covariance threshold and the estimation co- variance threshold, and radar radiation can be controlled by setting different parameter based on different tracking demand. These conclusions can be used for optimum scheduling for radar radiation to obtain high estimation accuracy.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2012年第1期41-47,共7页
Acta Armamentarii
基金
国家自然基金(61002006
60972159
61002001)
航空科学基金(20085184003)
泰山学者建设工程专项经费资助项目
关键词
雷达工程
相控阵雷达
目标跟踪
辐射控制
最优规划
radar engineering
phased array radar
target tracking
radiation controlling
optimum scheduling
