红外/雷达复合制导数据融合技术中的时间校准方法研究

从理论上分析了适合于红外/雷达双模复合制导背景下数据融合的3种时间校准方法,以校准误差为标准,时间片和目标机动为影响因素对这3种方法的校准效果进行了分析比较,并首次对传感器测量噪声在校准中的传播变化情况通过计算机仿真进行了尝试性研究。仿真结果表明:分段线性插值方法计算最简单,对噪声在校准过程中传播的不确定性有较好的抑制作用,且对时间片和目标机动均不敏感,它满足了双模复合制导对数据融合时间校准方法的要求。最后给出了分段线性插值在双模复合制导数据融合中的应用仿真结果,结果表明分段线性插值方法的时间校准性能良好。

Research on Time Zero Method of Data Fusion Based on Radar/Infrared Dual Mode Guidance

Among many techniques of time zero in data fusion,three interpolations are suitable for infrared and radar data fusion in target tracking system,which are investigated in this paper by the given definition of performance in time slice and maneuverability of target which influences the performance of time zero.The study on the variation of measurement noise during its transmission in time zero process with different interpolation is first put forward by the simulation on computer.And the results of simulation prove that the linear interpolation not only is robust in time slice and maneuverability of target but also can obtain the high data precision.The application of the interpolation in data fusion based on radar/infrared dual mode guidance proves its good performance.And the simulation results are shown in the last part of the paper.