一种改进的临近空间高超声速飞行器跟踪算法  

An Improved Near Space Targets Tracking Algorithm

作　　者：杨彬[1] 贺正洪[1] 

机构地区：[1]空军工程大学防空反导学院,陕西西安710051

出　　处：《计算机仿真》2014年第11期83-87,共5页Computer Simulation

摘　　要：针对传统的自适应网格算法在跟踪高超声速飞行器高机动目标时,会出现跟踪位置不稳定的问题,在自适应网格算法中引入了转换模式和抑制模式,得到了一种改进的变结构交互多模型算法——SAG-VSMM算法,通过转换模式和抑制模式的切换来避免了不同模型状态滤波过程中的相互干扰,具有更好的鲁棒性。仿真结果表明,改进方法在跟踪临近空间目标时,能够实现对目标的精确跟踪,并且具有计算量较小、跟踪精度高、鲁棒性强的特点,较传统自适应网格算法跟踪精度得到一定提高。In view of the fact that it is difficult for the traditional AG-VSMM algorithm to accurately describe the state of near space target, the paper addressed an improved algorithm, SAG-VSMM. When tracking near space hypersonic targets, the traditional AG-VSMM algorithm can be unstable. Then, the conversion-inhibition model was introduced into the AG algorithm, the improved algorithm can avoid the mutual interference and has better robustness. The simulation results show that this model is effective in target tracking for hypersonic aircrafts in near space, and compared with the other traditional algorithm, this algorithm has a less amount of calculation, higher tracking precision and better robustness.

关 键 词：自适应网格 高超声速飞行器 转换抑制模型 目标跟踪 

分 类 号：TN957[电子电信—信号与信息处理]