基于AGIMM的临近空间机动目标跟踪滤波算法

Tracking filter algorithm for near space target based on AGIMM

由于临近空间高超声速目标的机动形式复杂,单一模型很难满足高精度跟踪的需要。因此需要使用基于多种模型进行交叉耦合的交互式多模型算法,这种算法特点与临近空间目标高速、高机动特性相适应。提出了一种自适应网格交互多模型跟踪算法用于临近空间高超声速机动目标的跟踪问题。所提方法能够处理自适应时变模型集合,随时调整当前时刻使用的模型数量,相比于固定结构交互式多模型算法极大减少了计算量,计算效率和跟踪精度更高,数值仿真结果验证了所提算法的有效性。

Due to the current maneuvering target model is developing towards more and more modular anO parallel computing, which puts forward higher requirements for calculation efficiency of the algorithm. For high supersonic maneuvering targets in near space, their maneuvering forms are very complex, since the precision of a single target maneuvering model cannot satisfy the requirements of tracking. So it is necessary to use the inter- active multiple model algorithm for cross coupling based on a variety of models. The characteristic of this algo- rithm is adapted to that of high speed and high maneuver for near space targets. This paper puts forward an al- gorithm called adaptive grid interacting multiple model algorithm which is used to track high supersonic maneu- vering targets in near space, this algorithm guarantees large target tracking accuracy and calculation efficiency, the validity of the algorithm is verified with numerical simulation results.