论文部分内容阅读
本文提出一种跟踪机动目标的改进方法。通过组合输入估计方法和可变维滤波方法的递归公式,构成所提出的跟踪滤波器。在所提出的方法中,当探测到目标机动时,滤波器还提供目标开始机动瞬时的估计。用这种估计的机动开始时间,也估计机动输入并且跟踪系统变成了机动模型。所提出过程的计算负载与输入估计方法的计算负载不相上下。为了说明所提出跟踪滤波器的效果,进行了仿真,把输入估计滤波器和可变维滤波器与交互式多模型(IMM)滤波器进行了比较。
This paper presents an improved method of tracking maneuvering targets. The proposed tracking filter is constructed by combining the recursive formulas of the input estimation method and the variable dimension filtering method. In the proposed method, the filter also provides an estimate of the instant the target starts maneuvering when the target maneuver is detected. Using this estimated maneuver start time, the maneuver input is also estimated and the tracking system becomes a maneuvering model. The computational load of the proposed process is comparable to the computational load of the input estimation method. To illustrate the effectiveness of the proposed tracking filter, simulations were performed to compare the input estimation filter with the variable dimension filter with an interactive multimode (IMM) filter.