基于瞬态相对模型的轨道机动目标运动参数估计

空问目标可能存在未知的机动,针对该类目标相对导航问题,提出一种基于瞬态相对模型的运动参数估计方法.该方法依据轨道密切性思想,在瞬态意义下建立相对运动模型和机动辨识算法,然后通过密切轨道到参考轨道的量测变换对冻结时间模型进行状态滤波,可为目标机动下的自主导航提供所需的相对状态与目标机动参数估值.误差分析表明,所得估值偏差均有界.仿真验证了该方法在目标存在机动情况下的有效性和一般性.

Transient relative model based kinematical parameter estimation for orbital maneuvering target

Unknown maneuver is possibly existed for space target.For solving the problem of relative navigation of that type of target,a kinematic parameter estimation method based on transient relative model is proposed.According to osculation property of orbit,relative motion model and identification algorithm of target maneuver are built in transient sense.Then state estimation on frozen-time model is given through measurement transformation from osculating to referenced orbit.This method can simultaneously estimat...