光电跟踪系统的激光回波率下界估计

为了优化目标测定仪中的激光回波率指标,将激光回波视为不完全量测序列,并将回波率下界描述成一个非线性矩阵不等式(NMI)的最优解,利用摄动线性化方法给出了NMI的求解算法.通过对匀速直线航路、匀速圆周航路和俯冲航路3种场景中的激光回波率进行仿真求解.结果表明,当激光回波率大于下界时,统计意义下的估计误差协方差对任意初值均...

Estimation on Laser Echo Rate of Opto-electric Tracking Systems

For the optimization of the laser echo rate in the target measurement system,the laser echo is considered as a sequence with intermittent observation in this paper.Its lower bound is described as an optimal solution of the nonlinear matrix inequality(NMI) which is solved by using a perturbation linearization method.The laser echo rates in uniform linear,circular and pitchdown airways are simulated.The simulation results show that the statistical evaluated error covariance all converge for any initial value,when the laser echo rate is greater than the lower bound.This algorithm avoids the shortage of traditional method depended on the experience to determine the laser echo rate.Therefore,it can be used in the optimal design of the laser echo rate in the target measurement system.