ID 原文 译文
47916 实验结果表明,在小样本条件下,所提算法在准确性上优于最大似然估计和保序回归,但时效性介于二者之间。 The experimental results show that, under the condition of small samples, the proposed algorithm on the accuracy is better than that of maximum likelihood estimation and isotonic regression, but timeliness between the two.
47917 为了降低对地面测控站的依赖,提升导航卫星自身的自主运行能力具有重要意义。 In order to reduce their dependence on the ground control stations, improve navigation satellite's own independent operation ability is of great significance.
47918 导航卫星在轨道控制期间,自主定轨误差将会产生重大偏差, Navigation satellite during orbit control, autonomous orbit determination error would have significant deviation,
47919 为了能够快速恢复星历,提升导航系统的应用效率,针对导航卫星轨控期间的自主轨道确定技术进行了研究。 in order to quickly recover ephemeris, promote efficiency of the application of navigation system, in view of the navigation satellite orbit control during autonomous orbit determine technology were studied.
47920 首先,在传统的天文导航的基础上引入了加速度信息,然后根据加速度计测量以及估计误差判断,选择合适的时机在轨控期间对估计误差方差阵进行重置。 First of all, on the basis of the traditional astronomical navigation acceleration information is introduced, then according to the accelerometer to measure and estimate error of judgment, the choice of appropriate on-orbit control period to reset the estimation error variance matrix.
47921 仿真结果表明,基于加速度信息的自适应导航滤波算法,能够有效降低导航误差收敛时间, The simulation results show that the adaptive navigation filtering algorithm based on acceleration information, can effectively reduce the navigation error convergence time,
47922 同时降低估计误差峰值。 at the same time reduce the estimation error of the peak.
47923 对空中交通复杂度长周期的准确预测是实现空中交通管理系统资源动态分配的一个关键因素。 Long cycle of air traffic complexity of accurate prediction is to realize the air traffic management system resources dynamically allocated a key factor.
47924 针对以往的空中交通复杂度评估方法中长周期预测精度不足的问题,提出了一种基于飞机似然轨迹预测的复杂度评估方法。 Air traffic complexity evaluation methods for ever long cycle, the problem of insufficient accuracy, this paper proposes a complexity evaluation method based on likelihood flight track forecast.
47925 所提方法利用随机线性混杂系统理论对飞机动态和外部扰动进行建模,并结合飞机飞行意图实现飞机轨迹的准确预测; Proposed method using the theory of stochastic linear hybrid system modeling was carried out on the aircraft dynamics and external disturbances, and combining the plane flight intention to realize the plane trajectory accurately forecast;