ID |
原文 |
译文 |
9314 |
针对多手持终端仅测速实时定轨问题,设计了一种自适应联邦强跟踪容积卡尔曼滤波(strong tracking cubature Kalman filter,STCKF)算法。 |
For multiple handset only speed real time orbit determination problem, design a kind of strong adaptive federal Kalman filter tracking volume (strong tracking cubature Kalman filter, STCKF) algorithm. |
9315 |
首先,使用欧拉预测校正法对带J2项摄动的轨道动力学方程进行离散得到状态方程。 |
First, using euler prediction correction method of J2 perturbation of orbital dynamic equations of the discrete state equation is obtained. |
9316 |
然后,为每个手持终端设计了STCKF滤波算法,该算法基于强跟踪滤波(strong tracking filter,STF)的等价表示计算次优渐消因子以在线实时调整增益矩阵,提高短弧段内滤波估计收敛速度。 |
Then designed for each handset STCKF filtering algorithm, the algorithm is based on strong tracking filter (strong tracking filter, STF) equivalent said calculation of suboptimal fading factor in online real-time adjustment of gain matrix, improve the short segment filtering estimation convergence speed. |
9317 |
进而,利用信息最优合成算法对每个终端输出的局部定轨结果进行融合,为提高信息融合精度,信息分配因子由误差协方差矩阵的Frobenius范数自适应确定。 |
Thus, the use of information, the optimal synthesis algorithm for each terminal output of local orbit determination result, to improve the accuracy of information fusion, information distribution factor of error covariance matrix adaptive determine Frobenius norm. |
9318 |
最后的仿真结果表明,欧拉预测校正法可以有效提高轨道动力学方程离散精度,自适应联邦STCKF算法可以有效提高实时定轨精度和滤波收敛速度。 |
Finally the simulation results show that the euler prediction correction method can effectively improve the orbital dynamics equation discrete precision, adaptive federal STCKF algorithm can effectively improve the real-time accuracy of orbit determination and filter convergence speed. |
9319 |
当前信息优势度量研究混淆了信息优势及其效能等概念,度量指标缺乏严格数学基础,存在操作性不强、解释力不足、适用范围有限等缺点。 |
Current information advantage measurement concepts such as confusion of information superiority and its efficiency, measures the lack of strict mathematical foundation, there is operational is not strong, lack of explanatory power and limited application scope, the shortcomings. |
9320 |
针对上述问题,提出了一种基于集合距离的信息优势度量方法,通过引入感知信息集合与客观信息集合的距离度量,重新定义信息质量、信息优势等重要概念。 |
Aiming at these problems, this paper proposes a measurement method of the information advantage based on the set distance by introducing awareness information collection and objective information collection of distance measurement, new concept of information quality and information advantage and other important. |
9321 |
详细讨论了最优子模式分配等几种常用集合距离的选取,并利用基于Agent的同质化协同模型对最优子模式分配距离下的信息质量进行了初步验证。 |
Distribution of the sub model are discussed in detail such as the selection of several common set distance, and by using the homogeneous collaborative model based on Agent most of sub model under distribution distance information quality has carried on the preliminary verification. |
9322 |
结果表明,该方法具备可操作性,可更好反映信息优势局部和动态特性,且在部分条件下可退化为传统方法,灵活性和兼容性更强。 |
Results show that this method possess maneuverability, can better reflect the local information advantage and dynamic characteristics, and under the condition of the part can be degraded into the traditional method, greater flexibility and compatibility. |
9323 |
提高复杂环境下无人飞行器(unmanned aerial vehicle,UAV)自主避障能力成为亟待解决的关键问题。 |
Enhance unmanned aerial vehicles in complex environment (unmanned aerial vehicle, UAV) autonomous obstacle avoidance ability to become a key problem to be solved. |