ID 原文 译文
38776 首先根据非稳态度量函数将需求序列划分为稳态子区间,然后对各子区间采用SVR进行预测,同时针对基于径向基函数(radial basis function,RBF)核函数的SVR对参数的敏感性问题,采用布谷鸟搜索算法(cuckoo search,CS)对SVR参数进行寻优,最后将各区间的预测结果进行加权求和得到最终预测结果。 First sequence according to the requirements of unsteady measurement function will be divided into steady state subinterval, then forecast the subinterval using SVR, at the same time based on radial basis function (radial basis function, RBF) kernel function of SVR sensitivity to parameters of the problem, the cuckoo search algorithm (cuckoo search, CS) of SVR parameters optimization, the final will be weighted sum of the forecasting results of each interval to get the final prediction results.
38777 算例对比分析表明,该方法能够一定程度上降低数据非稳态影响,提高任务器材需求预测准确率。 The analysis of examples shows that this method is able to a certain extent, reduce the transient data, improve the task equipment demand forecasting accuracy.
38778 针对星上相机运动干扰影响遥感卫星图像配准精度控制难题,研究基于磁浮控制力矩陀螺(magnetically suspended control moment gyros,MSCMG)的复合补偿控制提高图像配准精度的方法。 In view of the stars on camera movement interference effect the precision of satellite remote sensing image registration control problem, research based on the maglev control moment gyro (magnetically suspended control moment gyros, MSCMG) composite compensation control method to improve the precision of image registration.
38779 以基于MSCMG作为执行机构,采用姿态反馈补偿控制方法,避免复杂的控制系统前馈补偿及其自身干扰,姿态稳定精度达到5.8×10-5(°)/s。 Based on MSCMG as actuators, adopt the attitude feedback compensation control method, to avoid the complex control system, feedforward compensation and its own interference attitude stabilization accuracy reaches 5. 8 x 10-5 (°)/s.
38780 在此基础上,提出了MSCMG姿态补偿控制与相机运动补偿算法一体化的复合补偿控制方法。 Based on this, puts forward the MSCMG attitude compensation control and camera motion compensation algorithm integrated composite compensation control method.
38781 仿真结果表明:采用一体化复合补偿控制,跟踪相机步进角精度由补偿前的6μrad提高到补偿后的0.36μrad,提高了一个数量级以上; The simulation results show that the integration of composite compensation control, precision stepper Angle tracking camera by compensation before 6 mu 0. 36 mu of rad, rad to compensation increased by over an order of magnitude,
38782 扫描角精度由补偿前的0.6μrad提高到补偿后的0.45μrad; By scanning Angle precision compensation before 0. 6 mu of rad to compensation after 0.45 mu rad;
38783 显著提高了相机光轴指向的稳定性;研究结果可为甚高精度遥感卫星高精度图像配准设计提供参考。 Significantly improve the stability of camera optical axis pointing;The results of the study can provide very high resolution remote sensing satellite high accuracy image registration is designed to provide the reference.
38784 传统作战系统效能分析大多基于统计和仿真分析的方法开展,无法细致刻画实际作战中人员操作运用所造成的影响以及系统内各属性要素之间的因果关系影响。 Traditional system effectiveness analysis is mostly based on statistics and simulation analysis method to carry out, not detailed description personnel in actual combat operations use the impact and each attribute the causal relationship between the factors of influence in the system.
38785 从方法学研究的角度看,作战系统的运用效能是系统装备、人和环境综合作用的结果,需要一种解析化的分析方法。 From the perspective of methodology research, the use of combat system effectiveness is a result of the combined action of system equipment, the people and the environment, need a kind of analytical method.