ID | 原文 | 译文 |
6464 | 结果还显示,在特定参数设置或样本数、观测次数组合设置下,模型错误指定将对MTTF的估计带来较大影响,这在工程实践中具有一定参考价值。 | Results also showed that the specific parameter Settings, or sample, observation times combination Settings, the model error to specify the estimate of the MTTF brings great influence, it has certain reference value in engineering practice. |
6465 | 针对四旋翼无人机轨迹跟踪过程易受外界未知干扰而引起跟踪误差的问题,设计了基于积分反步法的滑模位置控制器。 | Four rotor unmanned aerial vehicle (uav) for trajectory tracking process is vulnerable to the outside world unknown disturbance and cause the problem of tracking error, design the sliding mode position controller based on integral the footwork. |
6466 | 在该控制系统中,位置回路采用滑模积分反步法(sliding mode integral backstepping,IBS-SMC)非线性控制方法,姿态回路采用经典比例积分微分(proportion integration differentiation,PID)控制方法。 | In the control system, the position loop adopts sliding mode integral gait (sliding mode integral backstepping, IBS - SMC) nonlinear control method, attitude loop USES the classical PID (proportion integration differentiation, PID) control method. |
6467 | 通过仿真对PID、线性二次型调节器、IBS-SMC进行了比较。 | Through the simulation of PID, the linear quadratic regulator, IBS - SMC are compared. |
6468 | 仿真结果表明与传统方法相比,IBS-SMC法具有更好的抗干扰能力与控制精度。 | The simulation results show that compared with traditional methods, IBS - SMC method has a better anti-jamming capability and control precision. |
6469 | 最后通过飞行实验,检验了控制算法可行性。 | At last, by flying experiment, testing the feasibility of control algorithm. |
6470 | 实验结果表明,所设计的IBS-SMC是一种符合工程实际的控制方法。 | The experimental result shows that the design of IBS - SMC is a control method accord with the engineering practice. |
6471 | 为了验证理论建模计算合成孔径雷达(synthetic aperture radar,SAR)仿真图像的准确性,给出基于层次分析法(analytic hierarchy process,AHP)、模糊综合评判(fuzzy comprehensive evaluation,FCE)、图像特征与Fisher可分性及目标识别等知识综合的车辆目标SAR仿真图像评估方法。 | In order to verify the theoretical model calculation synthetic aperture radar (synthetic aperture radar, SAR), the accuracy of the simulation image is given based on AHP (analytic hierarchy process, the AHP) and fuzzy comprehensive evaluation, fuzzy comprehensive evaluation, FCE), image characteristics and Fisher separability and target recognition knowledge integrated vehicle target SAR simulation image evaluation methods. |
6472 | 首先确定五级评语集{优秀,良好,中等,较差,很差},然后根据AHP构建评估因素集,分别利用Fisher可分性判据和目标识别率确定二级FCE的两层权重向量; | First determine magnitude evaluation set {excellent, good, medium, low, very poor}, then according to the AHP to construct the sets of evaluation factors, respectively by using Fisher separability criterion and the target recognition rate determine the two layers of the weight vector of the secondary FCE; |
6473 | 再依据图像相似度评价标准区间构建模糊隶属函数; | again according to the image similarity evaluation standard range to construct the fuzzy membership function; |