ID 原文 译文
49527 研究了刚性航天器的时延姿态稳定控制问题。 Studied the time delay of rigid spacecraft attitude stability control problem.
49528 首先建立了基于修正罗德里格斯参数(modified rodrigues parameters，MRPs)的航天器非线性状态模型，具有确定上界的时延项在状态反馈控制律中体现。 First based on the modified rodrigues parameters (modified rodrigues parameters, MRPs) spacecraft state of nonlinear model, to determine the upper bound of time delay item is in the state feedback control law.
49529 通过构造Lyapunov-Krasovskii泛函进行稳定性分析，由此得到保证系统渐近稳定的线性矩阵不等式，依此设计状态反馈控制系数矩阵。 By constructing Lyapunov - Krasovskii functional stability analysis, thus guaranteed the system asymptotic stability of linear matrix inequality (lmi), in accordance with the design of state feedback control coefficient matrix.
49530 考虑到航天器三轴间的耦合非线性项，利用扩张状态观测器(extended state observer，ESO)方法， Considering the coupling between the spacecraft triaxial nonlinear term, using the extended state observer (extended state observer, ESO) method,
49531 设计了二阶非线性扩张状态观测器，以获得航天器系统内部状态向量并用于状态反馈控制律。 the design of the second order nonlinear extended state observer, in order to obtain the spacecraft within the system state vector and applies it to the state feedback control law.
49532 为便于工程实际应用，仿真中将MRPs响应输出转换为欧拉角响应， For convenience of practical engineering application, the simulation will be MRPs response output into euler Angle response,
49533 仿真结果表明，本文所设计的控制系统能保证航天器三轴姿态稳定。 the simulation results show that in this paper, the designed control system can guarantee the stability of aircraft three-axis attitude.
49534 具有非对称结构的进动目标成像是目前空间目标成像的一个难点。 With asymmetric structure into the moving target imaging is a difficulty of space target imaging.
49535 在构建非对称进动目标回波模型的基础上，分析了成像所需的4个微动参数并给出了相应的参数估计方法。 In constructing a model on the basis of asymmetric precession target echo, analyzes the four micro imaging required parameters and corresponding parameter estimation method is presented.
49536 在微动参数已知的前提下，提出了一种基于三维复数逆投影变换的进动目标三维成像的方法。 On the premise of micro parameters are known, is put forward based on the three-dimensional complex inverse projection transform precession target 3 d imaging methods.