ID | 原文 | 译文 |
7864 | 仿真以及实测数据均表明,本文所提算法能够有效消除周期相位误差,抑制成对回波,显著改善距离压缩质量。 | Simulation and measured data are show that the proposed algorithm can effectively eliminate the cycle phase error, suppress the paired echoes, significantly improve the compression quality. |
7865 | 视觉和惯性融合姿态测量系统,可以发挥视觉测量重复性、稳定性好和惯性测量输出频率高、不受环境光干扰的特点。 | Visual fusion and inertial attitude measurement system, can play a good visual measurement repeatability, stability, and the inertial measurement output frequency is high, is not affected by the ambient light interference. |
7866 | 针对融合测量中,系统噪声和观测噪声的统计特性不完全可知及在出现异常测量值时融合测量鲁棒性较差的问题,提出一种基于矩阵对角化变换的鲁棒四元数容积卡尔曼滤波(quaternion cubature Kalman filter,QCKF)算法,分析了鲁棒滤波参数对测量系统鲁棒性和测量准确度的影响,使用矩阵对角化变换代替标准CKF中的Cholesky分解以改善数值计算的稳定性。 | In view of the fusion measurement, statistical properties of system noise and observation noise are not fully known and fusion measurement when the abnormal measurements to solve the problem of poor robustness based on a robust quaternion matrix diagonalization of the volume of Kalman filtering (quaternion cubature Kalman filter, QCKF) algorithm, analyses the robust filtering parameter robustness and accuracy of measurement system, the influence of using matrix diagonalization instead of the standard CKF Cholesky decomposition in order to improve the stability of numerical calculation. |
7867 | 结合搭建的视觉和惯性融合姿态测量系统平台,实验结果表明与标准CKF算法相比,具有更高的准确度、鲁棒性以及稳定性。 | Combination of visual and inertial fusion platform attitude measuring system, the experimental results show that, compared with the standard CKF algorithm has higher accuracy, robustness and stability. |
7868 | 针对滑翔制导炮弹姿态控制系统设计时存在的交叉耦合、执行机构响应延迟、控制能力约束以及不确定内外扰动等问题,基于自抗扰控制技术,设计了自抗扰姿态解耦控制器。 | For gliding guided projectile attitude control system design of cross coupling, actuator response delay, control capacity constraints and uncertain problems such as internal and external disturbance, based on the immunity control technology, the immunity attitude decoupling controller is designed. |
7869 | 该控制器结构简单、计算量小、需调控制参数少且不依赖精确的数学模型。 | The controller has simple structure, small amount of calculation, less need to tune control parameters and does not depend on the precise mathematical model. |
7870 | 通过数值仿真验证了该控制器的可行性和有效性。 | Through numerical simulation verify the feasibility and effectiveness of the controller. |
7871 | 结果表明设计的姿态控制器能有效地实现俯仰/偏航解耦,并具有快速精确的跟踪性能以及良好的抗干扰能力。 | Results show that the design of attitude controller can effectively realize decoupling pitch/yaw, and have fast accurate tracking performance and good anti-jamming capability. |
7872 | 此外,控制参数对较大范围内的模型参数摄动不敏感,具备较强的适应性和鲁棒性,可为该类制导炮弹的控制系统设计提供一定的参考依据。 | In addition, the control parameters for a wide range of model parameter perturbation is not sensitive, have strong adaptability and robustness, and can provide the guidance of artillery control system designed to provide certain reference basis. |
7873 | 提出一种可探测远距离气象目标的机载气象雷达探测方法。 | Put forward a kind of airborne weather radar detect remote meteorological target detection method. |