| ID | 原文 | 译文 |
| 14285 | 针对弱约束非合作目标的轨迹具有复杂性、海量性和实时性等特点,传统轨迹分析处理技术较难有效发挥作用,提出了弱约束非合作目标轨迹预处理技术。 | The trajectories of weakly-constrained non-cooperative targets are massive complex and hasreal-time feature． Traditional trajectory analysis and processing technology is difficult to play an effective rolehere thus we propose a technology for preprocessing the weakly-constrained non-cooperative target trajectories． |
| 14286 | 研究了离群点、缺失点和冗余点的清理模型；提出了基于航速、航向变化率约束的轨迹降维方法;采用了规约和扩充的方法,增加了轨迹数据的多样性。 | The model for cleaning the outliers missing points and redundant points is studied． Adimensionality reduction method for trajectories is proposed based on the constraints of speed and coursechange rate． The reduction and expansion methods are adopted to increase the diversity of trajectory data． |
| 14287 | 仿真结果表明,经过处理后,轨迹的压缩率为64.44%,精度损失仅为26.71%,数据集扩充了3倍,获得了高质量的轨迹数据,降低模型对轨迹特征的敏感性,提高了模型的泛化能力。 | The simulation results show that: 1 ) The compression rate of the processed trajectory is 64． 44% theaccuracy loss is only 26． 71% and the data set is expanded by 3 times; 2) High-quality trajectory data isobtained; and 3) The sensitivity of the model to the trajectory characteristics is reduced and the model'sgeneralization capability is improved． |
| 14288 | 针对高超声速飞行器(HSV)在巡航段飞行时模型参数不确定和干扰的问题,提出了HSV鲁棒预测滑模姿态控制方法,由系统实际输出值与参考轨迹的误差设计滑模面,引入预测函数对误差进行预测可得未来时刻的滑模面,再利用改进的滑模趋近律设计快慢回路控制器。 | Aiming at the problems of model parameter uncertainty and interference of Hypersonic Vehicles( HSVs) in cruise phase a robust predictive sliding mode attitude control method is proposed． The slidingmode surface is designed by using the error between the actual output value and the reference trajectory andthe prediction function is introduced to predict the error thus the sliding mode surface of the future time canbe obtained． The speed-loop controller is designed by using the improved sliding mode approaching law． |
| 14289 | 该方法能使HSV在参数不确定和有干扰的情况下,保证姿态系统稳定,精确跟踪指令信号,具有较强的鲁棒性,提高了系统的控制性能。最后,通过仿真验证了该方法的有效性。 | This method ensures the stability of the attitude system and the accurate tracking of the command signal under thecondition of uncertain parameters and interference which has strong robustness and improved controlperformance． The effectiveness of the method has been verified by simulation． |
| 14290 | 传统的亚毫米波成像算法可以对待测目标成像,但是,一方面,由于成像系统的低通特性,损失信号中的高频分量,造成图片细节部分的缺失。 | Traditional submillimeter-wave imaging algorithms can image the target to be detected． Howeverdue to the low-pass characteristics of the imaging system high-frequency components in the signal arelost resulting in the loss of details in the picture． |
| 14291 | 另一方面,在信号处理过程中由于波瓣展宽,各像点发生混叠引起模糊。 | On the other hand the lobes are broadened in the course ofsignal processing which may lead to aliasing of image points． |
| 14292 | 针对传统算法存在的成像清晰度差和分辨率低等缺点,提出了一种基于改进凸集投影(POCS)的亚毫米波成像超分辨率算法,该算法利用双线性插值获得高分辨率初始图像,并对初始图像进行迭代修正,引入自适应校正阈值,利用边缘强度的大小动态调整校正阈值,从而达到精确高分辨率复原的目的。 | Aiming at the shortcomings of the traditionalalgorithm in terms of poor imaging clarity and low resolution this paper proposes a submillimeter-waveimaging super-resolution algorithm based on improved Projections Onto Convex Sets ( POCS) ． This algorithmuses bilinear interpolation to obtain a high-resolution initial image． The initial image is subjected to iterativecorrection of convex set projection． Then the adaptive correction threshold is introduced and the correctionthreshold is dynamically adjusted by using the magnitude of the edge intensity so as to achieve the purposeof accurate high-resolution restoration． |
| 14293 | 仿真实验结果表明,该算法能够较为精确地修正图像的像素,提高成像图片的分辨率和清晰度。 | Simulation results show that the algorithm can more accurately correctthe pixels of the image and improve the image resolution and imaging quality． |
| 14294 | 光在水下传播受到微粒和水吸收作用的影响,导致水下图像对比度低,含有噪声且存在颜色偏差。 | The light propagation under water is influenced by the absorption of water and particles whichmay result in low contrast noise and color deviation of underwater images． |