ID 原文 译文
9904 ‭在方位向处理中,给出了一种改进的非线性调频变标算法(nonlinear chirp scaling,NCS),补偿了方位空变相位误差,实现了方位向的高精度成像。 ‭In the position to handle, an improved nonlinear frequency modulation is given variable scale algorithm (nonlinear chirp scaling, replication), empty disguised bit error compensation for azimuth, implements the orientation toward the high resolution imaging. ‭
9905 最后仿真实验验证了理论分析结果及所提成像方法的有效性。 Finally simulation results verify the theoretical analysis results and the commission as the effectiveness of the method.
9906 群分割技术作为群目标跟踪技术的首要环节,其处理结果直接影响后续整个数据处理过程的效果。 Group of segmentation technology as the primary part of group of target tracking technology, the processing results directly affect the subsequent effect of the whole process of data processing.
9907 在深入研究目前已有的群分割技术的基础上,提出了一种基于坐标映射距离差分的快速群分割算法。 In the further study of the existing group of segmentation technology, on the basis of this paper proposes a rapid group of segmentation algorithm based on coordinate mapping distance difference.
9908 首先将量测集的二维信息分解为两组坐标映射距离的一维信息,进而分别进行排序和分群处理,从而减小了算法的时间复杂度,最后将分别获得的两组预备群进行取交关联,得到最终的分割群。 Will first measuring the two-dimensional information of a set is decomposed into two groups of one-dimensional coordinate mapping distance information, thus sorting and grouping processing respectively, so as to reduce the time complexity of the algorithm, finally will obtain the preparatory group of the two groups to take pay, get the final segmentation.
9909 通过与3种传统算法在时间复杂度上的理论分析与比较,该方法在大视场回波稀疏条件下具有显著的效率优势。 With three kinds of traditional algorithm in time complexity on the theoretical analysis and comparison, this method under the condition of wide field echo sparse has significant efficiency advantages.
9910 经过多场景的仿真分析表明,该算法的处理效能显著高于传统算法,且对复杂动态场景具有较好的鲁棒性。 Through multiple scenarios simulation analysis shows that the treatment efficiency of the algorithm is significantly higher than the traditional algorithm, and the complicated dynamic scene has good robustness.
9911 发射频率和孔径二维随机稀疏的调频步进信号,可降低雷达系统对采样率的要求,同时可提高抗干扰能力。 Transmission frequency, and two-dimensional random sparse aperture stepped frequency modulated signal, can reduce the requirement of radar system of sampling rate, at the same time can improve the anti-interference ability.
9912 但是调频步进信号随机稀疏时会带来运动补偿困难的问题。 ‭But when they stepped frequency modulated signal sparse random motion compensation difficult problem.
9913 针对此问题,提出一种基于全局最小熵的运动补偿方法。 ‭Aiming at this problem, put forward a motion compensation method based on global minimum entropy.