ID 原文 译文
47806 最后,通过实测验证了该方法的有效性。 Finally, the effectiveness of the proposed method is verified by the measured.
47807 实测结果表明,该方法在同步精度、同步时间及偏移误差上达到了较高的指标。 Measured results show that the proposed method in synchronous precision, synchronization time and offset error achieves a higher target.
47808 在稀疏子空间聚类算法的基础上,提出一种基于加权稀疏子空间聚类的图像分割方法。 In sparse subspace clustering algorithm, based on the proposed a weighted sparse subspace clustering based image segmentation method.
47809 利用加权的稀疏约束使得特征数据能够更好地被同一子空间内相似性高的特征数据线性表示,系数矩阵在类间更为稀疏。 Using weighted sparse constraint makes the feature data to be able to better the characteristics of the high similarity data within the same subspace linear, said more sparse coefficient matrix between the classes.
47810 实验表明,给出的加权稀疏子空间聚类方法对于干净数据和带噪声的数据都能得到较高的数据聚类准确率,对自然图像能够得到比较符合人眼视觉特性的分割结果。 Experiments show that the presented weighted sparse subspace clustering method for clean data and noise data can get high accuracy data clustering, for natural images can be compared with the human visual characteristics of segmentation result.
47811 以反舰制导雷达为背景,研究了宽带线性调频脉冲多普勒雷达的抗箔条干扰方法。 With anti-ship guidance radar as the background, study the wideband linear frequency modulation pulse doppler radar chaff interference method.
47812 首先建立了弹载宽带线性调频相参脉冲雷达的回波模型,推导了距离-多普勒二维像的形成过程;然后分析了宽带相参雷达舰船目标回波与箔条回波的区别,提出了回波距离-多普勒二维像扩展因子和能量均匀度两个特征指标对舰船和箔条进行区分;结合实际应用环境和箔条干扰的特点,设计了抗箔条干扰算法的判决准则,给出了抗箔条干扰算法的实现流程图;最后对实测数据的处理结果证明了抗箔条干扰方法的有效性。 Onboard was established by the wideband linear frequency modulation form radar echo model, deduced the distance - is the formation process of doppler image;And then analyzes the broadband coherent radar ship target echo and chaff echo difference, proposed the echo range - doppler two-dimensional as evenness factor and energy two characteristics index to distinguish between the ship and the chaff;Combined with the practical application environment and the characteristics of chaff jamming, the judgment criteria of chaff interference algorithm is designed, the realization of chaff interference algorithm flow chart;Finally, the measured data processing results show the effectiveness of the method of chaff interference.
47813 从矢量水听器和声压阵两个角度,研究了单个二维压差式矢量水听器的最小方差无失真响应(minimum variance distortionless response,MVDR)波束形成的优化技术。 From two angles of vector hydrophone and anchors, studies the single two-dimensional differential vector hydrophone, the minimum variance distortionless response (minimum variance distortionless response, MVDR) beamforming optimization techniques.
47814 针对压差式矢量水听器半径波长比大于0.1时,利用它进行方位估计性能恶化的问题,提出了一种修正的单个压差式矢量水听器MVDR波束形成处理方法。 Wavelength for differential pressure type vector hydrophone radius ratio greater than 0.1, using it to estimate direction of performance degradation problems, this paper proposes a modified single differential vector hydrophone MVDR beamforming method.
47815 仿真和湖上试验的结果表明:修正的压差式矢量水听器MVDR处理方法对阵元间距的变化具有更好的稳健性;在半径波长比小于0.1时具有更好的估计性能,在半径波长比大于0.1的一定范围内依然具有良好的方位估计能力。 Lake on the simulation and experiment results show that the modified differential vector hydrophone MVDR method distance change has better robustness against yuan;Radius of the wavelength has better estimation performance than when less than 0.1, the radius of wavelength than a certain range is greater than 0.1 still has a good ability of bearing estimation.