ID 原文 译文
21375 逆合成孔径雷达(ISAR)观测自旋目标时,自旋目标回波的距离-多普勒时变性会导致传统成像方法失效。 When using Inverse Synthetic Aperture Radar (ISAR) to observe the spinning targets, the range-Doppler time-varying characteristics of spinning target echo would lead to the inefficiency of traditional imaging methods.
21376 针对此问题,该文提出一种基于分布式匹配稀疏表示模型的宽带自旋目标快速高分辨成像方法。 To solve this problem, a fast high-resolution imaging method based on distributed matching sparse representation model is proposed for wideband spinning targets imaging.
21377 首先,通过自旋目标回波在距离频域表征出的稀疏性,构建分布式匹配稀疏表示模型; Firstly, a distributed matching sparse representation model is constructed based on the sparsity of spinning target echo.
21378 其次,研究快速分布式同步多正交匹配追踪算法,并通过减少算法总的迭代次数和每次迭代运算量来提高算法的重构效率,同时设计相关阈值抑制虚假重构散射点,实现鲁棒成像; Secondly, a Fast Distributed Simultaneous Multiple Orthogonal Matching Pursuit (FDSMOMP) algorithm is proposed for achieving the fast robust imaging of the spinning parts. The proposed algorithm can significantly improve the reconstruction efficiency by reducing the iteration times and computational complexity of each iteration. Additionally, in order to enhance the robustness of FDSMOMP, a related threshold is designed to suppress the false reconstruction.
21379 最后,从理论上分析该方法在欠采样及低信噪比条件下依然可获得高质量图像的机理。 Finally, the mechanism of the presented method is analyzed theoretically, and it is proved that the high quality imaging result can still be obtained under the conditions of sub-Nyquist sampling and lower (SNR Signal Noise Ratio).
21380 仿真结果证明了该方法的有效性。 Simulation results show the validation of the proposed method.
21381 低成本、可靠的动态目标定位方法成为目前研究的热点。 Recent researches show great interests in localizing dynamic objects through cost-effective technologies.
21382 传统的激光定位或视觉定位方法需要解决识别奇异性和环境遮挡等问题,射频识别(RFID)通过无线射频信号对特定目标进行识别,因此被广泛用于动态目标的定位。 Laser or visual-based approaches have to solve the singularity and occlusion problem from the environment. Radio Frequency IDentification (RFID) is used as a preferred technology to address these issues, due to the unique identification and the communication without line of sight.
21383 该文提出一种融合激光信息与RFID信息对动态目标快速定位的方法。 In this paper, an innovative method is proposed to localize precisely a dynamic object equipped with an RFID tag by fusing laser information RFID information.
21384 该方法利用粒子滤波器融合RFID信号强度、相位信息和激光数据。 A particle filter is used to fuse RFID signal strength, phase information, and laser ranging data.