ID 原文 译文
19955 该文提出一种描述弹头的钝头倒角锥模型,该模型将球冠散射中心和倒角散射中心看作是滑动散射中心,并引入锥体侧面遮挡效应对散射中心位置的影响,给出散射中心位置变化的一般形式; In this paper, the warhead is modeled by the blunt-nosed chamfered cone model, which regards the spherical center and the chamfer scattering centers as the sliding centers and takes the influence of the side of the cone into account, the general form of the position of the scattering centers is given based on the model.
19956 接着分析了钝头倒角锥模型各个散射中心的微动特性; Then, the micro-motion of the scattering centers in the blunt-nosed chamfered cone model is derived.
19957 在此基础上,提出了一种估计目标运动参数和结构参数的非线性优化的方法; Based on this, a nonlinear optimization method is proposed to estimate the target's motion parameters and structural parameters.
19958 最后,仿真结果验证了该文模型的正确性及参数估计方法的有效性。 Finally,simulation results verify the correctness of the model and the effectiveness of the parameter estimation method.
19959 得益于数字储频技术的快速发展,间歇采样转发干扰(ISRJ)得到广泛应用,现有抗干扰方法尚无法有效对抗此种干扰。 Benefiting from the rapid development of digital frequency storage technology, the Intermittent Sampling Repeater Jamming(ISRJ) is widely used. Existing radar anti-jamming means are hard to against this jamming effectively.
19960 在深入研究ISRJ的基础上,针对其时域采样不连续的特点,该文提出一种基于LFM分段脉冲压缩的抗间歇采样干扰方法。 Based on the analysis of the principles of the ISRJ, for the discontinuities of ISRJ in time domain, an anti-ISRJ method based on LFM segmented pulse compression is proposed.
19961 该方法利用LFM分段信号之间的正交性,结合掩护波形的思想,通过窄带滤波器组对干扰和目标进行分选,然后剔除干扰,最后在脉内和脉间进行积累。 This method utilizes the orthogonality between LFM segmented signals, combines with cover waveform concept, distinguishes jamming and target through narrow band filter group, then suppresses jamming, finally accumulates signals in intra-pulse and inter-pulse.
19962 理论分析和仿真结果表明,分段脉冲压缩方法能有效对抗多干扰机情况下不同样式的间歇采样干扰组合。 Theoretical analysis and experimental results show the anti-ISRJ method can effectively resist the intermittent sampling interference which combines with different styles of multiple jammers.
19963 该文提出一种基于Mann-Whitney秩和检验的无线局域网(WLAN)室内映射与定位方法。 The Mann-Whitney rank sum test based Wireless Local Area Network (WLAN) indoor mapping and localization approach is proposed.
19964 该方法首先根据实际定位精度需求对目标区域中的运动路径进行分段,同时基于Mann-Whitney秩和检验方法合并相似运动路径片段; Firstly, according to the localization accuracy requirement, this approach performs the motion paths segmentation in target area, and meanwhile merges the similar motion path segments based on the Mann-Whitney rank sum test.