ID 原文 译文
8744 仿真结果表明,与文献算法相比,该算法具有更低的信噪比门限、更高的估计精度和理论最佳的估计范围。 The simulation results show that compared with the literature algorithm, the proposed algorithm has lower SNR threshold, higher estimation precision and the theory of optimal estimation range.
8745 算法数学模型稳健、复杂度低,具有很好的可实现性和很高的使用价值。 Low mathematical model for the steady, complexity and has the very good feasibility and high use value.
8746 多输入多输出(multiple input multiple output,MIMO)雷达可在接收端形成奈奎斯特虚拟阵列,大大扩展了接收阵列的有效孔径。 Multiple input multiple output (multiple input multiple output, MIMO) radar can be formed at the receiving end Nyquist virtual array, greatly expanded the receiving array aperture.
8747 文章讨论了在发射或接收阵列稀疏布阵的情况下,虚拟孔径MIMO雷达的测角精度和抗干扰性能。 Discussed in the paper the transmitting or receiving array under the condition of sparse disposal, virtual aperture Angle measuring accuracy and anti-interference performance of the MIMO radar.
8748 分析表明,得益于奈奎斯特虚拟孔径的形成,MIMO雷达可获得比传统相控阵雷达更窄的有效接收波束宽度和更高的测角精度。 Analysis shows that, thanks to the formation of the Nyquist virtual aperture, MIMO radar can obtain more effective than traditional phased array radar is more narrow receiving beam width and higher Angle measuring accuracy.
8749 对于转发干扰,较窄的接收波束宽度也使虚拟孔径MIMO雷达更容易规避主瓣干扰。 For forwarding interference, relatively narrow receive beam width and makes virtual aperture MIMO radar is easier to circumvent the main lobe interference.
8750 而对于非转发的压制干扰,MIMO雷达具有与相控阵一致的抗干扰性能。 And for the forward to suppress interference, MIMO radar anti-jamming performance is consistent with the phased array.
8751 此外,文章还讨论了将线性调频连续波(linear frequency modulated continuous wave,LFMCW)信号与虚拟孔径MIMO雷达相结合的可行性和性能优势。 In addition, the article also discussed the linear frequency modulation continuous wave (linear frequency modulated continuous wave, LFMCW) combined with a virtual aperture MIMO radar signal of the feasibility and performance advantages.
8752 重点研究了对椭圆轨道上非合作目标进行长期绕飞监测的相对运动轨道构型设计与构型保持问题。 Is mainly studied on the elliptical orbit non-cooperative target for long-term monitoring of relative motion orbit track configuration design and maintain.
8753 利用轨道要素法建立了适用于目标轨道为椭圆轨道的相对运动模型,推导了以目标为中心的周期性绕飞运动的必要条件; Using the orbital elements method established is suitable for the relative motion of the target track for elliptical orbit model, the equations of the periodic orbit centered on the target movement;