ID 原文 译文
18855 在被动毫米波 (PMMW) 成像焦平面阵列 (FPA) 馈源的天线中,直线渐变缝隙天线 (LTSA) 相对于传统的喇叭天线、介质棒天线具有其独特的优势。 Linear Tapered Slot Antennas (TSA) have significant advantages over traditional horn antennas,dielectric rod antenna when used as feed elements in Focal Plane Arrays (FPA) of Passive MilliMeterWave(PMMW) imaging.
18856 该文优化设计了一种新型的对跖直线渐变缝隙天线 (ALTSA),通过加载超材料结构使天线的增益得到了改善,天线采用基片集成波导 (SIW) 技术进行馈电。 In this paper, a novel Antipodal Linear Tapered Slot Antenna(ALTSA) is designedand optimized. The proposed antenna, the gain of which is improved by loading metamaterial structure, is fedby the Substrate Integrated Waveguide(SIW).
18857 通过仿真与测试分析,该天线在较宽的频带内具有良好的阻抗特性、较低的副瓣电平及较高且平稳的增益, Simulation and measure analysis show that the good impedance characteristics, low sidelobe levels, high and smooth gain are all achieved in a wide frequency band.
18858 所设计的天线具有较小的口径宽度,在焦平面中易于组成较为密集的馈源阵列,以提高被动毫米波成像的空间分辨率。 Meanwhile, the designed antenna has a smaller aperture width and is easier to form a denser feed array in the focal plane to improve the spatial resolution of passive millimeter wave imaging.
18859 针对暗通道先验去雾算法的不足,如天空区域透射率估计过小和在景深突变处易发生光晕效应,该文提出一种新颖且高效的去雾算法。 In view of shortcomings of dark channel prior dehazing methods, such as transmission in sky areas is small and halo effects are prone to occur in the edges, this paper proposes a novel and efficient dehazing algorithm.
18860 首先通过几何分析建立雾图对应无雾图像暗通道图的平面扇形模型, Firstly, the fan-shaped model with dark channel map of haze-free image is established by geometric analysis.
18861 然后设定一种新型的高斯均值函数,对其标准差进行自适应处理,用以估计扇形模型的上下边界值, Then a new Gaussian mean function is set to estimate the boundary values of the model and its standard deviation is adaptive processing.
18862 通过引入均值不等关系对两侧边界进行逼近,拟合出最优无雾图像暗通道图,进一步求得最佳透射率,同时也改进局部大气光的探索方法并复原出最终结果。 Mean-value unequal relationship is also introduced to approximatethe two-sided boundary, which is used to fit the most excellent dark channel map of haze-free, further obtainsthe best transmission. At the same time the local atmospheric light is improved to recover the final result.
18863 实验表明,与其它一些经典算法相比较,所提算法能广泛适用于各类图像,去雾程度彻底且效果清晰自然,具有较低的时间复杂度,有利于实时处理。 Experimental results show that the proposed method can be widely applied to all kinds of images compared with other classical algorithms. The degree of dehazing is thorough, final result is clear and natural. Moreimportantly, it is favorable for real-time processing that has low time complexity.
18864 合理高效地优化调度救灾物资对提升地震应急救援效果具有重要意义。 It is of great significance to optimize emergency resource schedule for earthquake emergency rescue.