自行研制的复合阵列天线具有增益高、方向性图尖锐、抗干扰能力强的特点。
The composite arrayed antenna has the characteristics of high gain, sharp directionality and strong anti disturbance ability.
采用口径场绕射积分求取了天线的近场及远场方向图，绘制了波束宽度、方向性和最大副瓣电平三个关键参数随场点距离的关系曲线。
Three key parameters, namely beamwidth, directivity and maximum sidelobe level, are drawn versus the distance between field points and the center of aperture.
实验表明，多层前传神经网络模型可以有效地对天线的方向性图进行建模，可用于天线的计算机辅助设计（CAD） 。
The experiments show that the multi_layer feed forward neural networks can model the radiation patterns of the antennas efficiently and are suitable for the CAD of antennas.
导出了用天线方向图的半功率波束宽度快速计算口径天线方向性系数和增益的简单表达式，分析讨论了这些公式的应用范围。
The simple formulae of fast calculating aperture antenna directivity and gain are derived using antenna beamwidths. Applied range of these formulae are analyzed and discussed.
采用遗传算法来优化单脉冲阵列天线的和、差方向图和方向性系数。
The sum and difference patterns as well as the directivity of the monopulse antenna arrays are optimized based on genetic algorithms (GA).
采用遗传算法来优化单脉冲阵列天线的和、差方向图和方向性系数。
The sum and difference patterns as well as the directivity of the monopulse antenna arrays are optimized based on genetic algorithms (GA).
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