首页> 外文期刊>International journal of numerical modelling >Combination of differential evolution algorithm and fast fourier transform for synthesis of footprint patterns from rectangular planar array
【24h】

Combination of differential evolution algorithm and fast fourier transform for synthesis of footprint patterns from rectangular planar array

机译:差分进化算法与快速傅立叶变换相结合,从矩形平面阵列中合成足迹图形

获取原文
获取原文并翻译 | 示例
           

摘要

An FFT-based footprint pattern synthesis from a rectangular planar array of isotropic antennas by modifying the amplitude, phase and the state ('on'/'off) of the array elements using differential evolution algorithm has been presented. Three different footprints of rectangular, square and circular boundaries are generated from the array while maintaining a satisfactory lower peak sidelobe level and ripple. The method greatly reduces the computational time than the conventional method of calculating beam patterns. The dynamic range ratio of the excitation amplitudes are kept below a threshold level to reduce the design complexity of the attenuators at the feed network level and to minimize the effect of mutual coupling among the array elements.
机译:提出了一种通过使用差分进化算法,通过改变阵列元件的幅度,相位和状态(“开” /“关”),从各向同性天线的矩形平面阵列中合成基于FFT的足迹模式的方法。在保持令人满意的较低峰值旁瓣电平和纹波的同时,从阵列生成了三种不同的矩形,正方形和圆形边界的覆盖区。与传统的计算光束方向图的方法相比,该方法大大减少了计算时间。激励幅度的动态范围比保持在阈值水平以下,以降低馈电网络级的衰减器的设计复杂度,并使阵列元件之间相互耦合的影响最小化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号