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基于改进迭代FFT算法的均匀线阵交错稀疏布阵方法

李龙军 王布宏 夏春和

李龙军, 王布宏, 夏春和. 基于改进迭代FFT算法的均匀线阵交错稀疏布阵方法[J]. 电子与信息学报, 2016, 38(4): 970-977. doi: 10.11999/JEIT 150749
引用本文: 李龙军, 王布宏, 夏春和. 基于改进迭代FFT算法的均匀线阵交错稀疏布阵方法[J]. 电子与信息学报, 2016, 38(4): 970-977. doi: 10.11999/JEIT 150749
LI Longjun, WANG Buhong, XIA Chunhe. Interleaved Thinned Linear Arrays Based on Modified Iterative FFT Technique[J]. Journal of Electronics & Information Technology, 2016, 38(4): 970-977. doi: 10.11999/JEIT 150749
Citation: LI Longjun, WANG Buhong, XIA Chunhe. Interleaved Thinned Linear Arrays Based on Modified Iterative FFT Technique[J]. Journal of Electronics & Information Technology, 2016, 38(4): 970-977. doi: 10.11999/JEIT 150749

基于改进迭代FFT算法的均匀线阵交错稀疏布阵方法

doi: 10.11999/JEIT 150749
基金项目: 

国家自然科学基金项目(61172148)

Interleaved Thinned Linear Arrays Based on Modified Iterative FFT Technique

Funds: 

The National Natural Science Foundation of China (61172148)

  • 摘要: 基于孔径空分复用的共享孔径交错稀疏布阵是实现机载多功能天线的有效途径。该文提出一种基于改进迭代FFT算法的均匀线阵交错稀疏布阵方法。基于均匀线阵天线激励与方向图的傅里叶变换关系,通过对目标方向图采样的频谱分析,采用交叉选取子阵激励的方法对子阵单元进行稀疏优化布阵,实现了子阵频谱能量的均匀分配,确保了交错稀疏子阵方向图的一致性。在此基础上采用迭代FFT算法对稀疏交错子阵进行联合优化。理论分析与仿真实验表明,相对于基于差集及遗传算法的稀疏交错优化方法,该算法通过较少次数的迭代,可以实现等稀疏率和方向图近似一致的交错稀疏布阵,而且可以获得更低的副瓣电平。
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出版历程
  • 收稿日期:  2015-06-24
  • 修回日期:  2015-11-27
  • 刊出日期:  2016-04-19

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