基于改進(jìn)GA-FFT綜合含互耦效應(yīng)的不等間隔陣列賦形方向圖

游鵬飛; 劉顏回; 黃鑫; 朱春輝; 柳清伙

doi:10.11999/JEIT151189

基于改進(jìn)GA-FFT綜合含互耦效應(yīng)的不等間隔陣列賦形方向圖

doi: 10.11999/JEIT151189

1.
(廈門大學(xué)電子科學(xué)系廈門 361005) ②(杜克大學(xué)電氣與計(jì)算機(jī)工程系達(dá)勒姆 27708)

基金項(xiàng)目:

國家自然科學(xué)基金(61301009)，中央高校基本科研業(yè)務(wù)費(fèi)(20720160081)

計(jì)量
- 文章訪問數(shù): 1694
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2015-10-29
- 修回日期: 2016-04-08
- 刊出日期: 2016-08-19

Modified GA-FFT for Synthesizing Shaped Pattern of Unequally Spaced Array in Presence of Mutual Coupling

1.
(Department of Electronic Science, Xiamen University, Xiamen 361005, China)
2.
(Department of Electrical and Computer Engineering, Duke University, Durham 27708, USA)

Funds:

The National Natural Science Foundation of China (61301009), The Fundamental Research Funds for the Central Universities (20720160081)

摘要

摘要: 該文提出了一種虛擬的最小均方有源單元方向圖展開方法，將不等間隔陣列的有源方向圖展開為一個(gè)虛擬的均勻間隔陣列的若干單元輻射的疊加。通過該方法，對(duì)包含陣元耦合效應(yīng)的不等間隔陣列方向圖，可以使用快速傅里葉變換進(jìn)行加速計(jì)算。并且，該文將這個(gè)方法與遺傳算法(GA)相結(jié)合，得到一種改進(jìn)的GA-FFT方法，可以應(yīng)用于解決含陣元互耦的不均勻間隔陣列的賦形波束綜合問題。最后，分別對(duì)不等間隔的偶極子陣列平頂方向圖及微帶陣列的余割平方方向圖進(jìn)行了綜合，結(jié)果表明所提方法的有效性和優(yōu)勢(shì)。
- 不等間隔陣列 /
- 陣元互耦 /
- FFT /
- 波束賦形
Abstract: A new Virtual Least-Square Active Element Pattern Expansion (VLS-AEPE) method is presented in this paper, which considers each active element pattern of an unequally spaced array as the one radiated by some of equally spaced elements of a virtual array. Using the help of this method, the pattern of an unequally spaced array including mutual coupling can be efficiently calculated by FFT. In addition, this method is combined with the Genetic Algorithm (GA) to deal with the shaped pattern synthesis problem for unequally spaced linear arrays. Two synthesis experiments including the synthesis of flat-top pattern for an unequally spaced dipole array and the synthesis of cosec-squared pattern for an unequally spaced microstrip array are conducted to verify the effectiveness and advantages of the proposed algorithm.
- Unequally spaced linear array /
- Element mutual coupling /
- FFT /
- Shaped pattern synthesis

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參考文獻(xiàn)(18)

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