基于改進迭代FFT算法的均勻線陣交錯稀疏布陣方法

李龍軍; 王布宏; 夏春和

doi:10.11999/JEIT 150749

基于改進迭代FFT算法的均勻線陣交錯稀疏布陣方法

doi: 10.11999/JEIT 150749 cstr: 32379.14.JEIT 150749

2.
(空軍工程大學信息與導航學院西安 710077) ②(北京航空航天大學北京 100191)

基金項目:

國家自然科學基金項目(61172148)

計量
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- 被引次數(shù): 0
出版歷程
- 收稿日期: 2015-06-24
- 修回日期: 2015-11-27
- 刊出日期: 2016-04-19

Interleaved Thinned Linear Arrays Based on Modified Iterative FFT Technique

2.
(School of Information and Navigation, Air Force Engineering University, Xi&rsquo

Funds:

The National Natural Science Foundation of China (61172148)

摘要

摘要: 基于孔徑空分復用的共享孔徑交錯稀疏布陣是實現(xiàn)機載多功能天線的有效途徑。該文提出一種基于改進迭代FFT算法的均勻線陣交錯稀疏布陣方法?；诰鶆蚓€陣天線激勵與方向圖的傅里葉變換關系，通過對目標方向圖采樣的頻譜分析，采用交叉選取子陣激勵的方法對子陣單元進行稀疏優(yōu)化布陣，實現(xiàn)了子陣頻譜能量的均勻分配，確保了交錯稀疏子陣方向圖的一致性。在此基礎上采用迭代FFT算法對稀疏交錯子陣進行聯(lián)合優(yōu)化。理論分析與仿真實驗表明，相對于基于差集及遺傳算法的稀疏交錯優(yōu)化方法，該算法通過較少次數(shù)的迭代，可以實現(xiàn)等稀疏率和方向圖近似一致的交錯稀疏布陣，而且可以獲得更低的副瓣電平。
- 陣列天線 /
- 共享孔徑 /
- 稀疏交錯 /
- 迭代FFT /
- 副瓣電平
Abstract: Interleaved thinned arrays sharing aperture based on the aperture ratio of reuse is an effective way to realize airborne multifunction. A new method to interleave thinned linear arrays is proposed in this paper based on the modified Iterative Fast Fourier Transform (IFFT) algorithm. The sub-arrays spectrum energy distributed is achieved evenly by making the Fourier transform to linear array antennas excitation, analyzing the frequency spectrum and selecting the incentive crossly to ensure the positions of the thinned sub-array antennas. On this basis, the iterative FFT algorithm is adopted to thin the linear array. The simulations show that compare with the difference sets and the genetic algorithm, this technique can ensure the first subarray under the condition of thinned optimization, at the same time, the Peak Sidelobe Level (PSL) of the second subarray is similar to the first sub-array. It means that the new method is effective to restrain the side lobe levels and useful to interleaved array optimization.
- Array antenna /
- Shared aperture /
- Thinned interleaved /
- Iterative FFT /
- Sidelobe level

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參考文獻(21)

ZHONG Shunshi and SUN Zhu. Tri-band dual-polarization shared-aperture microstrip array for SAR application[J]. IEEE Transactions on Antennas and Propagation, 2012, 60(9): 4157-4165. doi: 10.1109/TAP.2012.2207034.

HAUPT R L. Interleaved thinned linear arrays[J]. IEEE Transactions on Antennas and Propagation, 2005, 53(9): 2858-2864. doi: 10.1109/TAP.2005.854522.

OLIVERI G and MASSA A. Fully interleaved linear arrays with predictable sidelobes based on almost difference sets[J]. IET Radar, sonar Navigation, 2010, 4(5): 649-661. doi: 10.1049/iet-rsn.2009.0186.

OLIVERI G and MASSA A. Genetic algorithm (GA)-enhanced almost difference set (ADS)-based approach for array thinning[J]. IET Microwaves Antennas Propagation, 2011, 52(3): 305-315. doi: 10.1049/iet-map.2010.0114.

NGUYEN T H, MORISHITA H, KOYANAGI Y, et al. A multi-level optimization method using PSO for the optimal design of an L-shaped folded monopole antenna array[J]. IEEE Transaction on Antennas and Propagation, 2014, 62(1): 206-215. doi: 10.1109/TAP.2013.2288785.

KHAN A A and BROWN A K. Null steering in irregularly spaced sparse antenna arrays using aperture distributed subarrays and hybrid optimizer[J]. IET Microwaves, Antennas Propagation, 2014, 8(2): 86-92. doi: 10.1049/ iet-map.2013.0214.

SU H, YONG B, and DU Q. Hyperspectral band selection using improved firefly algorithm [J]. IEEE Geoscience and Remote Sensing Letters, 2015, 99: 1-5. doi: 10.1109/LGRS. 2015.2497085.

KEIZER W P M N. Synthesis of thinned planar circular and square arrays using density tapering[J]. IEEE Transactions on Antennas and Propagation, 2014, 62(4): 1555-1563. doi: 10.1109/TAP.2013.2267194.

ZHANG Han, WU Yansong, ZHAO Sen, et al. Fine granularity optimal spare allocation and replacement in reconfiguration system[C]. 2013 Sixth International Conference on Advanced Computational Intelligence, Hangzhou, 2013: 177-182.

CAORSI S, LOMMI A, MASSA A, et al. Peak sidelobe level reduction with a hybrid approach based on GAs and difference sets [J]. IEEE Transactions on Antennas and Propagation, 2004, 52(4): 1116-1121. doi: 10.1109/ TAP.2004.825689.

HOU Qingsong, GUO Ying, and WANG Buhong. A novel method for analyzing sidelobe structure of nonuniform sparse linear array[C]. Proceedings of IET 2009 International Conference on Radar. Guilin, 2009: 1-4.

王停, 夏克文, 張文梅, 等. 基于改進QPSO算法的陣列天線方向圖綜合[J]. 電子學報, 2013, 41(6): 1177-1182. doi: 10.3969/j.issn.0372-2112.2013.06.020.

WANG Ting, XIA Kewen, ZHANG Wenmei, et al. Pattern synthesis of array antenna with modified quantum particle swarm optimization[J]. Acta Electronica Sinica, 2013, 41(6): 1177-1182. doi: 10.3969/j.issn.0372-2112.2013.06.020.

嚴韜, 陳建文, 鮑拯. 基于改進遺傳算法的天波超視距雷達二維陣列稀疏優(yōu)化設計[J]. 電子與信息學報, 2014, 36(12): 3014-3020. doi: 10.3724/SP.J.1146.2013.02011.

YAN Tao, CHEN Jianwen, and BAO Zheng. Optimization design of sparse 2-D arrays for over-the-horizon radar (OTHR) based on improved genetic algorithm[J]. Journal of Electronics Information Technology, 2014, 36(12): 3014-3020. doi: 10.3724/SP.J.1146.2013.02011.

KEIZER W P M N. Low-sidelobe pattern synthesis using iterative Fourier techniques coded in matlab[J]. IEEE Antennas and Propagation Magazine, 2009, 51(2): 137-150. doi: 10.1109/MAP.2009.5162038,

PLESSIS W P. Weighted thinned linear array design with the iterative FFT technique[J]. IEEE Transactions on Antennas and Propagation, 2011, 59(9): 3473-3477. doi: 10.1109/ TAP.2011.2161450.

薛正輝, 李偉明, 任武. 陣列天線分析與綜合[M]. 北京：北京航空航天大學出版社, 2011: 73-78.

XUE Zhenghui, LI Weiming, and REN Wu. The Analysis and Synthesis of Array Antenna[M]. Beijing: Beihang University Press, 2011: 73-78.

司偉建, 吳迪, 陳濤,等. 一種陣列互耦矩陣與波達方向的級聯(lián)估計方法[J]. 電子與信息學報, 2014, 36(7): 1599-1604. doi: 10.3724/SP.J.1146.2013.01330.

SI Weijian, WU Di, CHEN Tao, et al. Cascade estimation method of mutual coupling matrix and direction of arrival[J]. Journal of Electronics Information Technology, 2014, 36(7): 1599-1604. doi: 10.3724/SP.J.1146.2013.01330.

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