| 直线阵频带内的辐射和散射特性分析 |
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| 引用本文： | 凌劲,龚书喜,张帅,路宝,王兴.直线阵频带内的辐射和散射特性分析[J].宇航学报,2011,32(2):428-432. |
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| 作者姓名： | 凌劲 龚书喜 张帅 路宝 王兴 |
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| 作者单位： | 西安电子科技大学 天线与微波技术重点实验室，西安 710071 |
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| 摘 要： | 为降低阵列天线工作频带内的峰值副瓣电平(PSLL)和雷达散射截面(RCS)，提出利用混合优化算法IGA\|EDSPSO, 通过调整阵元间距优化辐射阵因子和散射阵因子，使其带内的辐射和散射特性得到改善。并采用渐近波形估计技术(AWE)结合矩量法(MoM)计算了线阵频带内的PSLL和RCS，考虑互耦后的结果更接近实际情况。与均匀直线阵相比，非均匀阵的PSLL在-17dB以下，RCS在绝大部分频点得到了很好地减缩，证明了此方法的有效性。
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| 关 键 词： | 混合优化算法 矩量法 副瓣抑制 雷达散射截面 |
| 收稿时间： | 2009-10-17 |
Analysis of Radiation and Scattering Characteristics of Linear Array in the Operating Band |
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| LING Jin,GONG Shu-xi,MANG Shuai,LU Bao,WANG Xing.Analysis of Radiation and Scattering Characteristics of Linear Array in the Operating Band[J].Journal of Astronautics,2011,32(2):428-432. |
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| Authors: | LING Jin GONG Shu-xi MANG Shuai LU Bao WANG Xing |
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| Institution: | LING Jin,GONG Shu-xi,ZHANG Shuai,LU Bao,WANG Xing(Science and Technology on Antennas and Microwave Laboratory,Xidian University,Xi'an 710071,China) |
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| Abstract: | To reduce the peak sidelobe level(PSLL) and the radar cross section(RCS) of array antennas in the operating band,an IGA-EDSPSO hybrid optimization algorithm is proposed to improve radiation and scattering characteristics by optimizing array radiation factor and array scattering factor.The PSLL and RCS in operating band are calculated by the method of moment(MoM) combined with the asymptotic waveform evaluation(AWE) technique.The results are closer to reality.Compared with the equally spaced array,PSLL of un... |
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| Keywords: | Hybrid optimization algorithm Method of moment(MoM) Asymptotic waveform evaluation(AWE) Sidelobe suppression Radar cross section |
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