中国电子科技集团公司第五十四研究所,河北 石家庄 050800
闫瑞涛(1992— ),男,工程师,从事激光相控阵领域研究。764528182@qq.com
收稿:2025-04-27,
修回:2025-08-21,
纸质出版:2026-03-20
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闫瑞涛,韩威,刘子龙.基于阵元方向图编辑的激光相控阵栅瓣抑制研究[J].光学技术,2026,52(02):129-134.
YAN Ruitao,HAN Wei,LIU Zilong.Research on grating lobe suppression in laser phased arrays based on element pattern editing[J].OPTICAL TECHNIQUE,2026,52(02):129-134.
激光通信、车载激光雷达、激光遥感成像等领域对激光快速指向提出了非常高的需求,激光相控阵作为一种电控扫描方式,具备快速指向,分辨率高的优势。文章提出了提出了一种基于阵元方向图编辑栅瓣抑制方法,解决激光相控阵栅瓣过高的问题。基于激光相控阵波束合成理论,调节每个合成阵元的方向图信息,打破阵列的周期性排布,仿真表明,采用3dB波束宽度分别为130°、30°以及1°三种阵元方向图随机布阵,可有效降低激光相控阵的栅瓣幅值。
Fields such as laser communication
vehicular lidar
and laser remote sensing imaging impose stringent requirements on rapid laser beam steering. As an electronically controlled scanning approach
laser phased arrays offer advantages including high-speed pointing and superior resolution. A grating lobe suppression method based on element pattern editing to address the issue of excessive grating lobes in laser phased arrays is proposed. Building upon the beam synthesis theory of laser phased arrays
the method adjusts the pattern information of each synthesized array element to disrupt the periodic arrangement of the array. Simulation results demonstrate that employing a randomized array configuration with three types of element patterns (featuring 3dB beam widths of 130°
30°
and 1° respectively) can effectively reduce the grating lobe amplitude in laser phased arrays.
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