CAJ | 학술논문

当阵列稀疏布置时，用DBF技术形成的波束常具有多个高副瓣增益，无法直接用于辐射源方向估计。针对此问题，本文提出波束簇组合印证测向算法。该算法先通过建立波束簇组合印证表，获得高副瓣响应位置和增益的先验信息。再根据波束簇的输出增益，查表综合逻辑判定信号波达方向。实验结果表明，该算法能有效的估计多个来波方向，且可获得较高的测角精度和角度分辨力。
당진렬희소포치시，용DBF기술형성적파속상구유다개고부판증익，무법직접용우복사원방향고계。침대차문제，본문제출파속족조합인증측향산법。해산법선통과건립파속족조합인증표，획득고부판향응위치화증익적선험신식。재근거파속족적수출증익，사표종합라집판정신호파체방향。실험결과표명，해산법능유효적고계다개래파방향，차가획득교고적측각정도화각도분변력。
When linear arrays are sparse arrangement,forming beam according to DBF technology often has multiple high sidelobe gain,which cannot be directly used to estimate the radiation direction.To solve this problem,a wideband clus-tered beam direction finding algorithm is proposed.In this algorithm,a clustered beam table is built which contains the pri-ori information about location and gain of the high sidelobes’response.Then according to the output gain of each beam the direction of arrival (DOA)is determined by looking-up the built table.Experimental results show that this algorithm can effectively estimate multiple DOA with high accuracy and resolution.