CAJ | 학술논문

从稀疏信号重建角度提出了一种改进的波达方向（DOA）估计方法。由于最小冗余线阵（MRLA）能以较少的阵元数获得较大的阵列孔径，将MRLA与?1-SVD方法相结合估计信号的DOA。仿真结果表明，经多次实验验证，所提方法是有效的，相比?1-SVD方法可以估计出更多信源的DOA，并且可以用较少的阵元数估计更多的信源DOA，具有信源过载能力。
종희소신호중건각도제출료일충개진적파체방향（DOA）고계방법。유우최소용여선진（MRLA）능이교소적진원수획득교대적진렬공경，장MRLA여?1-SVD방법상결합고계신호적DOA。방진결과표명，경다차실험험증，소제방법시유효적，상비?1-SVD방법가이고계출경다신원적DOA，병차가이용교소적진원수고계경다적신원DOA，구유신원과재능력。
This paper proposes a modified Direction of Arrival(DOA)estimation method based on Minimum Redundancy Linear Array(MRLA)from the sparse signal reconstruction perspective. According to the structure feature of MRLA that obtaining larger antenna aperture through a smaller number of array sensors, MRLA is combined with ?1-SVD method to estimate signal DOAs. Simulations demonstrate that the proposed method is effective, and compared with ?1-SVD meth-od it can estimate more DOAs of signal source, and it is capable of estimating more DOAs with fewer antenna elements.