CAJ | 학술논문

基于有特殊阵列配置的单基地多输入多输出（MIMO）雷达，提出了一种用于多目标波迭方向（DOA）估计的虚拟阵列Toeplitz重构（VATR）算法。利用MIMO雷达发射信号的正交特性将阵列有效阵元数和孔径同时扩展，可估计更多的目标。研究表明：与发射分集平滑（TDS）和虚拟子阵平滑（VSS）算法相比，VATR算法有更强的阵元节省能力和更好的统计估计性能。仿真结果证明了VATR算法理论的正确性和有效性。
기우유특수진렬배치적단기지다수입다수출（MIMO）뢰체，제출료일충용우다목표파질방향（DOA）고계적허의진렬Toeplitz중구（VATR）산법。이용MIMO뢰체발사신호적정교특성장진렬유효진원수화공경동시확전，가고계경다적목표。연구표명：여발사분집평활（TDS）화허의자진평활（VSS）산법상비，VATR산법유경강적진원절성능력화경호적통계고계성능。방진결과증명료VATR산법이론적정학성화유효성。
A novel algorithm which was called virtual array toeplitz restructured （VATR）was proposed for multi-target DOA estimation based on monostatic MIMO radar with special array collocation in this paper. The numbers of sensors and effective aperture size were expanded by exploiting the orthogonal property of the transmitting signals of MIMO radar which could estimate more targets. The research was showed that the VATR algorithm would deal with more targets with using of less arrays and better statistic estimation performance than transmission diversity smoothing （TDS） and virtual subarrays smoothing （VSS） algorithm. The correctness and effectiveness of the proposed VATR method were verified by the simulation results.