CAJ | 학술논문

针对空间相干信源的波达方向估计问题，提出了一种基于协方差矩阵重构的TSVD-ESPRIT算法。它利用包含所有信源信息的特征向量构造Toeplitz协方差矩阵，避免了阵列有效孔径的损失，分辨率高且稳定性好；并且利用ESPRIT算法代替MUSIC算法进行DOA估计，避免了谱峰搜索，大大降低了计算量。数据仿真和分析证明了该算法的正确性和有效性。
침대공간상간신원적파체방향고계문제，제출료일충기우협방차구진중구적TSVD-ESPRIT산법。타이용포함소유신원신식적특정향량구조Toeplitz협방차구진，피면료진렬유효공경적손실，분변솔고차은정성호；병차이용ESPRIT산법대체MUSIC산법진행DOA고계，피면료보봉수색，대대강저료계산량。수거방진화분석증명료해산법적정학성화유효성。
For the direction of arrival (DOA) of coherent signals, a new algorithm based on covariance matrix reconstruction named TSV-ESPRIT was proposed. The signal eigenvectors including the direction information of all sources was used to construct the Toeplitz covariance matrix. This construction method is without reducing the array aperture and increase esti?mation resolution and stability. The estimation of signal parameter via rotational invariance techniques (ESPRIT) instead of multiple signal classification (MUSIC) was used to avoid the peek searching and reduce the computational complexity. Sim?ulation results and analysis proved the validity and effectiveness of the algorithm.