关键词: 动目标, 信号波达方向估计, 子空间跟踪

Abstract: In reality, the receiving antenna and the radiation sources are commonly found relatively moving, and the performance of traditional high-resolution algorithm will be severely curtailed. An adaptive Direction of Arrival (DOA) estimation algorithm based on fast and stable subspace tracking method was proposed for the above issues. And ESPRIT algorithm was adopted to estimate the DOA without eigen decomposition, thus the novel algorithm has lower computational complexity than the conventional algorithms. The simulation results show that, compared with the power iteration method based DOA estimation algorithm, the proposed algorithm possesses better estimation performance.

Key words: moving target, Direction of Arrival (DOA) estimation, subspace tracking