Direction-of-arrival estimation based on direct data domain (D3) method

作者：Chen Hui^*; Huang Benxiong; Wang Yongliang; Hou Yaoqiong

来源：Journal of Systems Engineering and Electronics, 2009, 20(3): 512-518.

• direction-of-arrival estimation
• space-time two-dimensional DOA
• direct data domain
• de-correlation

A direction-of-arrival (DOA) estimation algorithm based on direct data domain (D3) approach is presented. This method can accuracy estimate DOA using one snapshot modified data, called the temporal and spatial two-dimensional vector reconstruction (TSR) method. The key idea is to apply the D3 approach which can extract the signal of given frequency but null out other frequency signals in temporal domain. Then the spatial vector reconstruction processing is used to estimate the angle of the spatial coherent signal source based on extract signal data. Compared with the common temporal and spatial processing approach, the TSR method has a lower computational load, higher real-time performance, robustness and angular accuracy of DOA. The proposed algorithm can be directly applied to the phased array radar of coherent pulses. Simulation results demonstrate the performance of the proposed technique.

• 出版日期2009-6
• 单位华中科技大学; 中国人民解放军空军预警学院