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基于辅助阵元的二维波达方向估计算法 被引量:1

2-D DOA Estimation Algorithm Based on Auxiliary Sensor
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摘要 针对任意平面阵列,提出了一种基于辅助阵元的二维波达方向估计算法。首先利用附加的一个辅助阵元及信号的空、时域信息,构造时空旋转矩阵实现对仰角的分离估计,再利用得到的仰角信息通过一维搜索获取方位角。与传统基于子空间的二维波达方向估计算法相比,该方法不需要进行二维谱峰搜索与参数配对,对阵元的幅相误差具有较强的鲁棒性,并具有较高的角度分辨力,对阵元的利用率高,且能够应用于任意结构的平面阵。最后,计算机仿真结果验证了算法的有效性。 Based on auxiliary sensor,a 2-D DOA estimation algorithm is proposed for arbitrary planar array.By adding an auxiliary sensor and exploiting information of source in space-time domain,the space-time rotational matrix is formed to estimate elevation in advance.Thereby,the azimuth can be obtained by 1D search using the information of estimated elevation.Compared with the traditional 2-D DOA algorithm based on subspace,the algorithm does not require 2D searching and pair matching.It has high angular resolving ability,good robustness to the amplitude and phase error of sensor gain,and a high sensor utilization rate,and can be applied to arbitrary planar arrays.Simulation results show the validity of the algorithm.
作者 邓键敏 吴瑛
出处 《数据采集与处理》 CSCD 北大核心 2011年第3期269-274,共6页 Journal of Data Acquisition and Processing
关键词 阵列信号处理 二维波达方向估计 空时处理 辅助阵元 array signal processing 2-D DOA estimation space-time processing auxiliary sensor
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  • 1廖桂生,保铮.未知阵列流形条件下波达方向-多普勒频率盲估计方法[J].电子科学学刊,1997,19(2):152-157. 被引量:11
  • 2殷勤业.高分辨率波达方向估计(博士学位论文)[M].西安:交通大学研究生院,1989..
  • 3金梁.基于时空特征结构的阵列信号处理与智能天线技术研究(博士学位论文)[M].西安:交通大学研究生院,1999..
  • 4Michael D Zoltowski and Cherian P Mathews. Realtime frequency and 2-D angle estimation with subnyquist spatio-temporal sampling [J]. IEEE Trans.Signal Processing,1994,42(10) :2781~2794.
  • 5M Haardt and J A Nossek. 3-D ESPRIT for joint angle and carrierestimation[C], in Proc. ICASSP'97, April,Germany,pp. 255~258.
  • 6CLARK,M P and SCHARF,L L. Two-imermional modal analysis based on maximum likelihood[J]. IEEE Trans. SP , 1994,42 (6):1443~1452.
  • 7ERIKSSON, J. Aspects on parameter estimation and data reduction in doppler radar[R], no. 242L, Licentiate thesis, 1996 ,Goteborg,Sweden.
  • 8F Li and R Vaccaro. On frequency-wavenumber estimation by state-space realization [J]. IEEE Trans on CAS, 1991,38(3) : 800~ 804.
  • 9Y Hua. Estimating two-dimensional frequencies by matrix enhancement and matrix pencil[J]. IEEE Trans. on SP, 1992,40(9) :2267~2280.
  • 10Aweke N Lemma, Alle-Jan van der Veen and Ed F Deorettere. Joint angle-frequency estimation using multiresolution ESPRIT[C]. in Proc. ICASSP'98, May, vol.4 ,pp. 1957~1960 ,Seattle,WA.

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