Quaternion ESPRIT for Direction Finding with a Polarization Sentive Array

摘要：

The problem of direction of arrival (DOA) estimation with a crossed-dipole array is addressed within the quaternionic framework,and a new ESPRIT variant,termed as quaternion-ESPRIT (Q-ESPRIT),is proposed.The proposed algorithm arranges the recorded signals into a quarternion model,and estimates the signal subspace of an array of translational invariance structure via quaternionic low-rank approximation.Then,Q-ESPRIT exploits the underlying rotational invariance between signal subspaces of different subarrays with quaternionic matrix operations to obtain the ultimate DOA estimates.Simulations show that QESPRIT significantly outperforms its conventional counterpart in difficult situations with short data length,low signal-to-noise ratio,or unknown model errors.

关键词： Polarization quaternion DOA array signal processing

作者: Xiaofeng Gong Yougen Xu Zhiwen Liu

作者单位: Department of Electronic Engineering,Beijing Institute of Technology,Beijing,100081

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）