Title :
Biquaternion beamspace for polarization estimation and direction finding
Author :
Jiang, Jingfei ; Li, Dan ; Zhang, JianQiu ; Hu, Bo ; Lu, Qiyong
Author_Institution :
Dept. of Electron. Eng., Fudan Univ., Shanghai, China
fDate :
Nov. 28 2011-Dec. 1 2011
Abstract :
A biquaternion beamspace, constructed by passing the original array data through a quaternion beamformer, is proposed in this paper. Based on our biquaternion beamspace theory, the reason why the existing biquaternion MUSIC (BQ-MUSIC) estimator is not able to estimate the sources´ polarization information is theoretically analyzed. From the analytical results, a new version of biquaternion beamspace MUSIC (BB-MUSIC) estimator is introduced to retrieve the sources´ polarization information as well as their direction angles. Simulation results are presented to verify the correctness and efficacy of the proposed method.
Keywords :
array signal processing; electromagnetic wave polarisation; radio direction-finding; signal classification; MUSIC; biquaternion beamspace; direction finding; polarization estimation; quaternion beamformer; Estimation; Multiple signal classification; Quaternions; Sensor arrays; Vectors;
Conference_Titel :
Sensing Technology (ICST), 2011 Fifth International Conference on
Conference_Location :
Palmerston North
Print_ISBN :
978-1-4577-0168-9
DOI :
10.1109/ICSensT.2011.6136987
