Joint 2D Direction-of-Arrival and Range Estimation for Nonstationary Sources

Jian Chen, Hui Zhao, Xiaoying Sun, Guohong Liu
2014 International Journal of Antennas and Propagation  
Passive localization of nonstationary sources in the spherical coordinates (azimuth, elevation, and range) is considered, and a parallel factor analysis based method is addressed for the near-field parameter estimation problem. In this scheme, a parallel factor analysis model is firstly constructed by computing five time-frequency distribution matrices of the properly chosen observation data. In addition, the uniqueness of the constructed model is proved, and both the two-dimensional (2D)
more » ... ensional (2D) direction-of-arrival (DOA) and range can be jointly obtained via trilinear alternating least squares regression (TALS). The investigated algorithm is well suitable for near-field nonstationary source localization and does not require parameter-pairing or multidimensional search. Several simulation examples confirm the effectiveness of the proposed algorithm.
doi:10.1155/2014/849039 fatcat:axdnk3o365dcjgt5nwts52akia