Joint DOA, Range, and Polarization Estimation in the Fresnel Region
- 6 October 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. 47 (4), 2657-2672
- https://doi.org/10.1109/taes.2011.6034657
Abstract
A new algorithm of joint direction-of-arrival (DOA), range, and polarization estimation is proposed to localize multiple polarized sources in the Fresnel region. The algorithm is based on a sparse linear array composed of dual-polarization sensors with symmetric subarray partition. By the symmetric property of sparse linear array, the steering vector of the polarized array can be expressed as the product of a complex matrix with the signal's DOA and a complex matrix with the signal's range and a complex vector with the signal's polarization. A spectral rank reduction (RARE) algorithm is presented to estimate the DOA independent from the range and polarization. With each estimated DOA, the range of each source is accordingly estimated by defining the 1-D range RARE function. For each DOA and range of source, a MUSIC algorithm is finally adopted for the signal's polarization. The DOA and range identifiability of the proposed algorithm are discussed, and the range ambiguity issues caused by sparse linear array are analyzed. The proposed algorithm employs only second-order statistics and 1-D search so that its computational burden is reduced. The limitation of inter-element spacing (d ≤ λ/4) is overcome. By numerical examples, it is shown that the proposed algorithm can enhance the angle resolution even with the limited number of sensors.Keywords
This publication has 26 references indexed in Scilit:
- Partly-Filled Nonuniform Linear Arrays for DOA Estimation in Multipath SignalsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2007
- A Hybrid UCA-RARE/Root-MUSIC Approach for 2-D Direction of Arrival Estimation in Uniform Circular Arrays in the Presence of Mutual CouplingIEEE Transactions on Antennas and Propagation, 2007
- Sparse-periodic hybrid array beamformerIET Radar, Sonar & Navigation, 2007
- Rank reduction direction-of-arrival estimators with an improved robustness against subarray orientation errorsIEEE Transactions on Signal Processing, 2006
- DOA estimation and self-calibration algorithm for multiple subarrays in the presence of mutual couplingIEE Proceedings - Radar, Sonar and Navigation, 2006
- Third-Order Cyclic Moment Based DOA and Range Estimation of Near-Field SourcesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2006
- A dual isometric transformation for the determination of ambiguities in bearing estimationSignal Processing, 2001
- Closed-form eigenstructure-based direction finding using arbitrary but identical subarrays on a sparse uniform Cartesian array gridIEEE Transactions on Signal Processing, 2000
- Performance analysis of higher order ESPRIT for localization of near-field sourcesIEEE Transactions on Signal Processing, 1998
- Near-field multiple source localization by passive sensor arrayIEEE Transactions on Antennas and Propagation, 1991