A Modified Fast Approximated Power Iteration Subspace Tracking Method for Space-Time Adaptive Processing

Autor: Yang Zhiwei, He Shun, Liao Guisheng, Ouyang Shan
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Journal of Electrical and Computer Engineering, Vol 2010 (2010)
Druh dokumentu: article
ISSN: 2090-0147
2090-0155
DOI: 10.1155/2010/973718
Popis: We propose a subspace-tracking-based space-time adaptive processing technique for airborne radar applications. By applying a modified approximated power iteration subspace tracing algorithm, the principal subspace in which the clutter-plus-interference reside is estimated. Therefore, the moving targets are detected by projecting the data on the minor subspace which is orthogonal to the principal subspace. The proposed approach overcomes the shortcomings of the existing methods and has satisfactory performance. Simulation results confirm that the performance improvement is achieved at very small secondary sample support, a feature that is particularly attractive for applications in heterogeneous environments.
Databáze: Directory of Open Access Journals