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Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers (1994)
Pacific Grove, CA, USA
Oct. 31, 1994 to Nov. 2, 1994
ISSN: 1058-6393
ISBN: 0-8186-6405-3
pp: 612-616
Zuqiang Fu , Erik Jonsson Sch. of Eng. & Comput. Sci., Texas Univ., Richardson, TX, USA
E.M. Dowling , Erik Jonsson Sch. of Eng. & Comput. Sci., Texas Univ., Richardson, TX, USA
ABSTRACT
We present a conjugate gradient subspace projection algorithm for subspace tracking. We base the algorithm on the subspace projection cost function introduced by B. Yang (see IEEE ICASSP, p.IV145-IV148, 1993 ), and use a conjugate gradient iteration to provide rapid convergence. The update complexity is O(r/sup 2/m) where r is the dimension of the tracked subspace which is assumed to be much smaller than m. The algorithm has immediate application in radar and sonar array signal processing systems.<>
INDEX TERMS
tracking, array signal processing, sonar signal processing, radar signal processing, conjugate gradient methods, convergence of numerical methods, computational complexity
CITATION

Zuqiang Fu and E. Dowling, "Conjugate gradient projection subspace tracking," Proceedings of 1994 28th Asilomar Conference on Signals, Systems and Computers(ACSSC), Pacific Grove, CA, USA, 1995, pp. 612-616.
doi:10.1109/ACSSC.1994.471525
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