TY - GEN
T1 - A low-complexity Nyström-Based algorithm for array subspace estimation
AU - Qian, Cheng
AU - Huang, Lei
PY - 2012/12/1
Y1 - 2012/12/1
N2 - Conventional subspace estimation methods rely on the eigenvalue decomposition (EVD) of sample covariance matrix (SCM). For a large array, the EVD-based algorithms inevitably lead to heavy computational load due to the calculation of SCM and its EVD. To circumvent this problem, a Nyström-Based algorithm for subspace estimation is proposed in this paper. In particular, we construct a rank-κ EVD method to find the signal subspace without the computation of SCM and its EVD, leading to computational simplicity. Statistical analysis and simulation results show that the devised algorithm for signal subspace estimation is computationally simple.
AB - Conventional subspace estimation methods rely on the eigenvalue decomposition (EVD) of sample covariance matrix (SCM). For a large array, the EVD-based algorithms inevitably lead to heavy computational load due to the calculation of SCM and its EVD. To circumvent this problem, a Nyström-Based algorithm for subspace estimation is proposed in this paper. In particular, we construct a rank-κ EVD method to find the signal subspace without the computation of SCM and its EVD, leading to computational simplicity. Statistical analysis and simulation results show that the devised algorithm for signal subspace estimation is computationally simple.
KW - Eigenvalue decomposition
KW - Low-complexity
KW - Sample covariance matrix
KW - Signal subspace
UR - http://www.scopus.com/inward/record.url?scp=84874427651&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874427651&partnerID=8YFLogxK
U2 - 10.1109/IMCCC.2012.33
DO - 10.1109/IMCCC.2012.33
M3 - Conference contribution
AN - SCOPUS:84874427651
SN - 9780769549354
T3 - Proceedings of the 2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012
SP - 112
EP - 114
BT - Proceedings of the 2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012
T2 - 2012 2nd International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2012
Y2 - 8 December 2012 through 10 December 2012
ER -