TY - GEN
T1 - Directions-of-arrival tracking of coherent cyclostationary signals without eigendecomposition
AU - Xin, Jingmin
AU - Tsuji, H.
AU - Ohmori, H.
AU - Sano, A.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - By exploiting the cyclostationarity exhibited by most communication signals, we propose a computationally efficient method for estimating the directions-of-arrival (DOA) of coherent narrowband signals impinging on a uniform linear array without eigendecomposition and spatial smoothing processes. An online implementation of this method is proposed for tracking the DOA of moving signals in a multipath propagation environment. In the proposed algorithm, a combination of the cyclostationarity and a subarray scheme are used to decorrelate the signal coherency and to suppress the noise and interfering signals, while the noise subspace is estimated from the resulting cyclic correlation matrix through a linear operation. As a result, the proposed algorithm has the advantages of computational simplicity and robust detection capability.
AB - By exploiting the cyclostationarity exhibited by most communication signals, we propose a computationally efficient method for estimating the directions-of-arrival (DOA) of coherent narrowband signals impinging on a uniform linear array without eigendecomposition and spatial smoothing processes. An online implementation of this method is proposed for tracking the DOA of moving signals in a multipath propagation environment. In the proposed algorithm, a combination of the cyclostationarity and a subarray scheme are used to decorrelate the signal coherency and to suppress the noise and interfering signals, while the noise subspace is estimated from the resulting cyclic correlation matrix through a linear operation. As a result, the proposed algorithm has the advantages of computational simplicity and robust detection capability.
KW - Array signal processing
KW - Covariance matrix
KW - Decorrelation
KW - Direction of arrival estimation
KW - Narrowband
KW - Sensor arrays
KW - Signal processing
KW - Signal processing algorithms
KW - Smoothing methods
KW - Working environment noise
UR - http://www.scopus.com/inward/record.url?scp=0141876788&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0141876788&partnerID=8YFLogxK
U2 - 10.1109/SPAWC.2001.923913
DO - 10.1109/SPAWC.2001.923913
M3 - Conference contribution
AN - SCOPUS:0141876788
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
SP - 318
EP - 321
BT - 2001 IEEE 3rd Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2001
Y2 - 20 March 2001 through 23 March 2001
ER -