TY - GEN
T1 - The effects of preprocessing on direction of arrival estimation
AU - Weiss, Anthony J.
AU - Friedlander, Benjamin
N1 - Publisher Copyright:
© 1993 IEEE
PY - 1993
Y1 - 1993
N2 - Numerous authors have advocated the use of preprocessing in high-resolution direction finding algorithms. The benefits cited include reduced computation, improved performance in spatially colored noise, and enhanced resolution. In this paper we derive the preprocessing matrices which provide minimum variance estimates for a number of models and algorithms. We then study the Cramer Rao Bound (CRB) for Gaussian signals, the CRB for deterministic signals, and the asymptotic variance of the MUSIC estimator, for the preprocessed data. The effect of array manifold errors on direction estimation accuracy is also examined.
AB - Numerous authors have advocated the use of preprocessing in high-resolution direction finding algorithms. The benefits cited include reduced computation, improved performance in spatially colored noise, and enhanced resolution. In this paper we derive the preprocessing matrices which provide minimum variance estimates for a number of models and algorithms. We then study the Cramer Rao Bound (CRB) for Gaussian signals, the CRB for deterministic signals, and the asymptotic variance of the MUSIC estimator, for the preprocessed data. The effect of array manifold errors on direction estimation accuracy is also examined.
UR - http://www.scopus.com/inward/record.url?scp=85117094966&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.1993.319715
DO - 10.1109/ICASSP.1993.319715
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AN - SCOPUS:85117094966
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 544
EP - 547
BT - IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1993 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1993
Y2 - 27 April 1993 through 30 April 1993
ER -