On the Cramer Rao bound for direction finding of correlated signals

Anthony J. Weiss, Benjamin Friedlander

Research output: Contribution to journalConference articlepeer-review


The authors present compact closed-form formulas for the Cramer-Rao bound corresponding to the joint estimation of the directions-of-arrival, the signal covariance matrix, and the noise variance. Using these formulas the authors investigate the effect of signal correlation on the achievable accuracy of direction finding systems in a correlated signal environment. As expected, estimation accuracy decreases with increasing correlation magnitude. Correlation phase has a strong effect on DOA estimation accuracy under certain conditions (small aperture, high correlation magnitude).

Original languageEnglish
Pages (from-to)941-945
Number of pages5
JournalConference Record - Asilomar Conference on Circuits, Systems & Computers
StatePublished - 1991
Event24th Asilomar Conference on Signals, Systems and Computers Part 2 (of 2) - Pacific Grove, CA, USA
Duration: 5 Nov 19907 Nov 1990


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