Joint DOA Estimation and Phase Calibration of Linear Equispaced (LES) Arrays

Marilynn P. Wylie, Sumit Roy, Hagit Messer

Research output: Contribution to journalArticlepeer-review


The important problem of self-calibration of phased arrays for unknown phase errors in conjunction with their use in high-resolution direction of arrival (DOA) estimation is addressed. We consider the canonical (and widely used) linear equispaced (LES) array with a constant but unknown phase response and develop an algorithm that does not require any a priori knowledge of the direction of arrival of a signal. Analytical results are presented regarding estimator performance that are verified by a representative body of simulations. In addition, estimator performance is compared with a constrained Cramér-Rao lower bound (CRLB).

Original languageEnglish
Pages (from-to)3449-3459
Number of pages11
JournalIEEE Transactions on Signal Processing
Issue number12
StatePublished - Dec 1994
Externally publishedYes

Bibliographical note

Funding Information:
Manuscript received November 14, 1992; revised May 3, 1994. This work was supported by an NSF Graduate Fellowship. The associate editor coordinating the review of this paper and approving it for publication was Prof. Douglas Williams. M. Wylie and S. Roy are with the Department of Electrical Engineering, University of Pennsylvania, Philadelphia, PA 19 104 USA. H. Messer is with the Department of Electrical Engineering-Systems, Tel Aviv University, Tel Aviv, Israel. IEEE Log Number 9406026.


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