A Unitary Method for the ESPRIT Direction-of-Arrival Estimation Algorithm
Van Loan, Charles
ESPRIT is an interesting new method for solving the Direction-of-Arrival estimation problem. It involves some rather tricky matrix manipulations. We show how these calculations can be carried out using only unitary transformations of the data. No inverses or cross-products are required making the new method extremely robust.
computer science; technical report
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