A study of the rank-ambiguity issues in direction-of-arrival estimation. - Kah-Chye Tan; Say Song Goh; Eng-Chye Tan (IEEE Trans. Signal Process., 1996)

Counterexamples to a conjecture for characterizing higher rank ambiguities. - Kah-Chye Tan; Eng-Chye Tan; Say Song Goh (IEEE Trans. Signal Process., 1996)