Efficient method to determine diagonal loading value. - Ning Ma; Joo Thiam Goh (ICASSP (5), 2003)

DOA estimation for broadband chirp signals. - Ning Ma; Joo Thiam Goh (ICASSP (2), 2004)

Ambiguity-function-based techniques to estimate DOA of broadband chirp signals. - Ning Ma; Joo Thiam Goh (IEEE Trans. Signal Process., 2006)