Min Lin 0001 Ling-Ling Cao Jian Ouyang Wei Shi Kang An 0001 DOA estimation using virtual array technique for noncirlular signals. 1-5 2012 WCSP https://doi.org/10.1109/WCSP.2012.6542875 conf/wcsp/2012 db/conf/wcsp/wcsp2012.html#LinCOSA12