Underdetermined DOA Estimation for Wideband Signals via Joint Sparse Signal Reconstruction Shi, Yunmei ; Mao, Xing-Peng ; Zhao, Chunlei ; Liu, Yong-Tan Abstract Publication: IEEE Signal Processing Letters Pub Date: October 2019 DOI: 10.1109/LSP.2019.2937381 Bibcode: 2019ISPL...26.1541S