@article{twolowcomplexitydoaestimatorsformassive,
  title = {Two Low-complexity DOA Estimators for Massive/Ultra-massive MIMO Receive Array},
  author = {YiWen Chen and Xichao Zhan and Feng Shu and Qijuan Jie and Xin Cheng and Zhihong Zhuang and Jiangzhou Wang},
  year = {2022},
  eprint = {2204.09411},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2204.09411v2},
}