Enhanced DOA Estimation Exploiting Multi-Frequency Sparse Array - Zhang, Shuimei; Ahmed, Ammar; Zhang, Yimin D.; Sun, Shunqiao (IEEE transactions on signal processing, 2021)
Keywords: Array interpolation; Array signal processing; Arrays; Correlation; Correlation analysis; Direction of arrival; Direction-of-arrival estimation; Estimation; group sparsity; Interpolation; multi-frequency sparse array; Redundancy; Sensor arrays; Sparse matrices; zero lag redundancy