The following publications are possibly variants of this publication:
- Subspace fitting via sparse representation of signal covariance for DOA estimationChundi Zheng, Gang Li, Youcai Li. icassp 2016: 3251-3255 [doi]
- Underdetermined DOA Estimation for Wideband Signals Using Robust Sparse Covariance FittingZhen-Qing He, Zhi-ping Shi, Lei Huang, Hing-Cheung So. spl, 22(4):435-439, 2015. [doi]
- Covariance sparsity-aware DOA estimation for nonuniform noiseZhen-Qing He, Zhi-ping Shi, Lei Huang. dsp, 28:75-81, 2014. [doi]