Table 3 Results with estimated DOAs in terms of the difference compared to the oracle DOA results displayed in Table 2. Here, the numbers printed in bold indicate when there is the most significant deterioration. Because K=D+1 direction-based components are used, DOA errors here have an impact on the results regardless of the choice of STAs and initialization. On the other hand, based on the minor differences between the rows, we conclude that the incorporation of DOA-based a priori knowledge is quite robust to DOA errors
