Journal of Electrical and Computer Engineering

Research Article

Underdetermined DOA Estimation via Independent Component Analysis and Time-Frequency Masking

Table 1

Mean absolute error in estimated DOAs (in degrees) obtained by the proposed algorithm and the previous algorithms when two microphones are used and three/four sources are present.
Algorithm Mean absolute error in estimated DOAs ( ∘ )
3 sources 4 sources
𝑠 1 ( 3 0 ∘ ) 𝑠 2 ( 7 0 ∘ ) 𝑠 3 ( 1 1 0 ∘ ) 𝑠 1 ( 3 0 ∘ ) 𝑠 2 ( 7 0 ∘ ) 𝑠 3 ( 1 1 0 ∘ ) 𝑠 4 ( 1 5 0 ∘ )
Algorithm 1 9.6 11.6 11.8 20.4 16.4 11.6 15.9
Algorithm 2 8.4 6.5 8.5 11.5 13.0 12.3 13.3
Proposed 6.1 4.2 3.6 8.7 5.3 4.4 6.5