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Table 1 The DOA estimation result of different frequency signal using two methods

From: Self-adapting root-MUSIC algorithm and its real-valued formulation for acoustic vector sensor array

Signal frequency Average of DOA estimation of MUSIC algorithm(°) Average of DOA estimation of self-adapting root-MUSIC algorithm(°)
331Hz 90.2768 90.0377
800Hz 89.7857 89.8085
1kHz 89.8571 89.8598
1.5kHz 89.8636 89.4449
3kHz 89.6324 89.7719