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The robust acoustic microphone array beamformer is a relatively new instrument used in noisy environments to highlight a single sound source, like noise, interferences, reverberations etc. This paper ...proposes a robust uniform circular array (UCA) system with noise and interference sources. Compared to Frost with Optimal Diagonal Loading (ODL) and Frost with Fixed Diagonal Loading (FDL), both the FDL Frost and the ODL Frost experience performance drops in the look direction error. This model also provides adaptability against mismatch of arrival path by the suggested robust diagonal loading strategies, Frost with Variable Diagonal Loading (VDL) and Frost with New Variable Loading (NVL). The suggested robust beamformers can provide a high array gain and improved SINR in addition to being adaptive to the error of look direction. The frost with NVL gives the highest array gain among all the robust beamforming techniques. The proposed model uses MATLAB simulation.続きを見る
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