Experimental array signal processing demonstration system by utilizing microphone array

Adaptive array signal processing is widely used in radar, communication, sonar, navigation and other signal processing applications. Practical experimental verification is important to evaluate the performance of array signal processing methods. However, the conventional experimental verification for adaptive array signal processing are often conducted with massive radio frequency equipments, which leads to high cost and huge complexity. Therefore, it is necessary to construct an experimental demonstration system with low cost and high flexibility, which can conveniently verify the performance of adaptive array signal processing methods. In this paper, an experimental adaptive array signal processing demonstration system by utilizing the microphone array is proposed, and corresponding experiments of DOA estimation and adaptive beamforming are conducted based on the proposed microphone array system in different environment. Compared with traditional radio frequency system, it is found that the designed system can reduce the experimental cost and complexity of adaptive array signal processing verification.