GSC 기반 빔포밍의 성능 향상을 위한 다중 신호 분류기법을 이용한 적응 모드 제어기

A new adaptation mode control method using the multiple signal classification (MUSIC) algorithm is proposed. The MUSIC algorithm is used to calculate the spatial spectral response to the direction of the target source with noisy inputs. Then, the statistical distribution of the MUSIC output is analyzed and used to model the target signal presence probability. Using the probability, the filter adaptation mode of a multiple input canceller in a generalized sidelobe canceller is controlled. For performance evaluation, SNR improvements and receiver operating curves are measured and the results show that the proposed algorithm noticeably outperforms other conventional adaptation mode controllers.