Bai Yun, Liu Xin-Yuan, He Ding-Wu, Ru Hong-Yu, Qi Liang, Ji Min-Biao, Zhao Wei, Xie Fei-Xiang, Nie Rui-Juan, Ma Ping, Dai Yuan-Dong, Wang Fu-Ren. Singular value decomposition and adaptive noise reduction for SQUID-based magnetocardiogramsJ. Acta Physica Sinica, 2006, 55(5): 2651-2656. DOI: 10.7498/aps.55.2651