Niu De-Zhi, Chen Chang-Xing, Ban Fei, Xu Hao-Xiang, Li Yong-Bin, Wang Zhuo, Ren Xiao-Yue, Chen Qiang. Blind angle elimination method in weak signal detection with Duffing oscillator and construction of detection statisticsJ. Acta Physica Sinica, 2015, 64(6): 060503. DOI: 10.7498/aps.64.060503