A precise bearing estimation method of digital split-beam array system. - Qihu Li (ICASSP, 1986)

The performance of the optimum array filter for sensor arrays. - Qihu Li (ICASSP, 1987)

A new tone conversion method for Mandarin by an adaptive linear prediction analysis. - Congxiu Wang; Qihu Li; Guoying Zhao 007; Li Yin; Shuai Hao; Da Meng (INTERSPEECH, 2000)