1. Juncheng Guo. A study on sound source localizationtechnology based on microphone Array. MS., Nanjing University of Aeronautics and Astronautics, China, Mar. 2007, p.28-30.
2. The generalized co relation method for estimation of time delay;Knapp;IEEE Transactions on Acoustics, Speech and Signal Processing,1976
3. The progress of acoustic emission testing technique;Guanghai;Journal of Nanchang Institute of Aeronautical Technoloage, China,2001
4. Junling Li. Study on the application of AE techniques in risk prediction of coal and gas outburst. Ph.D., Xian university of science and technology, China, June 2009, p. 36-41.
5. An improved time-delay estimation algorithm for acoustic detection and location;Shaojie Sun;Journal of Computer Applications, China,2006