Analysis and rejection of noises from partial discharge (PD) on-site testing environment - Xiaoning Wang; Deheng Zhu; Fuqi Li; Shengyou Gao (Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417), Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on, Properties and applications of dielectric materials, 2003)