參考文獻 

[1] Hong-Guang Ma, Xiao-Fei Zhu, Jian-Feng Xu and Ming-Shun Ai, Circuit state analysis using chaotic signal excitation, Journal of the Franklin Institute, In Press, Corrected Proof, Available online 5 July 2007

[2] Eduardo Romero, Gabriela Peretti, Gloria Huertas and Diego Vázquez, Test of switched-capacitor ladder filters using OBT, Microelectronics Journal, Volume 36, Issue 12, December 2005, Pages 1073-1079

[3] D. Gordon E. Robertson and James J. Dowling, Design and responses of Butterworth and critically damped digital filters, Journal of Electromyography and Kinesiology, Volume 13, Issue 6, December 2003, Pages 569-573

[4]  G. Alarcon, C. N. Guy and C. D. Binnie, A simple algorithm for a digital three-pole Butterworth filter of arbitrary cut-off frequency: application to digital electroencephalography, Journal of Neuroscience Methods, Volume 104, Issue 1, 15 December 2000, Pages 35-44

[5] 訊號與系統,洪維堯等譯,全華圖書公司

[6] MATLAB 7在工程上的應用,王晉中等譯,高立圖書公司