Title :
The design and analysis of an analog ratio spectrum circuit
Author :
Deng, Liping ; Harris, John G.
Author_Institution :
Comput. Neuro-Eng. Lab., Florida Univ., Gainesville, FL, USA
Abstract :
The ratio spectrum (RS) is a novel method for signal analysis that has been successfully demonstrated for speech recognition and coding applications. In this paper, an improved RS circuit with an adaptive tenth-order Butterworth low-pass filter has been designed. We also present the first convergence analysis of the ratio spectrum. We derive linearized convergence expressions for the RS and compare the theoretical predictions to circuit simulations
Keywords :
Butterworth filters; active filters; adaptive filters; analogue processing circuits; convergence; low-pass filters; signal processing equipment; Butterworth low-pass filter; adaptive low-pass filter; analog ratio spectrum circuit; convergence analysis; signal analysis; tenth-order low-pass filter; Adaptive filters; Analog computers; Band pass filters; Circuit analysis computing; Circuit simulation; Convergence; Filter bank; Low pass filters; Speech processing; Transfer functions;
Conference_Titel :
Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6685-9
DOI :
10.1109/ISCAS.2001.921821
