Title :
A pitch synchronous switched capacitor discrete Fourier transform circuit
Author :
Ogihara, Akio ; Yamashita, Shinsuke ; Yoneda, Shojiro
Author_Institution :
Coll. of Eng., Osaka Prefecture Univ., Sakai, Japan
Abstract :
A novel pitch-synchronous switched capacitor (SC) discrete Fourier transform (DFT) circuit suitable for high-speed spectral analysis is proposed. This circuit can analyze a harmonic signal synchronously with the pitch period of the signal, and it takes less than 0.2 ms to analyze 32 spectral components. Moreover, it is possible that all the proposed circuits can be integrated into one LSI package since they are constructed using the SC technique
Keywords :
Fourier transforms; large scale integration; linear integrated circuits; signal processing equipment; spectral analysis; switched capacitor networks; DFT; LSI package; discrete Fourier transform circuit; harmonic signal; high-speed spectral analysis; pitch period extraction; pitch synchronous switched capacitor; Discrete Fourier transforms; Equations; Frequency; Harmonic analysis; Large scale integration; Packaging; Signal analysis; Spectral analysis; Switched capacitor circuits; Switching circuits;
Conference_Titel :
Circuits and Systems, 1991., IEEE International Sympoisum on
Print_ISBN :
0-7803-0050-5
DOI :
10.1109/ISCAS.1991.176733
