title: Simple analog correlator.
abstract: An analog correlator has been constructed using a delay unit which is realized by simulation of the sixth-order Pade approximated result of exp(-jomegatau) where j= radical-1, omega the angular frequency of the signals of concern, and tau the delay in seconds. Several sinusoidal signals and a noise spectrum have been autocorrelated with this correlator; also, it has been applied to determine the impulse response of an RC low-pass filter. Results are in good agreement with theoretical predictions. This correlator has been used to study low- frequency signals in the region 1-50 kHz.
authors.affiliation: Saha Institute of Nuclear Physics, Calcutta, India.
authors.forename: S K
authors.initials: SK
authors.lastname: Guharay
authors.forename: S K
authors.initials: SK
authors.lastname: Saha
authors.forename: S N
authors.initials: SN
authors.lastname: Sen Gupta
authors.forename: S K
authors.initials: SK
authors.lastname: Mukherjee