Design of OTA-C Gaussian Function Generator

Abstract:

A novel method for analogue VLSI implementation of programmable Gaussian function generator is proposed in this paper, in which the Gaussian function is approximated by the OTA-C filter whose frequency response is Gaussian-shaped. OTA-C circuit is very suitable for this application since the programmability can be controlled by the transconductance of OTA precisely and easily. Based on the probability argument, the OTA-C biquadratic filters and OTA-C integrator which have the cascade connection are used as the building block. To elaborate the construction procedure, a seventh-order OTA-C Gaussian function generator is selected as an example. The simulation results verify the feasibility of the presented approach.

• Periodical: Applied Mechanics and Materials (Volumes 182-183)
• Pages: 690-694
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.182-183.690
• Online since: June 2012
• Authors: Kun Gao
• Keywords: Filter Synthesis, Gaussian Function, OTA-C Filter, Signal Processing

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