Recursive Implementation of Gaussian Filters with Switching and Reset Hardware
2013 IEEE 56th International Midwest Symposium on Circuits and Systems (MWSCAS)
This paper suggests the use of linear programming and curve fitting to approximate Gaussian filters with a combination of recursive linear-phase exponential filters. The switching and reset method is used to create a stable implementation of an otherwise unstable pole-zero cancelation in the exponential filters. The results show that an accurate approximation of a Gaussian filter, of any order, can be recursively implemented using only 18 constant coefficient multipliers and 26 adders.
Khorbotly, Sami and Hassan, Firas, "Recursive Implementation of Gaussian Filters with Switching and Reset Hardware" (2013). Engineering Faculty Publications & Patents. Paper 29.
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