A Frequency sampling filter design method which accounts for finite word length effects

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System functions of frequency sampling filters require pole-zero cancellations on the unit circle. For practical implementations, finite word length effects usually prevent pole-zero cancellations which can result in filter instability. The article develops an optimization method for designing a modified frequency sampling filter which is guaranteed to be stable.


Analogue-digital conversion; Analog-to-digital converters; Digital filters; Electric filters; Electric filters; Digital; Frequency response (Electrical engineering); Mathematical optimization; Optimisation; Poles and zeros; Program transformation (Computer programming); Stability; Transient response


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