A new z-domain continued fraction expansion and its use in the generation of stable transfer functions [filter design applications]
V. Ramachandranl, Ling Luo, Christian S. Gargour · 2004
A new z-domain continued fraction expansion (CFE) of a digital reactance function has been formulated. It is based on the property of the reciprocal of differentiation and integration. The inversion of the CFE enables one to generate stable transfer function from which a desired filter can be designed.