Title :
Two methods for the construction of transfer functions of digital integrators
Author_Institution :
Czechoslovak Academy of Sciences, Institute of Radio Engineering & Electronics, Prague, Czechoslovakia
Abstract :
The letter describes two methods for the construction of digital-integrator transfer functions with an ideal phase characteristic. The first is based on the approximation of the function ln z by means of continued fractions, and the second consists in the approximation based on the principle of the impulse-response invariance. The transfer functions can be approximated to in both cases by nonrecursive transfer functions in the bilateral z transformation.
Keywords :
digital circuits; digital systems; integrating circuits; transfer functions; transforms; bilateral z transformation; construction of transfer functions; digital integrators; impulse response invariance; nonrecursive transfer functions; transfer function;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19710285
