A method of designing highpass digital filters to yield a frequency-domain representation is presented using a step-invariant technique. A critical comparison is made between the step-invariant design method and the well known bilinear z-transform approach. It is shown that a practical digital phase-advance network may be realised using the step-invariant method.
Get full access to this article
View all access options for this article.
References
1.
SteiglitzK.An Introduction to Discrete Systems, J. Wiley (1974).
2.
HealeyM. and ThomasJ. G.‘Numerical or digital filtering’. Int. J. Elect. Enging Educ., 7, No. 3/4, (Dec. 1969).
3.
AckroydM. H.Digital Filters, Butterworth Computers in Medicine Series (1973).
4.
SekeyA. A.‘On some peculiarities of z-transformations and digital filter design’, Int. J. Elect. Enging Educ., 12, (April 1975).
5.
FrederickD. K. and CarlsonA. B.Linear Systems in Communications and Control, Chap. 13, pp 526, J. Wiley (1971).
6.
OppenheimA. V. and SchaferR. W.Digital Signal Processing, Chap. 5, pp 203, Prentice-Hall (1975).
7.
StanleyW. D.Digital Signal Processing Chap. 7, pp. 190, Reston Publishing (1975).
8.
StearnsS. D.Digital Signal Analysis, pp 157–162, Hayden Book Co. (1975).
9.
RaderC. M. and GoldB., ‘Digital filter design techniques in the frequency domain’, Proc. IEEE, 55, No. 2, pp. 149–171, (Feb. 1967).
