Recurrent misconceptions in sampled-data/digital-control textbooks. II

Author

Johnson, C.D.

Author_Institution

Dept. of Electr. & Comput. Eng., Alabama Univ., Huntsville, AL, USA

fYear

1995

fDate

12-14 Mar 1995

Firstpage

336

Lastpage

341

Abstract

For pt.I, see Proc. 17th Southeastern Symposium on System Theory, p.188 (1985). This paper is a continuation of an earlier paper and is concerned with pointing-out, correcting and illustrating by an example, certain recurring misconceptions, errors, oversights, etc. That commonly appear in sampled-data/digital-control textbooks. In the present paper attention is focused on the correction of (i) an incorrect “solution expression” for difference equations having repeated zero-valued characteristic roots, (ii) incomplete discretizations of n^th-order linear plant models, and (iii) inappropriate credit for the Z-Transform idea

Keywords

Z transforms; control engineering education; difference equations; digital control; sampled data systems; Z-transform idea; difference equations; incomplete discretizations; misconceptions; n^th-order linear plant models; repeated zero-valued characteristic roots; sampled-data/digital-control textbooks; solution expression; Control system synthesis; Control systems; Difference equations; Differential equations; Digital control; Error correction; Mathematical model; Switches; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

System Theory, 1995., Proceedings of the Twenty-Seventh Southeastern Symposium on

Conference_Location

Starkville, MS

ISSN

0094-2898

Print_ISBN

0-8186-6985-3

Type

conf

DOI

10.1109/SSST.1995.390558

Filename

390558