Error coefficients, a measure of steady-state polynomial tracking accuracy, have commonly, though inappropriately, been based on the actuating error in a negative unity feedback configuration. This paper develops an alternate introductory presentation correcting this misdirected structural normalization by providing generalized formulas directly related to system tracking capability.
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References
1.
TruxalJ. G.Automatic Feedback Control System Synthesis, McGraw-Hill, pp. 80–87 (1955).
2.
DorfR. C.Modem Control Systems. Addison-Wesley, pp. 107–111 (1974).
3.
D'AzzoJ. J. and HoupisC. H.Linear Control System Analysis and Design, McGraw-Hill, pp. 184–190 (1975).
4.
MelsaJ. L. and SchultzD. G.Linear Control Systems, McGraw-Hill, pp. 383–393 (1969).
5.
EveleighW. V.Introduction to Control System Design, McGraw-Hill, pp. 249–255 (1972).
6.
HaleF. J.Introduction to Control System Analysis and Design, Prentice-Hall, pp. 116–124 (1973).
7.
ChenC.-T.Analysis and Synthesis of Linear Control Systems, Holt, Rinehart, and Winston, pp. 271–273 (1975).
8.
OgataK.Modern Control Engineering, Prentice-Hall, pp. 283–296 (1970).
9.
KuoB. C.Automatic Control Systems, Prentice-Hall, pp. 262–271 (1975).
10.
RavenF. H.Automatic Control Engineering, McGraw-Hill, pp. 156–160 (1978).
11.
GuptaS. C. and HasdorffL.Fundamentals of Automatic Control, John Wiley, pp. 82–92 (1970).
12.
ClarkR. N.Introduction to Automatic Control Systems, John Wiley, pp. 283–292 (1962).
13.
RaoM. V. C.‘Comments on “Linear systems and nonunity feedback”,’IEEE Trans, on Aut. Control, AC-22, no. 1, pp. 150–151, (February 1977).
14.
WolfeC. A. and MeditchJ. S.‘Theory of system type for linear multivariable servo-mechanisms,’IEEE Trans, on Aut. Control, AC-22, no. 1, pp. 36–46 (February 1977).
