COMPARATIVE-STUDY OF FINITE WORD-LENGTH EFFECTS IN SHIFT AND DELTA-OPERATOR PARAMETERIZATIONS

被引：58

作者：

LI, G ^{[1
]}

GEVERS, M ^{[1
]}

机构：

[1] NANYANE TECHNOL UNIV, SCH ELECT & ELECTR ENGN, SINGAPORE 2263, SINGAPORE

来源：

IEEE TRANSACTIONS ON AUTOMATIC CONTROL | 1993年 / 38卷 / 05期

关键词：

D O I：

10.1109/9.277251

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This note analyzes the sensitivity of transfer functions w.r.t. finite wordlength effect errors in the implementation of the coefficients of both shift operator and delta operator parameterizations. The relationships between optimal realization sets in shift and delta operator are established. It is shown that the optimal realizations in delta operator have better performance than those in shift operator when the poles of the systems are clustered around z = + 1. A numerical example is given.

引用

页码：803 / 807

页数：5

共 14 条

[1] OPTIMAL FWL DESIGN OF STATE-SPACE DIGITAL-SYSTEMS WITH WEIGHTED SENSITIVITY MINIMIZATION AND SPARSENESS CONSIDERATION [J].

GANG, L ;

ANDERSON, BDO ;

GEVERS, M ;

PERKINS, JE .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS, 1992, 39 (05) :365-377

[2]

HWANG SY, 1977, IEEE T ACOUST SPEECH, V25, P273, DOI 10.1109/TASSP.1977.1162971

[3] OPTIMAL FINITE PRECISION IMPLEMENTATION OF A STATE-ESTIMATE FEEDBACK CONTROLLER [J].

LI, G ;

GEVERS, M .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, 1990, 37 (12) :1487-1498

[4]

LI G, 1993, PARAMETERIZATIONS CO

[5]

LI G, 1993, IN PRESS IEEE T FEB

[6] DESIGN OF MULTI-INPUT MULTI-OUTPUT SYSTEMS WITH MINIMUM SENSITIVITY [J].

LUTZ, WJ ;

HAKIMI, SL .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, 1988, 35 (09) :1114-1122

[7]

Middleton R. H., 1990, DIGITAL ESTIMATION C

[8] IMPROVED FINITE WORD-LENGTH CHARACTERISTICS IN DIGITAL-CONTROL USING DELTA-OPERATORS [J].

MIDDLETON, RH ;

GOODWIN, GC .

IEEE TRANSACTIONS ON AUTOMATIC CONTROL, 1986, 31 (11) :1015-1021

[9]

PETERKA V, 1986, KYBERNETIKA, V22, pA1

[10] OPTIMAL-DESIGN OF STATE-SPACE DIGITAL-FILTERS BY SIMULTANEOUS MINIMIZATION OF SENSITIVITY AND ROUNDOFF NOISE [J].

TAVSANOGLU, V ;

THIELE, L .

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS, 1984, 31 (10) :884-888

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