DocumentCode
358869
Title
State truncation error in disk drive servo systems
Author
Zhu, Bo ; Sun, Yu ; Guo, Lin ; Tomizuka, Masayoshi
Author_Institution
Dept. of Mech. Eng., California Univ., Berkeley, CA, USA
Volume
5
fYear
2000
fDate
2000
Firstpage
3071
Abstract
Cost-effective fixed-point digital signal processors (DSP) are widely used in disk drive servo systems. However, the state truncation error (STE) of fixed-point DSP is by far an ignored source of the position error signal (PES). This paper identifies and models the STE as noise sources. Frequency domain analysis leads to some general methods to minimize the effect of STE in PES
Keywords
disc drives; frequency-domain analysis; hard discs; noise; roundoff errors; servomechanisms; PES; STE; cost-effective fixed-point digital signal processors; disk drive servo systems; fixed-point DSP; frequency domain analysis; noise sources; position error signal; state truncation error; Analog-digital conversion; Control systems; Digital control; Digital signal processing; Digital signal processors; Disk drives; Finite wordlength effects; Noise figure; Quantization; Servomechanisms;
fLanguage
English
Publisher
ieee
Conference_Titel
American Control Conference, 2000. Proceedings of the 2000
Conference_Location
Chicago, IL
ISSN
0743-1619
Print_ISBN
0-7803-5519-9
Type
conf
DOI
10.1109/ACC.2000.879130
Filename
879130
Link To Document