Title :
Servo Systems Using Multi-rate Notch Filters To Attenuate Resonances Beyond Nyquist Rate
Author :
Cao, Wen-Jun ; Ding, MingZhong ; Ooi, KianKeong
Author_Institution :
Seagate Technol., Singapore
Abstract :
This paper presents a systematic computation method of discrete-time plant response based on the continuous-time bode measurement, also proposes a 2times multi-rate notch filter to attenuate the resonant mode higher than sampling rate
Keywords :
Nyquist criterion; continuous time filters; control system synthesis; discrete time systems; notch filters; open loop systems; Nyquist rate; continuous-time bode measurement; discrete-time plant; hard disk; multirate notch filter; resonance attenuation; servosystems; Attenuation measurement; Costs; Delay; Disk drives; Filters; Frequency response; Resonance; Sampling methods; Servomechanisms; Transfer functions; Hard disk; Servos; filer; multi-rate; notch;
Conference_Titel :
Control, Automation, Robotics and Vision, 2006. ICARCV '06. 9th International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0341-3
Electronic_ISBN :
1-4214-042-1
DOI :
10.1109/ICARCV.2006.345429
