Title :
An Improved Direct Digital Frequency Synthesis System Design
Author :
Wang, Qingdong ; Xie, Changsheng ; Wang, Haiwei ; Liu, Chun
Author_Institution :
Sch. of Comput. Sci. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan
Abstract :
This paper researches a programmable signal device by an improved direct digital frequency synthesis technology on DSP and FPGA to simulate servo signal for read-write channel of micro hard disk. This device has wide frequency range from 1 Hz to 10MHz, high frequency resolution of 0.001 Hz, high precision of frequency, phase and amplitude of output wave, good reliability, little distortion. Compared with general devices, this device can generate all kinds of servo signal, and circuit is simply, reliable, and programmable
Keywords :
direct digital synthesis; field programmable gate arrays; hard discs; signal processing; 1 Hz to 10 MHz; DSP; FPGA; direct digital frequency synthesis system design; micro hard disk; programmable signal device; read-write channel; servo signal; Circuits; Digital signal processing; Field programmable gate arrays; Frequency synthesizers; Hard disks; Phase distortion; Servomechanisms; Signal generators; Signal resolution; Signal synthesis;
Conference_Titel :
Networking, Architecture, and Storages, 2006. IWNAS '06. International Workshop on
Conference_Location :
Shenyang
Print_ISBN :
0-7695-2651-9
DOI :
10.1109/IWNAS.2006.16
