Title :
Novel Method for QDDFS with Super High Compression Ratio
Author :
Xiaolin, Qiao ; Zhanfeng, Zhao ; Haiyan, Yu ; Zhiquan, Zhou
Author_Institution :
Harbin Inst. of Technol.
Abstract :
A novel method for quadrature direct digital frequency synthesizer with ten millions compression ratio, which is based on the Taylor expansions of sine and cosine, is firstly put forward. The traditional DDFS architecture is changed while accumulator is replaced by phase tipster in this system. Through this excellent method, super high frequency resolution is achieved. At last, a simple configuration of this system is presented
Keywords :
direct digital synthesis; QDDFS; Taylor expansions; phase tipster; quadrature direct digital frequency synthesizer; super high compression ratio; super high frequency resolution; Communication switching; Digital communication; Frequency synthesizers; Gold; Radar theory; Read only memory; Signal generators; Signal to noise ratio; Table lookup; Taylor series;
Conference_Titel :
Solid-State and Integrated Circuit Technology, 2006. ICSICT '06. 8th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0160-7
Electronic_ISBN :
1-4244-0161-5
DOI :
10.1109/ICSICT.2006.306323
