An Improvement of the Sunderland Algorithm in DDFS
Yuan Guo-shun · Microcomputer Information · 2009
This paper introduced the mechanism of DDFS (Direct Digital Frequency Synthesizer). Based on the analysis of noise sources and the solutions to improve noise, we discussed the Sunderland algorithm which can compress data to enlarge ROMs. An improved data division method of Sunderland algorithm was proposed, which can get a better SFDR when using minimum ROMs and the result is proved via Matlab simulations.