The design of direct digital frequency synthesis based on ROM lookup table

Ming Gang Gan*, Jie Chen, Lan Cheng, Ting Yu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

The existing direct digital frequency synthesis (DDFS) only can generate one kind of waveform with one read-only memory lookup table (ROM LUT), which cannot provide in-phase wave and quadrature wave for global position system(GPS) carrier tracking . A DDFS is designed based on ROM LUT. Using the symmetry of the sine wave and the property that cosine waveform is leading or lagging one fourth period compared with sine waveform , only one fourth of the storage table of sin waveform is needed to develop both the whole sin wave and cosine wave. The pipeline technique is utilized to improve the working speed of the system. Assisted by Quartus II software and very high speed integrated circuit hardware description language(VHDL), a simulation to the designed DDFS is finished with a good result. At last, an error analysis is made to the result of simulation.

Original languageEnglish
Title of host publicationProceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009
DOIs
Publication statusPublished - 2009
Event2009 International Conference on Information Engineering and Computer Science, ICIECS 2009 - Wuhan, China
Duration: 19 Dec 200920 Dec 2009

Publication series

NameProceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009

Conference

Conference2009 International Conference on Information Engineering and Computer Science, ICIECS 2009
Country/TerritoryChina
CityWuhan
Period19/12/0920/12/09

Keywords

  • Cosine wave
  • Direct digital frequency synthesis
  • Global position system
  • Sin wave
  • VHDL

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Gan, M. G., Chen, J., Cheng, L., & Yu, T. (2009). The design of direct digital frequency synthesis based on ROM lookup table. In Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009 Article 5363868 (Proceedings - 2009 International Conference on Information Engineering and Computer Science, ICIECS 2009). https://doi.org/10.1109/ICIECS.2009.5363868