Abstract
This paper introduces an accurate and simple method by using Discrete Fourier Transform (DFT) to calculate the spectrum of Direct Digital Synthesis (DDS) in the presence of phase truncation. The analysis results show the relationships between spectrums of different output signals and different Frequency Control Words (FCW). By obtaining the spurious spectrum location and the spurious amplitude we can compute the Spurious Free Dynamic Range (SFDR) directly. This method greatly reduces the amount of computation and has the guiding significance in the practical application.
| Original language | English |
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| Title of host publication | ICTM 2009 - 2009 International Conference on Test and Measurement |
| Pages | 103-106 |
| Number of pages | 4 |
| DOIs | |
| Publication status | Published - 2009 |
| Event | 2009 International Conference on Test and Measurement, ICTM 2009 - Hong Kong, Hong Kong Duration: 5 Dec 2009 → 6 Dec 2009 |
Publication series
| Name | Proceedings of the International Symposium on Test and Measurement |
|---|---|
| Volume | 2 |
Conference
| Conference | 2009 International Conference on Test and Measurement, ICTM 2009 |
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| Country/Territory | Hong Kong |
| City | Hong Kong |
| Period | 5/12/09 → 6/12/09 |
Keywords
- DDS
- DFT
- Phase truncation
- SFDR
Cite this
Song, Y., Zeng, D., & Zeng, T. (2009). The Discrete Fourier Transform of Direct Digital Synthesis in the presence of phase truncation. In ICTM 2009 - 2009 International Conference on Test and Measurement (pp. 103-106). Article 5413101 (Proceedings of the International Symposium on Test and Measurement; Vol. 2). https://doi.org/10.1109/ICTM.2009.5413101