Details

Autor(en) / Beteiligte

• Zhi-lai Zhang
• Shao-jun Jiang
• Li-li Liang

Titel

Analysis of DDS Sampling Method and Harmonic Composition

Ist Teil von

• Journal of information processing systems, 2023-04, Vol.19 (2), p.164-172

Erscheinungsjahr

2023

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• Through theoretical proof and algorithm design, this paper numerically demonstrates that the three sampling methods of DDS are equivalent in amplitude-frequency characteristics. Depending on theoretical analysis, the article obtains the conclusion that 2 points are optimal when sampling at 2, 3, and 4 points. Built on the data results, this paper obtains the fractional form of the amplitude and phase of the DDS sampled signal; in addition, this paper also obtains the design parameters of the DDS post-stage filter. It also gives a control method for the calculation error when addressing this issue.