Journal of Information Processing Systems

  • 제19권2호
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  • Pages.164-172
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  • 2023
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  • 1976-913X(pISSN)
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  • 2092-805X(eISSN)
한국정보처리학회 (Korea Information Processing Society)
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Analysis of DDS Sampling Method and Harmonic Composition

  • Zhi-lai Zhang (Hebei key Laboratory of Optical Fiber Biosensing and Communication Devices (SZX2022010), Institute of Information Technology, Handan University) ;
  • Shao-jun Jiang (Hebei key Laboratory of Optical Fiber Biosensing and Communication Devices (SZX2022010), Institute of Information Technology, Handan University) ;
  • Li-li Liang (Hebei key Laboratory of Optical Fiber Biosensing and Communication Devices (SZX2022010), Institute of Information Technology, Handan University)
  • 투고 : 2021.09.03
  • 심사 : 2022.10.30
  • 발행 : 2023.04.30
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초록

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.

키워드

과제정보

This study was funded by the Youth Fund of the Chinese Natural Science Foundation of China (61805106).

참고문헌

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