Design of Improved DDS Signal Generator Based on Amplitude to Phase Sampling

Abstract:

Abstract: In this paper, the working principle of the Direct Digital frequency Synthesis (DDS) technique is briefly introduced. The main source of the spurious output is analyzed. After derived how to reduce the spurious signals, an improved DDS based on Amplitude to Phase sampling is proposed. It can decrease the phase truncation error to improve the frequency stability, reduce the phase quantization error, and save storage space. In the end, the simulation results display the performance of this DDS system.

• Periodical: Applied Mechanics and Materials (Volumes 303-306)
• Pages: 1873-1877
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.303-306.1873
• Online since: February 2013
• Authors: Ji Ye Huang, Ke Yin, Zou Hong
• Keywords: DDS, Field-Programmable Gate Array (FPGA), Phase Truncation, Spurious Signal

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