Modeling and implementation of a frequency sweeping signal generator based on FPGA and DAC

Lin Li; Yongfang Liu

doi:10.1117/12.2661189

9 December 2022 Modeling and implementation of a frequency sweeping signal generator based on FPGA and DAC

Lin Li, Yongfang Liu

Proceedings Volume 12492, International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022); 124920A (2022) https://doi.org/10.1117/12.2661189
Event: International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022), 2022, Wuhan, China

Abstract

In this paper, a frequency sweeping signal generator based on FPGA and DAC was described. The signal generator used FPGA and Verilog to design direct digital synthesizer and then realize linear sweeping signal waveform. Several parameters can be adjusted in the software, such as frequency tuning word, delta frequency tuning word, delta frequency ramp rate word, the signal generator will generate linear sweeping waveform. Detailed design of FPGA is presented. Meanwhile, relevant experiments are given, and the experimental result shows that this signal generator can improve the frequency resolution of the direct digital frequency synthesizer effectively and has very good spectral characteristics.

Citation Download Citation

Lin Li and Yongfang Liu "Modeling and implementation of a frequency sweeping signal generator based on FPGA and DAC", Proc. SPIE 12492, International Workshop on Automation, Control, and Communication Engineering (IWACCE 2022), 124920A (9 December 2022); https://doi.org/10.1117/12.2661189

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