Paper
9 December 2022 Modeling and implementation of a frequency sweeping signal generator based on FPGA and DAC
Author Affiliations +
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.
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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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KEYWORDS
Signal generators

Field programmable gate arrays

Clocks

Linear filtering

Frequency modulation

Modulation

Phase shift keying

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