High-resolution waveform synthesis based on phase-amplitude mapping

• Autorzy: Ai Xin , Fu Zaiming , Liu Hanglin , Kong Dexuan

Identyfikatory

DOI

10.24425/mms.2024.150285

• Języki publikacji: EN

Abstrakty

EN

With rapid updating of semiconductor technology and continuous development of large-scale integrated circuits, the device under test has higher and higher requirements for the resolution, accuracy, and waveform modulation of the stimulation signal source. The traditional method of creating digital waveforms involves employing direct digital synthesis technology. However, the sampling rate and memory depth easily limit the adjustment range and resolution of its waveform timing parameters, and it is not easy to adjust the internal parameters of the waveform. Therefore, it is essential for modern electronic technology to further improve the programmability of synthesized waveforms under the condition of a limited sampling rate and memory. This paper presents a real-time waveform synthesis method using phase-amplitude mapping. The proposed method allows for arbitrary waveform generation without memory constraints and improved timing resolution. The sampling rate no longer limits the resolution of the device. It offers amplitude, frequency, phase, and pulse-width modulation for the test device. In addition, a low-cost, no-memory, full-phase, parallel waveform synthesizer is realized on the hardware platform of “FPGA+DAC”. Finally, in this paper, the resolution of the synthesized waveforms based on a Xilinx FPGA and a DAC is improved by a factor of 4 compared to the sampling time.

Słowa kluczowe

EN

waveform synthesis; real-time computation; waveform modulation; timing resolution

• Wydawca: Komitet Metrologii i Aparatury Naukowej PAN
• Czasopismo: Metrology and Measurement Systems
• Rocznik: 2024
• Tom: Vol. 31, nr 3
• Strony: 547--564
• Opis fizyczny: Bibliogr. 23 poz., rys., wykr., wzory

Twórcy

autor

Ai Xin

• University of Electronic Science and Technology of China, School of Automation Engineering, Chengdu 611731, China

autor

Fu Zaiming

• University of Electronic Science and Technology of China, School of Automation Engineering, Chengdu 611731, China

autor

Liu Hanglin

• University of Electronic Science and Technology of China, School of Automation Engineering, Chengdu 611731, China

autor

Kong Dexuan

• University of Electronic Science and Technology of China, School of Automation Engineering, Chengdu 611731, China

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2025).