基于宽带采样示波器的射频调幅信号测量

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI) Pub Date : 2019-11-01 DOI:10.1109/ICEMI46757.2019.9101740

Z. Jiangmiao, M. Peixiang, Zhao Kejia, Qiao Mengyuan, Gao Xiuna

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引用次数: 0

摘要

本文提出了一种新的射频调幅信号溯源测量方法。采用国家脉冲参数基准50GHz宽带采样示波器对射频调幅信号进行测量。构建了射频调幅信号波形测量系统。在对采集波形的时间抖动误差进行校正后，采用共向正交法和最小二乘法精确恢复射频调幅信号的相位、幅度和频率参数。实验结果表明，利用宽带采样示波器测量射频调幅信号和数字化解调信号的方法取得了良好的效果，实现了波形参数的精确恢复，为时域射频调制信号的溯源性测量提供了新的思路。

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Measurement of RF AM signal based on broadband sampling oscilloscope

In this paper, a new traceable method for measuring RF AM signal is presented. The 50GHz broadband sampling oscilloscope which is the national pulse parameter reference is used to measure the RF AM signal. A waveform measurement system for radio frequency amplitude modulation signal is constructed. After correcting the time-based jitter error of the collected waveform, the phase, amplitude and frequency parameters of radio frequency amplitude modulation signal are accurately restored by the co-directional orthogonal method and the least square method. The experimental results show that the method of using broadband sampling oscilloscope to measure the RF amplitude modulation signal and digitizing demodulation signal has excellent results, which achieves the accurate recovery of waveform parameters, and provides a new idea for traceability measurement of time domain RF modulation signal.

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来源期刊

2019 14th IEEE International Conference on Electronic Measurement & Instruments (ICEMI)

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