基于FPGA的多通道信号源研究

2012 Second International Conference on Instrumentation, Measurement, Computer, Communication and Control Pub Date : 2012-12-08 DOI:10.1109/IMCCC.2012.306

A. Jia, Li Dong, Wang Yanlin

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引用次数: 0

摘要

在研究了信号源的结构和功能的基础上，结合当前信号源的特点和对多通道信号源的需求，设计了一种多通道信号源。它是通过FPGA芯片中的集成DDS电路、高速数模转换芯片、放大电路和滤波电路等实现的。实验证明，该方法可以产生频率、幅度和相位可调的标准正弦信号。频率范围0~125M Hz，幅值分辨率0.1V，相位分辨率π/512。

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Study of Multi-channel Signal Source Based on FPGA

Studying on the structure and function of signal source, combined with the features of the current signal source and the needs for multi-channel signal source, a design of a multi-channel signal source is given in this paper. It is realized by the integrated DDS circuit in the FPGA chip, high-speed DA conversion chip, amplifying circuit and filter circuit etc. It has been proved that it can generate standard sin signal which has adjustable frequency, amplitude and phase. The frequency range is 0~125M Hz, amplitude resolution 0.1V and phase resolution π/512.

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2012 Second International Conference on Instrumentation, Measurement, Computer, Communication and Control

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