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基于FPGA的宽带信号产生和频率测量电路

更新时间:2020-06-03 04:40:25 大小:1M 上传用户:六3无线电查看TA发布的资源 标签:fpga宽带信号产生频率测量电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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设计基于FPGA的高频信号产生和频率测量电路。系统以FPGA为核心,辅以高速D/A、无源滤波、自动增益控制AGC等模块构成。利用FPGA对标准信号波形进行存储,结合DDS技术,通过高速D/A和无源滤波实现信号的产生。FPGA的计数器、闸门等实体电路实现了等精度测频。利用NIOS实现人机交互功能。实验测试表明,系统输出的三角波、正弦波、方波具有频带宽、频率稳定的特点,测频的相对误差达到10^-6。

The high-frequency signal generation and frequency measurement circuits based on FPGA are designed.The system takes FPGA as its core,and is composed of high-speed D/A,passive filter,automatic gain control(AGC)module,etc.FPGA is used to store the standard signal waveform,and combined with DDS technology to realize the signal generation by means of high-speed D/A and passive filter.The counter,strobe and physical circuits of FPGA are used to realize the equal precision frequency measurement.The NIOS is used to realize the human-computer interaction function.The experimental results show that the triangular wave,sine wave and square wave output by the system have the characteristics of wide frequency band and stable frequency,and the relative ...

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基于FPGA的宽带信号产生和频率测量电路.pdf 1M

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