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基于FPGA的DDS移相变频正弦信号发生器设计

更新时间:2020-05-23 04:47:54 大小:533K 上传用户:六3无线电查看TA发布的资源 标签:fpgadds正弦信号发生器 下载积分:5分 评价赚积分 (如何评价?) 收藏 评论(0) 举报

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直接数字频率合成技术(DDS)由于具有频率分辨率高、频率切换速度快、相位噪声低和频率稳定度高等优点,广泛应用于通信、航空航天、仪器仪表等领域。本文以FPGA为核心,以硬件设计语言VHDL为系统逻辑描述手段,设计了基于DDS原理的可移相、变频的正弦信号发生器。仿真及实验结果表明:该系统具有输出频率稳定、频率精度高,频率和相位可调等特点。

The direct digital frequency synthesis (DDS) technology has high frequency resolution, fast frequency switching, low phase noise and higher frequency stability, so it is widely used in communications, aerospace, instrumentation and other fields. In this paper, phase shift frequency variable sine signal generator with DDS as its core was designed based on Field Programmable Gate Array (FPGA) and hardware description language (VHDL). The experimental and simulation results show that the system has stable output frequency, high frequency accuracy, adjustable frequency and phase.

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基于FPGA的DDS移相变频正弦信号发生器设计.pdf 533K

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