基于FPGA的幅度和相位可调信号发生器

Amplitude and phase adjustable signal generator based on FPGA

介绍了一种基于FPGA的幅度和相位可调信号发生器的设计与实现,给出了系统调制信号的产生和调整原理、波形发生器幅度和相位调整的实现过程。该系统采用从存储器中连续读取数据的方式实现信号幅度和相位的实时调整,采用VHDL语言以Xi l i nx公司的器件作为平台编程,用model si m进行仿真验证。实验结果表明,该方法能很好地实现对调制信号的幅度和相位的实时调整。

A design and implementation of amplitude and phase adjustable signal generator based on FPGA is presented. The principle of system modulation signal generation and adjustment, the implementation process of waveform generator amplitude and phase adjustment are given. The system uses the way of reading data continuously from memory to achieve real-time adjustment of signal amplitude and phase, uses VHDL lan- guage with Xilinx company device for programming platform, and uses modelsim for simulation verification. The experiment results show that this method can efficiently implement real-time adjustment of modulation signal amplitude and phase.