基于FPGA中DDS IP核的设计应用

Design and Application of DDS IP Core Based on FPGA

随着数字信号处理高速发展,直接数字频率合成(DDS)IP核在FPGA中应用越来越广,通过调用Vivado中IP核实现任意频率波形信号输出,集成度高且灵活性好。本文简要介绍DDS基本原理,设计DDS常用计算公式,描述了FPGA中DDSIP核使用,搭建测试环境,在Vivado环境下仿真测试,并验证产生波形信号的正确性。

With the rapid development of digital signal processing,the direct digital frequency synthesis(DDS)IP core is more and more widely used in FPGA.By calling Vivado IP core to achieve arbitrary frequency waveform signal output,high integration and good flexibility.In this paper,the basic principle of DDS is briefly introduced,the common calculation formula of DDS is designed,the use of DDS IP core in FPGA is described,the test environment is built,the simulation test id conducted in Vivado environment,and the correctness of waveform signal is verified.