基于fpga的数字移相信号发生器，本文设计的数字相移信号发生器以直接数字频率合成（DDS）技术为核心，用现场可编程门阵列（FPGA）来实现频率和相位的预置和改变，并完成信号的频率和相位差显示。设计中采用的是直接数字频率合成（DDS）技术-Fpga-based Digital Signal Generator shift, the paper design of digital phase-shift signal generator for direct digital frequency synthesis (DDS) technology as the core, with a field programmable gate array (FPGA) to achieve frequency and phase of the preset and change and complete the signal frequency and phase display. Is used in the design of direct digital frequency synthesis (DDS) technology