该高频正弦信号发生器基于直接数字频率合成（DDS）和数字锁相环技术（DPLL），以微控制器（MCU）和现场可编程逻辑门阵列（FPGA）为核心，辅以必要的外围电路设计而成。系统主要由正弦信号发生、红外遥控、高速模数（A/D）－数模（D/A）转换、信号调制和后级处理等模块组成。-The high-frequency sinusoidal signal generator based on Direct Digital Synthesis (DDS) and digital PLL (DPLL), a microcontroller (MCU) and field programmable gate array (FPGA) as the core, supplemented by the necessary peripheral from circuit design. System is composed of sinusoidal signal, infrared remote control, high-speed module (A/D)- digital-analog (D/A) conversion, signal modulation and post-level processing modules.