摘要
介绍了一种小体积频率合成器的设计,该频率合成器通过直接数字频率合成器(DDS)产生线性调频信号,通过锁相环产生固定二本振信号,通过锁相环(PLL)与2倍频器产生一本振信号,通过变频部分完成二次混频产生射频激励信号。同时采用现场可编程门阵列(FPGA)完成DDS控制以及与系统通讯,电源控制部分产生各种电源。
The design of a small volume frequency synthesizer that generates linear frequency modulation signal through Direct Digital Synthesizer(DDS) is introduced,fixed second local oscillator signal through the Phase-Locking Loop(PLL) and generates a local oscillator signal through the phase-locked loop and frequency doubler is produced.At the same time,Field-Programmable Gate Array(FPGA) is used to complete DDS control and communication with the system,and the power control part generates various power sources.
出处
《现代导航》
2023年第6期451-454,共4页
Modern Navigation
关键词
频率合成器
锁相环
直接数字频率合成器
本振
变频
Frequency Synthesizer,Phase-Locking Loop
Direct Digital Synthesizer
Local Oscillator
Frequency Transformer
